研究成果｜国際会議論文

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査読付き国際会議論文

  1. Keiichi Mizutani, Shota Mori, Naoki Yamamoto, Hiroshi Harada, “Link-level Evaluation of 5G NR and Potential for Spectrum-sharing in the FR3 Band,” IEEE Wireless Communications and Networking Conference (WCNC), Milan, Italy, Mar. 2025.
  2. Satoshi Uemori, Ryogo Okura, Yusuke Koda, Hiroshi Harada, “Highly-Efficient Sidelink SSB Format and Synchronization Algorithm for Common-Mode Signaling in 5G NR Sidelink-Based mmWave WPAN Systems,” 2025 IEEE Wireless Communications and Networking Conference (WCNC), Milan, Italy, Mar. 2025.
  3. Shota Mori, Keiichi Mizutani, Hiroshi Harada, “Nonlinear Digital Self-Interference Cancellation for 5G NR-Based In-Band Full-Duplex Systems,” 2024 IEEE Conference on Standards for Communications and Networking (CSCN), Belgrade, Serbia, Nov. 2024.
  4. Takuma Nakaue, Daiki Kawamatsu, Yusuke Koda, Hiroshi Harada, “Routing Method for 5G NR-based V2X Single-Hop Communication Using SNR and Communication Failure-Based Metrics,” 2024 IEEE Conference on Standards for Communications and Networking (CSCN), Belgrade, Serbia, Nov. 2024.
  5. Fumihide Kojima, Masahiro Takagi, Shinsuke Miwa, Toshiyuki Miyachi, Takeshi Matsumura, Hirokazu Sawada, Hiroaki Harai, Jun-Ichi Takada, Hiroshi Harada, “Beyond 5G Testbed Environment employing the Large-Scale Wireless Emulator enabling the Layer Management Technology,” 2024 27th International Symposium on Wireless Personal Multimedia Communications (WPMC), Nov. 2024.
  6. Takeshi Matsumura, Fumihide Kojima, Hiroaki Harai, Jun-Ichi Takada, Hiroshi Harada, “Development and Basic Characteristics Verification of Hardware Wireless Link Emulator for Large-scale Wireless Emulation,” 2024 27th International Symposium on Wireless Personal Multimedia Communications (WPMC), Nov. 2024.
  7. Yusuke Koda, Norichika Ohmi, Hiroaki Endo, Hiroshi Harada, “Comprehensive 3GPP-compatible channel model for FR2-2 short-range communications for various indoor environments,” in Proc. pp. 1–7, IEEE PIMRC 2024, Valencia, Spain, Sep. 2024.
  8. Mihiro Hashimoto, Yusuke Koda, Hiroshi Harada, “Improved time cluster stochastic channel model for mmWave indoor short-range communications,” in Proc. pp. 1–6, IEEE PIMRC 2024, Valencia, Spain, Sep. 2024.
  9. Masaki Maeda, Yusuke Koda, Norichika Ohmi, and Hiroshi Harada, “105 GHz Indoor Omnidirectional Power Delay Profile Measurement in Personal Office Desktop Environment,” in Proc. IEEE VTC2024-Fall, Washington DC, USA, Oct. 2024.
  10. Ryogo Okura, Yusuke Koda, and Hiroshi Harada, “Performance Evaluation of Low Sub-THz 5G NR Sidelink for Ultra-Wideband Short-Range Communication,” in Proc. IEEE VTC2024-Fall, Washington DC, USA, Oct. 2024.
  11. Kazuki Takeda, Keiichi Mizutani, and Hiroshi Harada, “Open-Source Software-Based Beyond 5G Emulator for Evaluating Dynamic Full-Duplex Cellular System,” in Proc. IEEE VTC2024-Fall, Washington DC, USA, Oct. 2024.
  12. Yusuke Koda, Norichika Ohmi, Hiroaki Endo, Hiroshi Harada, “95 GHz sub-THz multi-path propagation measurement for indoor conference room desktop,” 2024 IEEE Wireless Communications and Networking Conference (WCNC), Dubai, UAE, pp. 1–6, Apr. 2024
  13. Keita Fukushima, Keiichi Mizutani, Hiroshi Harada, “A Study on Open-Loop Transmit Power Control for Scalable Cell-Free Networks,” 2024 IEEE 21st Consumer Communications & Networking Conference (CCNC), Jan. 2024
  14. Yuto Sasaki, Shota Mori, Riichi Yokoyama, Keiichi Mizutani, Hiroshi Harada “High-Precision 5G-NR Downlink Signal Detection Sensor Developed Using Software-Defined Radio,” 2023 IEEE Virtual Conference on Communications (VCC), Virtual, Nov. 2023
  15. Kazuki Takeda, Keiichi Mizutani, Hiroshi Harada “Open-Source Software-Based Full-Stack Evaluation Platform of Simplified UTW-OFDM for Beyond 5G,” 2023 IEEE Virtual Conference on Communications (VCC), Virtual, Nov. 2023
  16. Hiroshi Harada, “Fundamental Field Experiments of OFDMA Systems Using VHF-band in Urban Area,” 2023 26th International Symposium on Wireless Personal Multimedia Communications (WPMC), Florida, USA, Nov. 2023
  17. Yusuke Koda, Norichika Ohmi, Hiroaki Endo, Hiroshi Harada, “105 GHz Multipath Propagation Measurements and Path Loss Model for Sub-THz Indoor Short-Range Communications,” 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall), Hong Kong, Oct. 2023.
  18. Ryuichi Nagao, Hiroko Masaki, and Hiroshi Harada, “An Efficient Routing Method using Packet Buffer Management in Wi-SUN FAN”, 2023 IEEE World Forum of Internet of Things(WFIoT), Aveiro, Portugal, Oct. 2023.
  19. Keito Nakura, Hiroko Masaki, and Hiroshi Harada, “Performance Evaluation of IEEE 802.15.4 SUN OFDM in VHF-band for Super-large Coverage Communication Systems”, 2023 IEEE World Forum of Internet of Things(WFIoT), Aveiro, Portugal, Oct. 2023.
  20. Jaeseok Lim, Keito Nakura, and Hiroshi Harada, “Super-large Coverage IEEE 802.15.4g-FSK-based Wireless IoT System in VHF-band”, 2023 IEEE World Forum of Internet of Things(WFIoT), Aveiro, Portugal, Oct. 2023.
  21. Hiroshi Harada, Shota Mori, Norichika Ohmi, Yusuke Koda, Keiichi Mizutani, “Design of 3GPP-based Millimeter-Wave Band Wireless Virtual Community Network,” 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), Florence, Italy, June 2023.
  22. Hiroaki Endo, Yusuke Koda, Hiroshi Harada, “A Time-alignment Algorithm of Multiple Power Delay Profiles Measured by Antenna Rotations Towards Flexible mmWave Channel Measurements,” 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), Florence, Italy, June 2023.
  23. Kyoichi Iigusa, Hirokazu Sawada, Amane Miura, Hiroyuki Tsuji, Hiroshi Harada, “Reactance Dependence of Radiation Efficiency and Impedance Matching of A Wrapped Loop Antenna,” 2023 17th European Conference on Antennas and Propagation (EuCAP), March 2023.
  24. Hiroshi Harada, Shota Mori, Keiichi Mizutani, “Performance Evaluation of 5G in VHF Band for Super-large Coverage Communication Systems,” Proc. IEEE CSCN 2022, Nov. 2022.
  25. Daiki Kawamatsu, Keiichi Mizutani, Hiroshi Harada, “Highly Efficient Relay Routing Method for 5G Cellular V2V Communications,” Proc. IEEE CSCN 2022, Nov. 2022.
  26. Reo Gakumi, Hiroko Masaki, Keiichi Mizutani, and Hiroshi Harada, “Video Transmission Trial by Wireless Multi-hop Network based on Wi-SUN FAN,” Proc. WPMC 2022, Nov. 2022.
  27. Michiharu Nakamura, Keiichi Mizutani, Hiroshi Harada, Takeshi Matsumura, “Power Amplifier Linearization Using Orthogonal Polynomial Identified in Frequency Domain,” Proc. WPMC 2022, Oct-Nov. 2022.
  28. Takeshi Matsumura, Hirokazu Sawada, Toshiyuki Miyachi, Fumihide Kojima, Hiroaki Harai, Ayaka Sakaguchi, Hiroshi Harada, “Development and Initial Implementation of Large-scale Wireless Emulator Toward Beyond 5G,” Proc. WPMC 2022, Oct-Nov. 2022.
  29. Naoki Ishibashi, Keiichi Mizutani, and Hiroshi Harada, “An Upward Routing Method with Adaptive Transmission Power Control in Wi-SUN FAN,” Proc. 2022 IEEE 8th World Forum on Internet of Things (WF-IoT), Oct-Nov, 2022.
  30. Yuu Ichikawa, Keiichi Mizutani, Hiroshi Harada, “Highly Efficient OFDM Applying Symbol-Edges Truncating Transmission Technique,” Proc. IEEE 96th VTC 2022-Fall, Sep. 2022.
  31. Keito Nakura, Naoki Ishibashi, Hiroko Masaki, Keiichi Mizutani and Hiroshi Harada, “Experimental Evaluation of IEEE 802.15.4 OFDM for Wireless IoT Communication Systems,” Proc. pimrc2022, Virtual, Sep. 2022.
  32. Shota Mori, Keiichi Mizutani and Hiroshi Harada, “Digital Self-Interference Cancellation Scheme for Full-Duplex Cellular System in 5G,” Proc. PIMRC2022, Proc. pimrc2022, Virtual, Sep. 2022.
  33. Hiroshi Harada, Keiichi Mizutani, Takeshi Matsumura, Toyoyuki Kato, Ken Shioiri, “Development of Full-Duplex Cellular System for Beyond 5G and 6G Systems,” Proc. pimrc2022, Virtual, Sep. 2022.
  34. Hiroshi Harada, Hiroko Masaki, “Development of Wireless Emulator for Large-Scale IoT Applications,” Proc. pimrc2022, Virtual, Sep. 2022.
  35. Toshikazu Sakano, Satoru Shimizu, Kazuto Yano, Hiroshi Harada, “An R&D Program to Evolve Resilient Radio Resource Utilization and to Develop SMEs, Start-Ups and Young Talents to Lead Future Wireless Technology,” Proc. pimrc2022, Virtual, Sep. 2022
  36. Fumihide Kojima, Toshiyuki Miyachi, Takeshi Matsumura, Hirokazu Sawada, Hiroaki Harai, Hiroshi Harada, “A Large-Scale Wireless Emulation Environment with Interaction between Physical and Virtual Radio Nodes for Beyond 5G Systems,” Proc. pimrc2022, Virtual, Sep. 2022
  37. Yoshio Kashiwagi, Hiroshi Harada, Hiroko Masaki, Kazuki Osumi, “Development of Evaluation Systems for Large-Scale Wi-SUN FAN-Based IoT Applications,” Proc. pimrc2022, Virtual, Sep. 2022
  38. Keita Fukushima, Shota Mori, Keiichi Mizutani, and Hiroshi Harada, “Single-cell Dynamic Duplex Cellular System Using Distributed Receive-only Base Stations,” Proc. IEEE 95th VTC 2022-Spring, Virtual, June 2022.
  39. Hidetomo Ochiai, Keiichi Mizutani, Hiroshi Harada, “Wi-SUN FAN Multi-hop Network in Coexistence of IEEE 802.15.4 FSK and OFDM Transmission Schemes,” Proc. WPMC 2021, Dec. 2021
  40. Wei-Shun Liao, Ou Zhao, Keren Li, Takeshi Matsumura, Fumihide Kojima, Hiroshi Harada, “Automatic Convergence Detection for In-Band Full-Duplex System with Digital Self-Interference Cancellation Using Adaptive Filter,” Proc. WPMC 2021, Dec. 2021
  41. Hidetomo Ochiai, Keiichi Mizutani, Hiroshi Harada, “A Receiver for IEEE 802.15.4-based High-speed Mobile IoT Communication Systems,” Proc. WPMC 2021, Dec. 2021
  42. Masayuki Ishizaki, Kiyoshi Yamamoto, Masahiro Asano, Keiichi Mizutani, Hiroshi Harada, “Radio Sensor Development for Location Estimation Using Radio Big Data of ARIB STD-T103/119-compliant Wireless Communication Systems,” Proc. WPMC 2021, Dec. 2021
  43. Yuu Ichikawa, Keiichi Mizutani, Hiroshi Harada, “Inter-Carrier Interference Cancellation for 5G System Applying Simplified Universal Time-domain Windowed OFDM,” Proc. IEEE 94th VTC 2021-Fall, 2021
  44. Yudai Morikawa, Keiichi Mizutani, Hiroshi Harada, “Highly Efficient Demodulation Scheme for In-band Full-duplex Using Heterogeneous Wireless Communication Schemes,” Proc. IEEE 94th VTC 2021-Fall, 2021.
  45. Rei Hirakawa, Ryota Okumura, Keiichi Mizutani, Hiroshi Harada, “A Novel Routing Method with Load-Balancing in Wi-SUN FAN Network,” Proc. IEEE WF-IoT 2021, 2021.
  46. Ou Zhao, Wei-Shun Liao, Keren Li, Takeshi Matsumura, Fumihide Kojima, Hiroshi Harada, “Lazy Learning-Based Self-Interference Cancellation for Wireless Communication Systems With In-Band Full-Duplex Operations,” 2021 IEEE 32nd Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2021
  47. Shota Mori, Keiichi Mizutani, Hiroshi Harada, “Inter-User Interference Reduction Applying Successive Interference Cancellation for Dynamic-duplex Cellular System,” 2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), 2021
  48. Kyoichi Iigusa, Hirokazu Sawada, Takeshi Matsumura, Fumihide Kojima, Hiroshi Harada, “Experimental Verification of an Approximate Admittance Equation for Center-Fed Dipoles Arranged Parallel Beside Each Other and Estimation of Its Effective Frequency Range,” 2021 15th European Conference on Antennas and Propagation (EuCAP), 2021
  49. Shingo Tomida, Keiichi Mizutani, Hiroshi Harada, “Radio Protection Area Estimation Methods for Spectrum Sharing-based 5G System”, 2021 IEEE 18th Annual Consumer Communications & Networking Conference (CCNC) , 2021.
  50. Yuya Arakawa, Kazuki Nishikori, Keiichi Mizutani, Takeshi Matsumura, Hiroshi Harada, “An Initial Study of Dynamic-Duplex Cellular System on 5G NR Downlink in High SHF Band”, 2021 IEEE 18th Annual Consumer Communications & Networking Conference (CCNC), 2021.
  51. Robby Wayong, Ryota Okumura, Keiichi Mizutani, Hiroshi Harada, “A Routing Protocol toward Reliable Mobile Communication in Wi-SUN FAN”, 2021 IEEE 18th Annual Consumer Communications & Networking Conference (CCNC), 2021.
  52. Hidetomo Ochiai, Kiyoshi Mizutani, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “A High-speed Wi-SUN FAN Network by Highly-Dense Frequency Hopping,” Proc. IEEE VTC2020-Fall, pp. 1-5, Virtual, Nov. 2020.
  53. Ruiting Ouyang, Takeshi Matsumura, Keiichi Mizutani, and Hiroshi Harada,  “Channel Modeling Algorithm for TVWS-based IEEE 802.22 WRAN System in Rural Areas,” Proc. IEEE VTC2020-Fall, pp. 1-5, Virtual, Nov. 2020.
  54. Atomu Sakai, Keiichi Mizutani, Takeshi Matsumura, and Hiroshi Harada, “High-efficient Sensing Methods of Primary Wireless Transmission System for Dynamic Spectrum Sharing-based 5G System,” Proc. WPMC2020, pp. 1-6, Virtual, Oct. 2020.
  55. Ruiting Ouyang, Takeshi Matsumura, Keiichi Mizutani, and Hiroshi Harada, “Development of Evaluation Platform for IEEE 802.22-based Highly Mobile WRAN Communication System with an SDR-based Receiver,” Proc. WPMC2020, pp. 1-6, Virtual, Oct. 2020.
  56. Keiichi Mizutani and Hiroshi Harada, “Analytical Model of Quantization Noise for In-Band Full-duplex Wireless Communications,” Proc. WPMC2020, pp. 1-6, Virtual, Oct. 2020.
  57. Kiyoshi Mizutani, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Coexistence of Synchronous and Asynchronous MAC Protocols for Wireless IoT Systems in Sub-Gigaherz Band,” Proc. IEEE WF-IoT 2020, pp. 1-6, Virtual, Jun. 2020.
  58. Yueying Xiang, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Data Rate Enhancement for IEEE 802.15.4 Based FSK Transmission Scheme,” Proc. IEEE WF-IoT 2020, pp. 1-6, Virtual, Jun. 2020.
  59. Robby Wayong, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “A Scheduling Scheme for Channel Hopping in Wi-SUN FAN Systems toward Data Throughput Enhancement,” Proc. IEEE VTC2020-Spring, pp. 1-5, Virtual, May 2020.
  60. Shuzhi Liu, Keiichi Mizutani, Takeshi Matsumura, and Hiroshi Harada,“Self-interference Cancellation Utilizing Superposition Modulation Technique for Single Carrier Full-duplex System,” Proc. IEEE VTC2020-Spring, pp. 1-5, Virtual, May 2020.
  61. Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Dependable Source Routing Scheme for Multi-Hop Networks Based on Receiver-Initiated MAC Protocol,” Proc. of IEEE CCNC 2020, pp. 1–6, Las Vegas, USA, Jan. 2020.
  62. Kiyoshi Mizutani, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “A Home Area Heterogeneous Wireless Management Scheme by Wi-SUN FAN and Wi-Fi Systems,” Proc. of IEEE CCNC 2020, pp. 1–6, Las Vegas, USA, Jan. 2020.
  63. Kai Samejima, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Evaluation of CSL-based Low Power MAC Protocol for Wireless Smart Metering Networks,” Proc. of IEEE CCNC 2020, pp. 1–6, Las Vegas, USA, Jan. 2020.
  64. Daiki Hotta, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Stabilization of Multi-Hop Routing Construction in Wi-SUN FAN Systems,” Proc. of IEEE CCNC 2020, pp. 1–6, Las Vegas, USA, Jan. 2020.
  65. Kai Samejima, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Wireless Smart Ubiquitous Network by CSL-based Low Power MAC Protocol,” Proc. of IEEE CCNC 2020, pp. 1–2, Las Vegas, USA, Jan. 2020.
  66. Takayuki Hayashida, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Possibility of Dynamic Spectrum Sharing System by VHF-band Radio Sensor and Machine Learning,” Proc. of IEEE DySPAN 2019 Workshop on DD-DSS, pp. 1–6, Newark, USA, Nov. 2019.
  67. Kyoya Teramae, Keiichi Mizutani, Takeshi Matsumura, and Hiroshi Harada, “Enhancement of User Perceived Throughput in Sub-6 GHz Integrated Access and Backhaul with Dynamic Full-duplex,”Proc. of IEEE VTC2019-Fall, pp. 1–6, Honolulu, Hawaii, USA, Sep. 2019.
  68. Kazuki Nishikori, Kyoya Teramae, Keiichi Mizutani, Takeshi Matsumura, and Hiroshi Harada, “User Throughput Enhancement with Dynamic Full-Duplex Cellular System in Dense Urban Multi-cell Environment,” Proc. of IEEE pimrc 2019, pp. 1–6, Istanbul, Turkey, Sep. 2019.
  69. Thidarut Junjalearnvong, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Performance Evaluation of Multi-hop Network Configuration for Wi-SUN FAN Systems,” Proc. of IEEE CCNC 2019, pp. 1–6, Las Vegas, USA, Jan. 2019.
  70. Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “Analysis and Experimental Verification of F-RIT Protocol for Wireless Smart Utility Network,” Proc. of IEEE CCNC 2019, pp. 1–6, Las Vegas, USA, Jan. 2019.
  71. Yuji Mizutani, Keiichi Mizutani, Takeshi Matsumura, and Hiroshi Harada, “A Low-pass Filtered Time-domain Window for DFTs-OFDM to Reduce Out-of-band Emission with Low Complexity,” Proc. of IEEE CCNC 2019, pp. 1–2, Las Vegas, USA, Jan. 2019.
  72. Riichi Yokoyama, Keiichi Mizutani, Takeshi Matsumura, Hiroshi Harada, “UTW-OFDM-based 5G New Radio with Low Out-of-band Emission”, 22nd International Symposium on Wireless Personal Multimedia Communications (WPMC), 2019
  73. Keiichi Mizutani, Yosuke Kodama, Takeshi Matsumura, and Hiroshi Harada, “Performance Evaluation of Universal Time-domain Windowed GFDM-based LTE Uplink,” Proc. of WPMC 2018, pp. 1–5, Chiang Rai, Thailand, Nov. 2018.
  74. Kai Samejima, Ryota Okumura, Takuya Habara, Keiichi Mizutani, and Hiroshi Harada, “Practical Analysis of CSL Low Power MAC Protocol Based on IEEE 802.15.4e Frame Structure,” Proc. of WPMC 2018, pp. 1–5, Chiang Rai, Thailand, Nov. 2018.
  75. Ruiting Ouyang, Takeshi Matsumura, Keiichi Mizutani, and Hiroshi Harada, “A Robust Channel Estimation for IEEE 802.22 Enabiling Wide Area Vehicular Communication,” Proc. of WPMC 2018, pp. 1–6, Chiang Rai, Thailand, Nov. 2018.
  76. Takeshi Matsumura, Hiroto Kuriki, Keiichi Mizutani, and Hiroshi Harada, “Macro-Cell Capacity Enhancement with Synamic Full-Duplex Cellular System,” Proc. of WPMC 2018, pp. 1–6, Chiang Rai, Thailand, Nov. 2018.
  77. Riichi Yokoyama, Keiichi Mizutani, Takeshi Matsumura, Hiroshi Harada, Masaaki Fuse, and Hanako Noda, “An Effective Near-field Measurement Using Multicarrier Modulation Signal,” Proc. of WPMC 2018, pp. 1–6, Chiang Rai, Thailand, Nov. 2018.
  78. Yuji Mizutani, Keiichi Mizutani, Takeshi Matsumura, and Hiroshi Harada, “A Low Pass Filtered-Raised-Cosine Window for UTW-DFTs-OFDM,” Proc. of WPMC 2018, pp. 1–6, Chiang Rai, Thailand, Nov. 2018.
  79. Akihito Yoshito, Keiichi Mizutani, Takeshi Matsumura, and Hiroshi Harada, “A Frequency-domain ICI Cancellation Using Weight Matrix Based on Window Shape for Simplified UTW-OFDM,” Proc. of WPMC 2018, pp. 1–6, Chiang Rai, Thailand, Nov. 2018.
  80. Hiroshi Harada, Kiminobu Makino, Keiichi Mizutani, and Takeshi Matsumura, “A TV White Space Wireless Broadband Prototype for Wireless Regional Area Network,” Proc. of WPMC 2018, pp. 1–6, Chiang Rai, Thailand, Nov. 2018.
  81. Keiichi Mizutani, Takeshi Matsumura and Hiroshi Harada, “A Comprehensive Study of Universal Time-domain Windowed OFDM-based LTE Downlink System,” Proc. WPMC 2017, pp. 28-34, Yogyakarta, Indonesia, Dec. 2017.
  82. Keiichi Mizutani, Hiroto Kuriki, Yosuke Kodama, Takeshi Matsumura and Hiroshi Harada, “Performance Evaluation of TD-LTE in VHF-band for Large Coverage Public Broadband Communications System,” Proc. WPMC 2017, pp. 80-86, Yogyakarta, Indonesia, Dec. 2017.
  83. Kiminobu Makino, Keiichi Mizutani, Takeshi Matsumura and Hiroshi Harada, “A Transceiver Design of VHF Band Standardized Broadband Mobile Communications Systems,” Proc. WPMC 2017, pp. 87-93, Yogyakarta, Indonesia, Dec. 2017.
  84. Hiroto Kuriki, Keiichi Mizutani, Takeshi Matsumura and Hiroshi Harada, “Time-domain Channel Equalization for Subcarrier Spacing Compressed FDM with SC-MMSE Turbo Equalization Receiver,”Proc. WPMC 2017, pp. 143-149, Yogyakarta, Indonesia, Dec. 2017.
  85. Yosuke Kodama, Keiichi Mizutani, Takeshi Matsumura and Hiroshi Harada, “LTE Uplink System Based on Universal Time-domain Windowed DFTs-OFDM,” Proc. WPMC 2017, pp. 35-40, Yogyakarta, Indonesia, Dec. 2017.
  86. Thidarut Junjalearmvong, Takuya Habara, Ryota Okumura, Keiichi Mizutani, and Hiroshi Harada, “A Dynamic Routing Protocol Supporting Mobile Nodes in Wi-SUN FAN Systems,” Proc. WPMC 2017, pp. 324-330, Yogyakarta, Indonesia, Dec. 2017.
  87. Akihito Yoshito, Yosuke Kodama, Hiroto Kuriki, Keiichi Mizutani, Takeshi Matsumura and Hiroshi Harada, “A UTW-OFDM Without Symbol Overlapping Process for Small Cell Networks,” Proc. WPMC 2017, pp. 100-106, Yogyakarta, Indonesia, Dec. 2017.
  88. Keiichi Mizutani, Akihito Yoshito, Hiroto Kuriki, Takeshi Matsumura, and Hiroshi Harada, “Experimental Evaluation of Universal Time-domain Windowed OFDM-based LTE Downlink System by Real-time Wave-shaping,”Proc. IEEE pimrc’17, pp. 1-5, Montreal, QC, Canada, Oct. 2017.
  89. Yuji Mizutani, Hiroto Kuriki, Yosuke Kodama, Keiichi Mizutani, Takeshi Matsumura, and Hiroshi Harada, “Enhanced Universal Filtered-DFTs-OFDM for Long-delay Multi-path Environment,”Proc. IEEE pimrc’17, pp. 1-6, Montreal, QC, Canada, Oct. 2017.
  90. Takeshi Matsumura, Hiroki Ueno, Keiichi Mizutani, Hiroshi Harada, “Compact IEEE 802.22-based Radio Equipment Enabling Easy Installation for Regional Area Network System using TV White-spaces,”Proc. IEEE LANMAN 2017, pp. 1-6, Osaka, Japan, Jun. 2017.
  91. Ryota Okumura, Keiichi Mizutani, Hiroshi Harada, “A broadcast protocol for IEEE 802.15.4e RIT based Wi-SUN systems,”Proc. IEEE VTC2017-Spring, Sydney, pp.1-5, NSW, Australia, Jun. 2017.
  92. Hiroto Kuriki, Keiichi Mizutani, Takeshi Matsumura, Hiroshi Harada, “Enhanced UF-OFDM for Long-delay Multipath Fading Environment,”Proc. IEEE VTC2017-Spring, pp. 1-5, Sydney, NSW, Australia, Jun. 2017.
  93. Takuya Habara, Keiichi Mizutani, Hiroshi Harada, “A Load Balancing Algorithm for Layer 2 Routing based Wi-SUN Systems,”Proc. IEEE VTC2017-Spring Workshop on Wireless Access Technologies and Architectures for Internet of Things (IoT) Applications, pp. 1-5, Sydney, NSW, Australia, Jun. 2017.
  94. Hiroki Ueno, Takeshi Matsumura, Keiichi Mizutani, Hiroshi Harada, “An Implementable Channel and CFO Estimation Scheme for IEEE 802.22-based Radio Equipment,”Proc. IEEE WCNC 2017 Workshop on Smart Spectrum, pp. 1-5, San Francisco, CA, USA, Mar. 2017.
  95. Ryota Okumura, Jun Fujiwara, Keiichi Mizutani, Hiroshi Harada, “Experimental evaluation and analysis of F-RIT low power MAC protocol complied with IEEE 802.15.4e,”Proc. IEEE WCNC 2017, pp. 1-6, San Francisco, CA, USA, Mar. 2017.
  96. Takeshi Matsumura, Kazuo Ibuka, Kentaro Ishizu, Homare Murakami, Fumihide Kojima, Hiroshi Harada, “IEEE 802.11af-based baseband IC prototype enabling compact and low power consumption TV white-spaces devices”, IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN), Washington DC, USA, March 2017
  97. Kentaro Mochizuki, Kentaro Obata, Keiichi Mizutani, Hiroshi Harada, “Development and Field Experiment of Wide Area Wi-SUN System Based on IEEE 802.15.4g,” Proc. IEEE WF-IoT 2016, p.76-81, Reston, VA, USA, Dec. 2016.
  98. Jun Fujiwara, Ryota Okumura, Keiichi Mizutani, Hiroshi Harada, Sota Tsuchiya, Takuya Kawata, “Ultra-low Power MAC Protocol Complied with RIT in IEEE 802.15.4e for Wireless Smart Utility Networks,” Proc. IEEE pimrc’16, pp. 1-6, Valencia, Spain, Sep. 2016.
  99. Keiichi Mizutani, Hiroshi Harada, “Universal Time-domain Windowed OFDM,” Proc. IEEE VTC2016-Fall, pp. 1-5, Montreal, Canada, Sep. 2016.
  100. Kentaro Obata, Keiichi Mizutani, Hiroshi Harada, “Carrier Frequency Offset Estimation Scheme for IEEE 802.15.4g Based Wide Area Wi-SUN Systems,”Proc. IEEE ICC 2016, pp. 1-5, Kuala Lumpur, Malaysia, May 2016.
  101. Hiroki Ohara, Hirokazu Sawada, Masayuki Oodo, Hideki Kobayashi, Fumihide Kojima, Hiroshi Harada, Jun-ichi Takada, “Power delay profile measurement for VHF-band broadband mobile communication system”, IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Valencia, Spain, Sep. 2016.
  102. Verotiana H. Rabarijaona, Fumihide Kojima, Hiroshi Harada, “Hierarchical mesh routing implementation for indoor data collection” IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Valencia, Spain, Sep. 2016.
  103. Keiichi Mizutani, Kentaro Ishizu, Takeshi Matsumura, Ha Nguyen Tran, Hirokazu Sawada, Homare Murakami, Fumihide Kojima, Hiroshi Harada, “IEEE 802.11af Indoor Experiment in UK Ofcom TVWS Trial Pilot Program,”Proc. VTC 2015-Spring, pp. 1-5, Glasgow, UK, May 2015.
  104. Hirokazu Sawada, Keiichi Mizutani, Kentaro Ishizu, Takeshi Matsumura, Ha Nguyen Tran, Homare Murakami, Fumihide Kojima, Hiroshi Harada, “Path Loss and Throughput Estimation Models for an IEEE 802.11af Prototype,”Proc. VTC 2015-Spring, pp. 1-5, Glasgow, UK, May 2015.
  105. Stanislav Filin, Kentaro Ishizu, Fumihide Kojima, Hiroshi Harada, “Implementation of TV white space coexistence system based on IEEE 802.19.1 standard” IEEE Conference on Standards for Communications and Networking (CSCN), pp.206-211, Oct. 2015
  106. Stanislav Filin, Fumihide Kojima, Dominique Noguet, Jean-Baptiste Dore, Baher Mawlawi, Oliver Holland, Muhammad Zeeshan Shakir, Hiroshi Harada, “IEEE 1900.7 standard for white space dynamic spectrum access radio systems” IEEE Conference on Standards for Communications and Networking (CSCN), pp.218-223, Oct. 2015
  107. Jing Ma, Hiroshi Harada, Fumihide Kojima, “Proposal and performance evaluation of TVWS-Wi-SUN system”, IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pp.2002-2007,  Aug.-Sep. 2015
  108. Hirokazu Sawada, Masayuki Oodo, Tomoshige Kan, Fumihide Kojima, Hiroshi Harada, Hideki Kobayashi, Noriyuki Soma, Masafumi Moriyama, Osamu Yamamoto, Takaaki Yamato, Shigeki Yamamoto, “Receiver diversity evaluation for a VHF band broadband mobile communication system”, 2015 21st Asia-Pacific Conference on Communications (APCC), pp.104-108, Oct. 2015
  109. Oliver Holland, Shuyu Ping, Nishanth Sastry, Pravir Chawdhry, Jean-Marc Chareau, James Bishop, Hong Xing, Suleyman Taskafa, Adnan Aijaz, Michele Bavaro, Philippe Viaud, Tiziano Pinato, Emanuele Anguili, Mohammad Reza Akhavan, Julie McCann, Yue Gao, Zhijin Qin, Qianyun Zhang, Raymond Knopp, Florian Kaltenberger, Dominique Nussbaum, Rogerio Dionisio, Jose Ribeiro, Paulo Marques, Juhani Hallio, Mikko Jakobsson, Jani Auranen, Reijo Ekman, Heikki Kokkinen, Jarkko Paavola, Arto Kivinen, Tomaz Solc, Mihael Mohorcic, Ha Nguyen Tran, Kentaro Ishizu, Takeshi Matsumura, Kazuo Ibuka, Hiroshi Harada, Keiichi Mizutani, “Some Initial Results and Observations from a Series of Trials within the Ofcom TV White Spaces Pilot”, IEEE 81st Vehicular Technology Conference (VTC Spring), May 2015
  110. Kazuo Ibuka, Takeshi Matsumura, Kentaro Ishizu, Homare Murakami, Fumihide Kojima, Hiroshi Harada, “Development and Field Experiment of White-Spaces LTE Communication System in UK Digital Terrestrial TV Band”, IEEE 81st Vehicular Technology Conference (VTC Spring), May 2015.
  111. Takeshi Matsumura, Kentaro Ishizu, Keiichi Mizutani, Ha Nguyen Tran, Homare Murakami, Fumihide Kojima, Hiroshi Harada, “Long-haul Communication Trial in London TV White-space with IEEE 802.11af-based High Power Prototype”, 2015 18th International Symposium on Wireless Personal Multimedia Communications (WPMC), Dec. 2015.
  112. Takeshi Matsumura, Kazuo Ibuka, Kentaro Ishizu, Homare Murakami, Fumihide Kojima, Hiroyuki Yano, Hiroshi Harada, “Development of TV White-Space LTE Devices Complying with Regulation in UK Digital Terrestrial TV Band”, International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM2015), 156, pp.405-416, April 2015.
  113. Chang-Woo Pyo, Fumihide Kojima, Hiroyuki Yano, Hiroshi Harada, “Optimization of OFDMA upstream schedule for IEEE 802.22 wireless regional area networks”, International Symposium on Wireless Personal Multimedia Communications (WPMC), pp.168 -173, Sept. 2014
  114. Masayuki Oodo, Hiroshi Harada, “Current status of 200 MHz-band public broadband wireless communication system in Japan”, International Symposium on Wireless Personal Multimedia Communications (WPMC), pp.759- 764, Sept. 2014
  115. Keiichi Mizutani, Hiroshi Harada, “Adaptive time-domain windowing based transmit power control for TVWS-WLAN systems”, IEEE Wireless Communications and Networking Conference (WCNC), pp.259 -263, April 2014
  116. Chunyi Song, Kentaro Ishizu, Hiroshi Harada, “A small size spectrum sensing prototype with improved robustness to interference”, IEEE Wireless Communications and Networking Conference (WCNC), pp.3367 -3372, April 2014
  117. Verotiana H. Rabarijaona, Fumihide Kojima, Hiroshi Harada, “Hierarchical mesh tree protocol for efficient multi-hop data collection”, IEEE Wireless Communications and Networking Conference (WCNC), pp.2008 -2013, 2014
  118. Fumihide Kojima, Hiroshi Harada, “Superframe division multi-hop data collection with aggregation on Wi-SUN profile for ECHONET Lite”, IEEE Wireless Communications and Networking Conference Workshops (WCNCW), pp.116 -121, April 2014
  119. Oliver Holland, Nishanth Sastry, Shuyu Ping, Raymond Knopp, Florian Kaltenberger, Dominique Nussbaum, Juhani Hallio, Mikko Jakobsson, Jani Auranen, Reijo Ekman, Jarkko Paavola, Arto Kivinen, Ha Nguyen Tran, Kentaro Ishizu, Hiroshi Harada, Pravir Chawdhry, Jean-Marc Chareau, James Bishop, Michele Bavaro, Emanuele Anguili, Yue Gao, Rogerio Dionisio, Paulo Marques, Heikki Kokkinen, Olli Luukkonen, “A series of trials in the UK as part of the Ofcom TV white spaces pilot”, 1st International Workshop on Cognitive Cellular Systems (CCS), Sept. 2014
  120. Fumihide Kojima, Hiroshi Harada, “Low-energy and multi-hop enhancement in wireless smart utility networks”,  XXXIth URSI General Assembly and Scientific Symposium (URSI GASS), Aug. 2014
  121. Takeshi Matsumura, Kazuo Ibuka, Kentaro Ishizu, Homare Murakami, Hiroshi Harada, “Prototype of FDD/TDD dual mode LTE base station and terminal adaptor utilizing TV white-spaces”, 9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp.317 -322, 2014
  122. Ming-Tuo Zhou, Chunyi Song, Chin-Sean Sum, Hiroshi Harada, “Energy/bandwidth-saving cooperative spectrum sensing for two-hop WRAN”, 9th International Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp.51-56, 2014
  123. Chin-Sean Sum, Ming-Tuo Zhou, Liru Lu, Fumihide Kojima, Hiroshi Harada, “Performance and coexistence analysis of multiple IEEE 802 WPAN/WLAN/WRAN systems operating in TV White Space”, IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN), pp.145 -148, 2014
  124. Hirokazu Sawada, Tomoshige Kan, Keiichi Mizutani, Kentaro Ishizu, Homare Murakami, and Hiroshi Harada, “Building Penetration Loss Measurements for TVWS Systems,”Proc. APMC 2014, pp. 1058-1060, Sendai, Miyagi, Japan, Nov. 2014.
  125. Hiroshi Harada, Kentaro Ishizu, Homare Murakami, “White space communication systems toward 5th generation mobile communication systems”, Asia-Pacific Microwave Conference (APMC), pp.914-916, 2014.
  126. Hirokazu Sawada, Tomoshige Kan, Keiichi Mizutani, Kentaro Ishizu, Homare Murakami, and Hiroshi Harada, “Propagation Measurement for TVWS Interference Evaluation,”Proc. APMC 2014, PP. 1378-1380, Sendai, Miyagi, Japan, Nov. 2014.
  127. Chunyi Song, Ming-tuo Zhou, Pin-Hsun Lin, Hiroshi Harada, Chi Hieu Dinh, “A cooperative spectrum sensing method for sensing under noise uncertainty and interference”, International Conference on Advanced Technologies for Communications (ATC 2014), pp.204-207, Oct. 2014.
  128. Kentaro Ishizu, Kengo Hasegawa, Keiichi Mizutani, Hirokazu Sawada, Kei Yanagisawa, Toh Keat Beng, Takeshi Matsumura, Seishi Sasaki, Masahiro Asano, Homare Murakami, Hiroshi Harada, “Field Experiment of Long-distance Broadband Communications in TV White Space Using IEEE 802.22 and IEEE 802.11af,”WPMC2014, pp. 468-473, Sydney, Australia, Sep. 2014.
  129. Hirokazu Sawada, Tomoshege Kan, Chunyi Song, Hiroshi Harada, “Propagation model based on building penetration loss measurement in UHF band”, The 8th European Conference on Antennas and Propagation (EuCAP 2014), pp.2082-2083, April 2014.
  130. Kyoichi Iigusa, Hiroshi Harada, “Wideband T-shaped cross-section monopole antenna fed sideward from a ground plate”, 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), pp.1584-1585, July 2014.
  131. Kyoichi Iigusa, Hiroshi Harada, “Extraction of propagation parameters by single feed antennas loaded with variable reactances”, 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI), pp.1534-1535, 2014.
  132. Kyoichi Iigusa, Hiroshi Harada, “Degradation factors of short-distance wireless power transmission and allowable variation of receiving circuit parameters”, The 8th European Conference on Antennas and Propagation (EuCAP 2014), pp.1992-1996, 2014.
  133. Hiroshi Harada, Hirokazu Sawada, “Millimeter-wave channel modelling for IEEE802 standardizations”, The 8th European Conference on Antennas and Propagation (EuCAP 2014), pp.644-645, 2014.
  134. Xin Zhang, Liru Lu, Masayuki Oodo, Hiroshi Harada, “The evaluation of pilot symbol pattern in OFDM system from practical perspective”, 19th IEEE International Conference on Networks (ICON), 2013.
  135. Kyoichi Iigusa, Hiroshi Harada, “A wideband planar monopole antenna set perpendicularly beside a ground plate”, IEEE Antennas and Propagation Society International Symposium (APSURSI), pp.1102 -1103, 2013
  136. Tuncer Baykas, Stanislav Filin, Hiroshi Harada, “Verification of TVWS Coexistence System Based on P802.19.1 Draft Standard”, IEEE 77th Vehicular Technology Conference (VTC Spring), 2013
  137. Kentaro Ishizu, Homare Murakami, Hiroshi Harada, “Lessons from the earthquake through restoration activity of NICT for network infrastructure”, IEEE Region 10 Humanitarian Technology Conference, pp.206 -211, 2013
  138. Chin-Sean Sum, Ming-Tuo Zhou, Liru Lu, Fumihide Kojima, Hiroshi Harada, “Network performance of a low energy IEEE 802.15.4/4e/4m WPAN system utilizing TV white space”, IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pp.1629 -1633, 2013
  139. Chin-Sean Sum, Fumihide Kojima, Hiroshi Harada, “Performance analysis of a multi-hop IEEE 802.15.4g OFDM system in multi-PHY layer network”, IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pp.1538 -1542, 2013
  140. Takeshi Matsumura, Hiroshi Harada, “Prototype of tablet-type TV band portable device with UHF converter for TV white-spaces utilization”, IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), pp.2748 -2752, 2013
  141. Chin-Sean Sum, Fumihide Kojima, Hiroshi Harada, “Energy consumption evaluation for power saving mechanisms in recent IEEE 802.15.4 low-rate wireless personal area networks”, IEEE International Conference on Communications (ICC), pp.4449 -4454, 2013
  142. Fumihide Kojima, Hiroshi Harada, “A study on IEEE 802.15.4e compliant low-power multi-hop SUN with frame aggregation”, IEEE International Conference on Communications (ICC), pp.4041 -4045, 2013
  143. Ming-Tuo Zhou, Chunyi Song, Mohammad Azizur Rahman, Hiroshi Harada, “Measurement and characterization of broadband indoor TVWS radio channel on multipath spread”, IEEE International Conference on Communications (ICC), pp.5662-5667, 2013
  144. Pin-Hsun Lin, Zhou Lan, Gabriel Porto Villardi, Hiroshi Harada, “The cognitive radio in TV white space with coexistence constraint”, IEEE International Conference on Communications Workshops (ICC), pp.364 -369 , 2013
  145. Hiroshi Harada, Kentaro Ishizu, Homare Murakami, “A wireless network system in TV white space”, 16th International Symposium on Wireless Personal Multimedia Communications (WPMC), 2013
  146. Gabriel Porto Villardi, Hiroshi Harada, “Computer prediction of primary contour and service areas for unlicensed radio systems operating in TV white space”, IEEE Wireless Communications and Networking Conference (WCNC), pp.4528 -4533, 2013
  147. Zhou Lan, Keiichi Mizutani, Gabriel Porto Villardi, Hiroshi Harada, “Design and implementation of a Wi-Fi prototype system in TVWS based on IEEE 802.11 af”, IEEE Wireless Communications and Networking Conference (WCNC), pp.750-755, 2013
  148. Chin-Sean Sum, Fumihide Kojima, Hiroshi Harada, “Performance analysis of a multi-PHY coexistence mechanism for IEEE 802.15.4g FSK network”, 2013 IEEE Wireless Communications and Networking Conference (WCNC), pp.41-46, 2013
  149. Keiichi Mizutani, Zhou Lan, Ryuhei Funada, Hiroshi Harada, “IEEE802.11af with partial subcarrier system for effective use of TV white spaces”, 2013 IEEE International Conference on Communications Workshops (ICC), pp.1255-1259, 2013
  150. Tuncer Baykas, Junyi Wang, Stanislav Filin, Hiroshi Harada, “System design to enable coexistence in TV white space” IEEE Wireless Communications and Networking Conference Workshops (WCNCW), pp. 436 – 441, 2012 
  151. Yohannes D. Alemseged, Gabriel Porto Villardi, Chen Sun, Ha Nguyen Tran, Hiroshi Harada, “Distributed decision making to improve link quality in coexisting TVWS secondary networks” IEEE Wireless Communications and Networking Conference Workshops (WCNCW), pp. 36 – 40, 2012
  152. Chen Sun, Gabriel Porto Villardi, Zhou Lan, Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada, “Coexistence of secondary user networks under primary user constraints in TV white space” IEEE Wireless Communications and Networking Conference (WCNC), pp. 2146 – 2150, 2012
  153. Ha Nguyen Tran, Yohannes D. Alemseged, Chen Sun, Hiroshi Harada, “Reducing Load of Geo-Location Database by Querying with Secondary User’s Preferred Channels” IEEE 75th Vehicular Technology Conference (VTC Spring), 2012
  154. Gabriel Porto Villardi, Chen Sun, Yohannes D. Alemseged, Hiroshi Harada, “Coexistence of TV White Space enabled cognitive wireless access points” IEEE Wireless Communications and Networking Conference Workshops (WCNCW), pp. 18 – 23, 2012
  155. Mohammad Azizur Rahman, Chunyi Song, Hiroshi Harada, “Design Aspects of a Television White Space Device Prototype” IEEE 75th Vehicular Technology Conference (VTC Spring), 2012
  156. Chin-Sean Sum, Mohammad Azizur Rahman, Liru Lu, Fumihide Kojima, Hiroshi Harada, “On communication and interference range of IEEE 802.15.4g smart utility networks” IEEE Wireless Communications and Networking Conference (WCNC), pp.1169 – 1174, 2012
  157. Junyi Wang, Tuncer Baykas, Stanislav Filin, Mohammad Azizur Rahman, Chunyi Song, Hiroshi Harada, “Coexistence protocol design for autonomous decision-making systems in TV white space” IEEE Wireless Communications and Networking Conference (WCNC), pp. 3249 – 3254, 2012
  158. Junyi Wang, Stanislav Filin, Tuncer Baykas, Mohammad Azizur Rahman, Chunyi Song, Hiroshi Harada, “A feasible neighbor discovery algorithm for coexistence control system over TVWS” IEEE Wireless Communications and Networking Conference (WCNC), pp.3244 – 3248, 2012
  159. Mikio Hasegawa, Yohsuke Kon, Kentaro Ishizu, Homare Murakami, Hiroshi Harada, “Autonomous optimization techniques for cognitive dynamic wireless systems” IEEE Wireless Communications and Networking Conference Workshops (WCNCW), pp. 420 – 424, 2012
  160. Kiyohide Nakauchi, Kentaro Ishizu, Homare Murakami, Yasunaga Kobari, Yuji Nishida, Akihiro Nakao, Hiroshi Harada, “Virtual cognitive base station: Enhancing software-based virtual router architecture with cognitive radio” IEEE International Conference on Communications (ICC), pp. 2827 – 2832 ,2012
  161. Stanislav Filin, Hiroshi Harada, “IEEE DySPAN-SC activities on standardization of white space radio systems” IEEE International Conference on Communications (ICC), pp. 6916 – 6920 ,2012
  162. Chin-Sean Sum, Liru Lu, Fumihide Kojima, Hiroshi Harada, “An energy-efficient beaconless synchronization mechanism for Smart Utility Networks operating in TV white space” IEEE International Conference on Communications (ICC), pp. 3351 – 3356 ,2012
  163. Kyoichi Iigusa, Hiroshi Harada, “Bandwidth enhancement of bent monopole antenna by closely locating a slotted plate” IEEE Antennas and Propagation Society International Symposium (APSURSI), 2012
  164. Yohsuke Kon, Masato Ito, Nico Hassel, Mikio Hasegawa, Kentaro Ishizu, Hiroshi Harada, “Autonomous parameter optimization of a heterogeneous wireless network aggregation system using machine learning algorithms” IEEE Consumer Communications and Networking Conference (CCNC), pp. 894 – 898, 2012
  165. Fumihide Kojima, Hiroshi Harada, “Resource utilization on CWC-supported long-lived IEEE 802.15.4g/4e SUN for disaster radio” 15th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp. 225 – 229, 2012
  166. Kentaro Ishizu, Homare Murakami, Hiroshi Harada, “TV white space database for coexistence of primary-secondary and secondary-secondary systems in mesh networking” 15th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp. 118 -122, 2012
  167. Chang-Woo Pyo, Xin Zhang, Chunyi Song, Ming-Tuo Zhou, Hiroshi Harada, “A new standard activity in IEEE 802.22 wireless regional area networks: Enhancement for broadband services and monitoring applications in TV whitespace” 15th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp. 108 – 112 2012
  168. Noriyuki Yaginuma, Masahiro Umehira, Ryuhei Funada, Hiroshi Harada, “A guard band aggregation scheme for cognitive radio using TV white space” IEEE International Conference on Communication Systems (ICCS), pp. 428 – 432, 2012
  169. Chunyi Song, Hiroshi Harada, “An enhanced feature detection method for DTV signals” 15th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp. 50 – 54, 2012
  170. Chin-Sean Sum, Fumihide Kojima, Hiroshi Harada, “Enhanced Beaconless Synchronization for Regulatory Domain Specific IEEE 802.15.4g Smart Utility Networks” IEEE Vehicular Technology Conference (VTC Fall), 2012
  171. Takeshi Matsumura, Hiroshi Harada, “Prototype of UHF converter for TV white-space utilization” 15th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp. 123 – 127, 2012
  172. Vinh Dien Hoang, Xin Zhang, Stanislav Filin, Hiroshi Harada, “Introduction to 1900.7 network architecture, design and current status” 18th IEEE International Conference on Networks (ICON), pp. 315 – 319, 2012
  173. Chin-Sean Sum, Ming-Tuo Zhou, Liru Lu, Ryuhei Funada, Fumihide Kojima, Hiroshi Harada, “IEEE 802.15.4m: The first low rate wireless personal area networks operating in TV white space” 18th IEEE International Conference on Networks (ICON), pp. 326 – 332, 2012
  174. Chunyi Song, Hiroshi Harada, “A spectrum sensing prototype for Japanese digital television signals” IEEE Global Communications Conference (GLOBECOM), pp. 1271 – 1276, 2012
  175. Jing Gao, Keren Li, Hiroshi Harada, “60 GHz wideband antenna with air filled stacked patch structure”, 2011 IEEE International Symposium on Antennas and Propagation (APSURSI), pp.634-637, 2011
  176. Hiroshi Harada, Yohannes D. Alemseged, Oliver Holland, “IEEE Dynamic Spectrum Access Networks (DYSPAN) standards committee” 2nd International Conference on Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology(Wireless VITAE), 2011
  177. Hiroshi Harada, Masayuki Oodo, Ryuhei Funada, Ming-Tuo Zhou, Liru Lu, Xin Zhang, “A public broadband wireless communication system on VHF TV band” Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp. 351 – 354, 2011
  178. Hiroshi Harada, Yohannes D. Alemseged, Oliver Holland, “IEEE Dynamic Spectrum Access Networks (DySPAN) standards committee” Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp.121-125, 2011
  179. Hiroshi Harada, Ryuhei Funada, Keren Li, Shuzo Kato, “60 GHz band CMOS based transceiver for millimeter wave WPAN and WLAN systems” 14th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp. 1-5, 2011
  180. Chin-Sean Sum, Mohammad Azizur Rahman, Chen Sun, Fumihide Kojima, Hiroshi Harada, “Performance of Common Signaling Mode for Multi-PHY Management in Smart Utility Networks” IEEE International Conference on Communications (ICC), pp. 1-5, 2011
  181. Chin-Sean Sum, Fumihide Kojima, Hiroshi Harada, “Coexistence of homogeneous and heterogeneous systems for IEEE 802.15.4g smart utility networks” IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), pp. 510-520, 2011
  182. Chin-Sean Sum, Mohammad Azizur Rahman, Zhou Lan, Fumihide Kojima, Ryuhei Funada, Hiroshi Harada, “Performance analysis of low duty FSK system for Smart Utility Network” IEEE Wireless Communications and Networking Conference (WCNC), pp. 1568 -1573, 2011
  183. Kazuki Hashiguchi, Yohsuke Kon, Mikio Hasegawa, Kentaro Ishizu, Hiroshi Harada, “Traffic allocation control using support vector machine in heterogeneous wireless link aggregation” IEEE Consumer Communications and Networking Conference (CCNC), pp. 653-657, 2011
  184. Fumihide Kojima, Hiroshi Harada, “Dynamic Active Period Allocation with Topology Update Scheme for Low-Power SUN” IEEE International Conference on Communications (ICC), pp. 1-5, 2011
  185. Kiyohide Nakauchi, Kentaro Ishizu, Homare Murakami, Akihiro Nakao, Hiroshi Harada, “AMPHIBIA: A Cognitive Virtualization Platform for End-to-End Slicing” IEEE International Conference on Communications (ICC), pp. 1-5, 2011
  186. Stanislav Filin, Tuncer Baykas, Mohammad Azizur Rahman, Hiroshi Harada, “Performance Evaluation of IEEE 802.19.1 Coexistence System” IEEE International Conference on Communications (ICC), 2011
  187. Chunyi Song, Zhou Lan, Chin-Sean Sum, Junyi Wang, Tuncer Baykas, Hiroshi Harada, “Autonomous Dynamic Frequency Selection for WLANs Operating in the TV White Space” IEEE International Conference on Communications(ICC), pp. 1-6, 2011
  188. Liru Lu, Xin Zhang, Ryuhei Funada, Chin-Sean Sum, Hiroshi Harada, “Selection of modulation and coding schemes of single carrier PHY for 802.11ad multi-gigabit mmWave WLAN systems” IEEE Symposium on Computers and Communications (ISCC), pp. 348-352, 2011
  189. Stanislav Filin, Homare Murakami, Hiroshi Harada, Hitoshi Yoshino, Kanshiro Kashiki, Tatsuo Shibata, “ITU-R standardization activities on Cognitive Radio Systems” Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp. 116-120, 2011
  190. Kentaro Ishizu, Homare Murakami, Hirishi Harada, “Cognitive wireless network infrastructure and restoration activities for the earthquake disaster” 14th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp. 1-5, 2011
  191. Kentaro Ishizu, Homare Murakami, Hiroshi Harada, “Feasibility study on spectrum sharing type cognitive radio system with outband pilot channel” Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp. 286 – 290, 2011
  192. Chunyi Song, Mohammad Azizur Rahman, Hiroshi Harada, “New robust sensing methods for DVB-T signals” Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp. 1-5, 2011
  193. Kyoichi Iigusa, Hiroshi Harada, “Efficiency of short-distance wireless transmission considering radiation loss” IEEE International Symposium on Antennas and Propagation (APSURSI), pp. 1073 – 1076, 2011
  194. Mohammad Azizur Rahman, Chunyi Song, Hiroshi Harada, “Development of a TV white space cognitive radio prototype and its spectrum sensing performance” Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp. 231 – 235, 2011
  195. Soraya Contreras, Gabriel Porto Villardi, Ryuhei Funada, Hiroshi Harada, “An investigation into the spectrum occupancy in Japan in the context of TV White Space systems” Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp. 341 – 345, 2011
  196. Ha Nguyen Tran, Yohannes D. Alemseged, Chen Sun, Hiroshi Harada, “On the effect of local sensing database to cognitive radio systems” 14th International Symposium on Wireless Personal Multimedia Communications (WPMC), pp. 1-5, 2011
  197. Gabriel Porto Villardi, Hiroshi Harada, Giuseppe Thadeu Freitas de Abreu,, “Stochastic-geometric model of expected service area for cognitive TV White Space wireless networks” Sixth International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications (CROWNCOM), pp. 331-335, 2011
  198. Chunyi Song, Mohammad Azizur Rahman, Hiroshi Harada, “Proposal and hardware implementation of smart threshold setting methods for spectrum sensing” IEEE GLOBECOM Workshops (GC Wkshps), pp. 918 – 923, 2011
  199. Zhou Lan, Liru Lu, Xing Zhang, Chang-Woo Pyo, Hiroshi Harada, “A Space-Time Scheduling Assisted Cooperative Relay for mmWave WLAN/WPAN Systems with Directional Antenna” IEEE Global Telecommunications Conference (GLOBECOM), pp. 1-6, 2011
  200. Mikio Hasegawa, Kentaro Ishizu, Murakami, Hiroshi Harada, “Performance of neural network based distributed radio resource usage optimization algorithms in realistic heterogeneous wireless networks” IEEE 22nd International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), pp.690 – 694, 2011
  201. Hirokazu Sawada, Kazuya Fujita, Shuzo Kato, Katsuyoshi Sato, Hiroshi Harada, “Impulse response model for the cubicle environments at 60GHz”, 2010 Asia-Pacific Microwave Conference, 2010
  202. Hiroshi Harada, Tuncer Baykas, Chin-Sean Sum, Homare Murakami, Kentaro Ishizu, Stanislav Filin, Yohannes D. Alemseged, Ha Nguyen Tran, Chen Sun, Mohammad Azizur Rahman, Junyi Wang, Zhou Lan, Chang-Woo Pyo, Gabriel Porto Villardi, Chunyi Song, Ryuhei Funada, Fumihide Kojima, “Research, Development, and Standards Related Activities on Dynamic Spectrum Access and Cognitive Radio” IEEE Symposium on New Frontiers in Dynamic Spectrum, pp. 1 – 12, 2010
  203. Hiroshi Harada, Yohannes D. Alemseged, Stanislav Filin, Ha Nguyen Tran, Chen Sun, Oliver Holland, “IEEE SCC41 standards for dynamic spectrum access networks” The 13th International Symposium Wireless Personal Multimedia Communications(WPMC 2010), S13-2 (WPMC2010), S13-2, 2010
  204. Xueli An, Javad Vazifehdan, Ramjee Venkatesha Prasad, Ramin Hekmat, Hiroshi Harada, Ignas Niemegeers, “Extending WPANs to Support Multi-Hop Communication with QoS Provisioning” 7th IEEE Consumer Communications and Networking Conference (CCNC), pp. 1 – 6, 2010
  205. Chunyi Song, Yohannes D. Alemseged, Ha Nguyen Tran, Gabriel Porto Villardi, Chen Sun, Stanislav Filin, Hiroshi Harada, “Adaptive Two Thresholds Based Energy Detection For Cooperative Spectrum Sensing “ 7th IEEE Consumer Communications and Networking Conference (CCNC), pp. 1 – 6, 2010
  206. Chin-Sean Sum, Mohammad Azizur Rahman, Zhou Lan, Junyi Wang, Ryuhei Funada, Tuncer Baykas, Hiroshi Harada, Shuzo Kato, “A Scalable Heuristic Scheduling Strategy for 60GHz WPAN STDMA System with Directional Antennas” IEEE International Conference on Communications (ICC), 2010, pp. 1 – 6, 2010
  207. Fumihide Kojima, Hiroshi Harada, “Long-Lived Smart Utility Network Management Using Modified IEEE 802.15.4 MAC” IEEE International Conference on Communications Workshops (ICC), pp. 1 – 5, 2010
  208. Fumihide Kojima, Hiroshi Harada, “Study on Multipath Characteristics for IEEE 802.15.4g SUN Applications in the Frequency Band Used in Japan” IEEE International Conference on Communications Workshops (ICC), pp. 1 – 5, 2010
  209. Jing Gao, Keren Li, Hiroshi Harada, “Wideband stacked microstrip patch antenna on thin PTFE substrate for millimeter-wave personal area network (mmWPAN)” Antennas and Propagation Society International Symposium (APSURSI), pp. 1 – 4, 2010
  210. Kyoichi Iigusa, Hiroshi Harada, “Study on bandwidth enhancement of three-element Yagi-Uda antenna with narrow spacing” Antennas and Propagation Society International Symposium (APSURSI), pp. 1 – 4, 2010
  211. Tuncer Baykas, Xueli An, Chin-Sean Sum, Mohammad Azizur Rahman, Junyi Wang, Zhou Lan, Ryuhei Funada, Hiroshi Harada, Shuzo Kato, “Investigation of Synchronization Frame Transmission in Multi-Gbps 60 GHz WPANs” Wireless Communications and Networking Conference (WCNC), pp. 1 – 6, 2010
  212. Junyi Wang, Zhou Lan, Chang-Woo Pyo, Tuncer Baykas, Chin-Sean Sum, Mohammad Azizur Rahman, Jing Gao, Ryuhei Funada, Fumihide Kojima, Hiroshi Harada, Shuzo Kato, “A Pro-Active Beamforming Protocol for Multi-Gbps Millimeter-Wave WPAN Systems” Wireless Communications and Networking Conference (WCNC), pp. 1 – 5, 2010
  213. Hirokazu Sawada, Hiroyuki Nakase, Shuzo Kato, Masahiro Umehira, Katsuyoshi Sato, Hiroshi Harada, “Impulse Response Model and Parameters for Indoor Channel Modeling at 60GHz” IEEE 71st Vehicular Technology Conference (VTC 2010-Spring), pp. 1 – 5, 2010
  214. Ming-Tuo Zhou, Hiroshi Harada, Peng-Yong Kong, Jaya Shankar Pathmasuntharama, “Interference Range Analysis and Scheduling among Three-Hop Neighborhood in Maritime WiMAX Mesh Networks” Wireless Communications and Networking Conference (WCNC), pp. 1 – 6, 2010
  215. Chin-Sean Sum, Zhou Lan, Junyi Wang, Tuncer Baykas, Ryuhei Funada, Mohammad Azizur Rahman, Hiroshi Harada, Shuzo Kato, “A Cross Layer Interference and Coexistence Model for Millimeter-Wave WPAN with Directional Antennas” Wireless Communications and Networking Conference (WCNC), pp. 1 – 6, 2010
  216. Zhou Lan, Junyi Wang, Jing Gao, Chin-Sean Sum, Fumihide Kojima, Tuncer Baykas, Hiroshi Harada, Shuzo Kato, “Directional Relay with Spatial Time Slot Scheduling for mmWave WPAN Systems” Vehicular Technology Conference (VTC 2010-Spring), IEEE 71st, pp. 1 – 5, 2010
  217. Tuncer Baykas, Junyi Wang, Mohammad Azizur Rahman, Ha Nguyen Tran, Chunyi Song, Stanislav Filin, Yohannes D. Alemseged, Chen Sun, Gabriel Porto Villardi, Chin-Sean Sum, Zhou Lan, Hiroshi Harada, “Overview of TV White Spaces: Current regulations, standards and coexistence between secondary users” IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), pp. 38-43, 2010
  218. Mikio Hasegawa, Kentaro Ishizu, Homare Murakami, Hiroshi Harada, “Experimental evaluation of distributed radio resource optimization algorithm based on the neural networks for Cognitive Wireless Cloud” IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), pp. 32-37, 2010
  219. Ming-Tuo Zhou, Hiroshi Harada, “A cluster-free MAC protocol for cognitive IEEE 802.16 Mesh networks” IEEE 21st International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), pp. 1436-1441, 2010
  220. Xin Zhang, Liru Lu, Ryuhei Funada, Chin-Sean Sum, Hiroshi Harada, “Physical layer design and performance analysis on multi-Gbps millimeter-wave WLAN system” IEEE International Conference on Communication Systems (ICCS), pp. 92-96, 2010
  221. Chen Sun, Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada, “Optimization of Time Slot and Transmit Power at Secondary Users for Dynamic Spectrum Access” IEEE 72nd Vehicular Technology Conference Fall (VTC 2010-Fall), pp. 1-5, 2010
  222. Yohannes D. Alemseged, Ha Nguyen Tran, Chen Sun, Hiroshi Harada, “Media Access Scheme in Distributed Spectrum Sensing” IEEE 72nd Vehicular Technology Conference Fall (VTC 2010-Fall), 2010
  223. Ha Nguyen Tran, Yohannes D. Alemseged, Chen Sun, Hiroshi Harada, “Standardization activities in spectrum sensing and interface for dynamic spectrum access” IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), pp. 26-31, 2010
  224. Markus Mueck, Kari Kalliojarvi, Antti Piipponen, Jens Gebert, Gianmarco Baldini, Pierre-Jean Muller, Liu Guang, Kostas Tsagkaris, Panagiotis Demestichas, Stanislav Filin, Hiroshi Harada, Sithamparanathan Kandeepan, Abdur Rahim Biswas, Makis Stamatelatos, Nancy Alonistioti, Aawatif Hayar, Merouane Debbah, Thomas Haustein, “ETSI RRS — The standardization path to next generation cognitive radio systems” IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), pp. 9-14, 2010
  225. Ha Nguyen Tran, Yohannes D. Alemseged, Chen Sun, Hiroshi Harada, “Research, development and standardization activities on distributed spectrum sensing for dynamic spectrum access” Third International Conference on Communications and Electronics (ICCE), pp. 131-136, 2010
  226. Stanislav Filin, Kentaro Ishizu, Hiroshi Harada, “IEEE draft standard P1900.4a for architecture and interfaces for dynamic spectrum access networks in white space frequency bands: Technical overview and feasibility study” IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), pp. 15-20, 2010
  227. Takeshi Matsumura, Masayoshi Esashi, Hiroshi Harada, Florian Thalmayr, Ken-ya Hashimoto, Shuji Tanaka, “Selective mode excitation of piezoelectric disk-type resonator by electrode pattern definition” IEEE Ultrasonics Symposium (IUS), pp. 979-982, 2010
  228. Kentaro Ishizu, Kiyohide Nakauchi, Homare Murakami, Akihiro Nakao, Hiroshi Harada “AMPHIBIA: Overview of a Cognitive Virtualization Platform to Realize Future Cognitive Wireless Network Services” The 13th International Symposium Wireless Personal Multimedia Communications (WPMC2010), S13-1,2010
  229. Fumihide Kojima, Hiroshi Harada, “Development of Long-Lived Radio Terminal for Smart Utility Network Applications In Frequency Band Used In Japan” The 13th International Symposium Wireless Personal Multimedia Communications (WPMC2010), S7-4, 2010
  230. Xin Zhang, Wee Ser, Hiroshi Harada, “Adaptive circular beamforming using multi-beam structure”, 2010 18th European Signal Processing Conference, pp.2072-2076, 2010
  231. Kazuki Hashiguchi, Mikio Hasegawa, Kentaro Ishizu, Homare Murakami, Hiroshi Harada, “An Analysis of the Effects on Traffic Distribution Ratio Optimization in Heterogeneous Wireless Link Aggregation“, International Workshop on Nonlinear Circuits and Signal Processing, pp.145-148, 2010
  232. Takeshi Matsumura, Masayoshi Esashi, Hiroshi Harada, Shuji Tanaka , “Study on Integrated Multi-Band RF MEMS Filter for Future Cognitive Radio Terminal”, 2010 Joint China-Japan International Workshop on Acoustic Wave Devices (The 118th Technical Meeting of the 150th Committee, JSPS), 35-40, 2010
  233. Chen Sun, Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada, “Detection of Primary Users with Distributed Spectrum Sensors over Rayleigh Fading Channel”, 2009 IEEE 70th Vehicular Technology Conference Fall, 2009
  234. Hiroshi Harada, Homare Murakami, Kentaro Ishizu, Stanislav Filin, Goh Miyamoto, Ha Nguyen Tran,Yohannes D. Alemseged, Chen Sun, “Research and development on heterogeneous type and spectrum sharing type cognitive radio systems” 4th International Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2009
  235. Hiroshi Harada, Ryuhei Funada, Katsuyoshi Sato, Kyoichi Iigusa, Keren Li, “Research and development on UHF band inter-vehicle communication systems” 9th International Conference on Intelligent Transport Systems Telecommunications (ITST), pp.279-284, 2009
  236. Hiroshi Harada, “Cognitive wireless cloud : A network concept to handle heterogeneous and spectrum sharing type radio access networks” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009
  237. Hiroshi Harada, “Eco-Existence Green Communication by Spectrum Management” WPMC2009, SP1-3-2, Sep. 2009
  238. Hirokazu Sawada, Hiroyuki Nakase, Shuzo Kato, Masahiro Umehira, Katsuyoshi Sato, Hiroshi Harada, “Millimeter-wave propagation characterization for multi-gigabit video transmission system in living room” Asia Pacific Microwave Conference (APMC), pp.1080-1083, 2009
  239. Tuncer Baykas, Junyi Wang, Ryuhei Funada, Mohammad Azizur Rahman, Chin-Sean Sum, Ryota Kimura, Hiroshi Harada, Shuzo Kato, “Preamble Design for Millimeter-Wave Single Carrier WPANs” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  240. Kentaro Ishizu, Hiroshi Harada, “Fast Scanning Mechanism using Detection Probability in Cognitive Wireless Networks” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  241. Yohannes D. Alemseged, Chen Sun, Ha Nguyen Tran, Hiroshi Harada, “Distributed Spectrum Sensing with Two-Stage Detection for Cognitive Radio” IEEE 70th Vehicular Technology Conference Fall, 2009
  242. Kyoichi Iigusa, Jing Gao, Keren Li, Katsuyoshi Sato, Hiroshi Harada, “Improving gain of H-plane sectoral post-wall horn antenna for millimeter-wave communication by connecting tapered slots” Asia Pacific Microwave Conference (APMC), pp.1942-1945, 2009
  243. Mohammad Azizur Rahman, Chin-Sean Sum, Shigenobu Sasaki, Tuncer Baykas, Junyi Wang, Ryuhei Funada, Hiroshi Harada, Shuzo Kato, “Exact Error Probabilities for MRC in Frequency Selective Nakagami Fading with ISI, CCI and ACI” IEEE Wireless Communications and Networking Conference, pp.1-6, 2009
  244. Chen Sun, Hiroshi Harada, “Management Scheme and Optimal MAP Detection Threshold of Packet-based Cognitive Radio System” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  245. Yohannes D. Alemseged, Hiroshi Harada, Klaus Witrisal, “Detection and Identification of NBI for Multichannel UWB Autocorrelation Receivers” IEEE Wireless Communications and Networking Conference, 2009
  246. Junyi Wang, Zhou Lan, Chin-Sean Sum, Chang-Woo Pyo, Jing Gao, Tuncer Baykas, Mohammad Azizur Rahman, Ryuhei Funada, Fumihide Kojima, Ismail Lakkis, Hiroshi Harada, Shuzo Kato, “Beamforming Codebook Design and Performance Evaluation for 60GHz Wideband WPANs” IEEE 70th Vehicular Technology Conference Fall, pp.1-5, 2009
  247. Stanislav Filin, Hiroshi Harada, Homare Murakami, Kentaro Ishizu, Goh Miyamoto, Ha Nguyen Tran, Mikio Hasegawa, “IEEE 1900.4 generic procedures to realize Dynamic Spectrum Access use cases” IEEE EUROCON, pp.1910-1914, 2009
  248. Chin-Sean Sum, Ryuhei Funada, Junyi Wang, Tuncer Baykas, Mohammad Azizur Rahman, Hiroshi Harada, Shuzo Kato, “Error Performance and Throughput Evaluation of a Multi-Gbps Millimeter-Wave WPAN System in Multipath Environment in the Presence of Adjacent and Co-Channel Interference” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  249. Stanislav Filin, Hiroshi Harada, Homare Murakami, Kentaro Ishizu, Goh Miyamoto, “IEEE 1900.4 WG on architecture and enablers for optimized radio & spectrum resource usage: Overview of IEEE 1900.4 standard and P1900.4.1 and P1900.4a draft standards” International Conference on Ultra Modern Telecommunications & Workshops, pp.1-8, 2009
  250. Chin-Sean Sum, Zhou Lan, Ryuhei Funada, Junyi Wang, Tuncer Baykas, Mohammad Azizur Rahman, Hiroshi Harada, Shuzo Kato, “A Virtual Time-Slot Allocation Throughput Enhancement Scheme with Multiple Modulations for a Multi-Gbps Millimeter-Wave WPAN System” IEEE Wireless Communications and Networking Conference, pp.1-6, 2009
  251. Mikio Hasegawa, Taichi Takeda, Goh Miyamoto, Ha Nguyen Tran, Homare Murakami, Kentaro Ishizu, Stanislav Filin, Hiroshi Harada, “Design and Implementation of A Distributed Radio Resource Usage Optimization Algorithm for Heterogeneous Wireless Networks” IEEE 70th Vehicular Technology Conference Fall, 2009
  252. Mohammad Azizur Rahman, Shigenobu Sasaki, Junyi Wang, Tuncer Baykas, Chin-Sean Sum, Ryuhei Funada, Hiroshi Harada, Shuzo Kato, ”On Error Probabilities for DS-CDMA/MRC in Frequency Selective Nakagami Fading” IEEE International Conference on Communications Workshops, pp.1-6, 2009
  253. Kyoichi Iigusa, Keren Li, Katsuyoshi Sato, Hiroshi Harada, “Proposal and design of Yagi-Uda antenna for UHF-ITS mobile terminal” IEEE Antennas and Propagation Society International Symposium, 2009
  254. Peng-Yong Kong, Haiguang Wang, Yu Ge, Chee-Wei Ang, Jaya Shankar Pathmasuntharam, Wen Su, Ming-Tuo Zhou, Hiroshi Harada, “Distributed Adaptive Time Slot Allocation for WiMAX Based Maritime Wireless Mesh Networks” IEEE Wireless Communications and Networking Conference, pp.1-6, 2009
  255. Zhou Lan, Chin-Sean Sum, Junyi Wang, Tuncer Baykas, Jing Gao, Hiroshi Harada, Shuzo Kato, ”Deflect Routing for Throughput Improvement in Multi-Hop Millimeter-Wave WPAN System” IEEE Wireless Communications and Networking Conference, pp.1-6, 2009
  256. Peng-Yong Kong, Jaya Shankar Pathmasuntharam, Haiguang Wang, Yu Ge, Chee-Wei Ang, Wen Su, Ming-Tuo Zhou, Hiroshi Harada, ”A Routing Protocol for WiMAX Based Maritime Wireless Mesh Networks” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  257. Yohannes D. Alemseged, Chen Sun, Ha Nguyen Tran, Hiroshi Harada, “Distributed Spectrum Sensing for Cognitive Radios” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  258. Junyi Wang, Tuncer Baykas, Ryuhei Funada, Chin-Sean Sum, Mohammad Azizur Rahman, Zhou Lan, Hiroshi Harada, Shuzo Kato, “A SNR Mapping Scheme for ZF/MMSE Based SC-FDE Structured WPANs” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  259. Chang-Woo Pyo, Hiroshi Harada, Shuzo Kato, “A Predictive Channel Assignment Method (PCAM) for Interference Avoidance in IEEE 802.15.3 WPANs” IEEE 70th Vehicular Technology Conference Fall, 2009
  260. Zhou Lan, Chin-Sean Sum, Junyi Wang, Tuncer Baykas, Fumihide Kojima, Hiroyuki Nakase, Hiroshi Harada, Shuzo Kato, “Achieving Gbps Throughput for Millimeter-Wave WPAN with an Anti-Blocking Scheme Using Deflection Routing” IEEE 70th Vehicular Technology Conference Fall, 2009
  261. Yohannes D. Alemseged, Ha Nguyen Tran, Chen Sun, Hiroshi Harada, “Dual-Purpose Spectrum Sensor Using IEEE802.15.4a UWB PHY and Energy Detection” 18th International Conference on Computer Communications and Networks, pp.1-5, 2009
  262. Kenichi Takizawa, Shigeru Omori, Hiroshi Harada, Ryoichi Nakamura, Yoshihiro Muragaki, Hiroshi Iseki, “A feasibility study on image-based control of surgical robot using a 60-GHz wireless communication system” Annual International Conference of the IEEE Engineering in Medicine and Biology Society, pp.6255-6258, 2009
  263. Yohannes D. Alemseged, Hiroshi Harada, “Spectrum sensing for cognitive radio” IEEE Radio and Wireless Symposium (RWS), pp.356-359, 2009
  264. Chin-Sean Sum, Mohammad Azizur Rahman, Zhou Lan, Ryuhei Funada, Junyi Wang, Tuncer Baykas, Hiroshi Harada, Shuzo Kato, “A Space-Time Resource Management Scheme for Multi-Gbps Millimeter-Wave WPAN System” IEEE 70th Vehicular Technology Conference Fall, 2009
  265. Mohammad Azizur Rahman, Shigenobu Sasaki, Samia T. Islam, Tuncer Baykas, Chin-Sean Sum, Junyi Wang Ryuhei Funada, Hiroshi Harada, Shuzo Kato, “Analysis and Comparison of Inter-Symbol/Frame Interference in Pulsed DS- and Hybrid DS/TH-UWB Communications” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  266. Kentaro Ishizu, Hiroshi Harada, “A Load-Balancing Framework for Cognitive Wireless Network to Coexist with Legacy WiFi Systems” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  267. Jing Gao, Keren Li, Tomoaki Sato, Hiroshi Harada, “Novel dual polarized array antennas for 60GHz mmWPAN applications” IEEE Antennas and Propagation Society International Symposium, 2009
  268. Tomoshige Kan, Ryuhei Funada, Junyi Wang, Hiroshi Harada, Jun-ichi Takada, “MIMO Channel Capacity of a Measured Radio Channel for Outdoor Macro Cellular Systems at 3GHz-Band” IEEE 70th Vehicular Technology Conference Fall, 2009
  269. Chen Sun, Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada, “Cognitive Radio Sensing Architecture and a Sensor Selection Case Study” IEEE 69th Vehicular Technology Conference Spring, pp.1-5, 2009
  270. Chin-Sean Sum, Zhou Lan, Ryuhei Funada, Junyi Wang, Tuncer Baykas, Mohammad Azizur Rahman, Hiroshi Harada, Shuzo Kato, “Virtual Time-Slot Allocation Scheme for Throughput Enhancement in a Millimeter-Wave GBPS WPAN Cross Layer Design” IEEE International Conference on Communications, 2009
  271. Jing Gao, Keren Li, Tomoaki Sato, Junyi Wang, Hiroshi Harada, Shuzo Kato, “Implementation considerations of patch antenna array for 60GHz beam steering system applications” IEEE Radio and Wireless Symposium, (RWS), pp.35-38, 2009
  272. Hirokazu Sawada, Tomohide Tomatsu, Gen Ozaki, Hiroyuki Nakase, Shuzo Kato, Katsuyoshi Sato, Hiroshi Harada, “A Sixty GHz Intra-Car Multi-Media Communications System” IEEE 69th Vehicular Technology Conference, (VTC Spring), pp. 1-5, 2009
  273. Hirokazu Sawada, Hiroyuki Nakase, Shuzo Kato, Masahiro Umehira, Katsuyoshi Sato, Hiroshi Harada, “Polarization dependence in double directional propagation channel at 60GHz” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 3010-3014, 2009
  274. Stanislav Filin, Hiroshi Harada, Homare Murakami, Kentaro Ishizu, Goh Miyamoto, “IEEE draft standards P1900.4.1 and P1900.4a for heterogeneous type and spectrum sharing type cognitive radio systems” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009
  275. Junyi Wang, Zhou Lan, Ryuhei Funada, Hiroshi Harada, ”On scheduling and power allocation over multiuser MIMO-OFDMA: Fundamental design and performance evaluation in WiMAX systems” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 2752-2756, 2009
  276. Xueli An, Chin-Sean Sum, Ramjee Venkatesha Prasad, Junyi. Wang, Zhou Lan, Jing Wang, Ramin Hekmat, Hiroshi Harada, Ignas Niemegeers, ”Beam switching support to resolve link-blockage problem in 60 GHz WPANs” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 390-394, 2009
  277. Takeshi Matsumura, Masayoshi Esashi, Hiroshi Harada, Shuji Tanaka, ”Multi-band RF filter integrating different modes of AlN resonator by CMOS-compatible process” IEEE International Ultrasonics Symposium (IUS), pp. 2141-2144, 2009
  278. Yi Jiang, Keren Li, Jing Gao, Hiroshi Harada, “Antenna space diversity and polarization mismatch in wideband 60GHz-Millimeter-wave wireless system” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 1781-1785, 2009
  279. Kentaro Ishizu, Hiroshi Harada, “Detection of neighboring access points based on relative locations in spring model for Cognitive Wireless Networks” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 1611-1615, 2009
  280. Mikio Hasegawa, Akira Funatsu, Hiroshi Harada, “A distributed radio resource usage optimization algorithm to satisfy QoS requirements by neural network dynamics” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 2255-2259, 2009
  281. Ha Nguyen Tran, Mikio Hasegawa, Yoshitoshi Murata, Hiroshi Harada, “Representation of user satisfaction and fairness evaluation for user-centric dynamic spectrum access” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 838-842, 2009
  282. Chin-Sean Sum, Zhou Lan, Mohammad Azizur Rahman, Junyi Wang, Tuncer Baykas, Ryuhei Funada, Hiroshi Harada, Shuzo Kato, “A Multi-Gbps Millimeter-Wave WPAN System Based on STDMA with Heuristic Scheduling” IEEE Global Telecommunications Conference, 2009. GLOBECOM, 2009
  283. Yohannes D. Alemseged, Klaus Witrisal, Hiroshi Harada, “Improved data model of TR-UWB system using multichannel autocorrelation receivers under NBI” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 1008-1013, 2009
  284. Xueli An, Zhou Lan, Ramjee Venkatesha Prasad, Ramin Hekmat, Hiroshi Harada, Ignas Niemegeers, “Performance analysis of the frame aggregation mechanisms in IEEE 802.15.3c” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp.2095-2100, 2009
  285. Markus Mueck, George Dimitrakopoulos, Kostas Tsagkaris, Jens Gebert, Klaus Nolte, Stanislav Filin, Hiroshi Harada, Gianmarco Baldini, Jordi Perez-Romero, Oriol Sallent, Fernando Casadevall, Ari Ahtiainen, “ETSI Reconfigurable Radio Systems — Software Defined Radio and Cognitive Radio standards” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009
  286. Ming-Tuo Zhou, Hiroshi Harada, Jaya Shankar Pathmasuntharam, “An analysis model of DoA in maritime environment for ship-to-ship/shore wireless communications” 9th International Conference on Intelligent Transport Systems Telecommunications,(ITST), pp. 376-380, 2009
  287. Chen Sun, Yohannes D. Alemseged, Ha Nguyen Tran. Hiroshi Harada, “Power Control of Cognitive Radio System in Rayleigh Fading” IEEE Global Telecommunications Conference, GLOBECOM, 2009
  288. Junyi Wang, Zhou Lan, Chang-Woo Pyo, Tuncer Baykas, Chin-Sean Sum, Mohammad Azizur Rahman, Ryuhei Funada, Fumihide Kojima, Ismail Lakkis, Hiroshi Harada, Shuzo Kato, “Beam Codebook Based Beamforming Protocol for Multi-Gbps Millimeter-Wave WPAN Systems” IEEE Global Telecommunications Conference, GLOBECOM, 2009
  289. Ming-Tuo Zhou, Hiroshi Harada, Peng-Yong Kong, Chee-Wei Ang, Yu Ge, Jaya Shankar Pathmasuntharama, “A method to deliver AODV routing messages using WiMAX mesh MAC control messages in maritime wireless networks” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 1537-1541, 2009
  290. Chang-Woo Pyo, Hiroshi Harada, Shuzo Kato, “Throughput comparison of CSMA/CA and hybrid CSMA/CA-TDMA in IEEE 802.15.3c WPAN” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 385-389, 2009
  291. Chen Sun, Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada, “Power control of transmit diversity and beamforming under correlated fading” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 127-131, 2009
  292. Chin-Sean Sum, Xueli An, Zhou Lan, Tuncer Baykas, Junyi Wang, Ryuhei Funada, Mohammad Azizur Rahman, Hiroshi Harada, Shuzo Kato, “A synchronization-frame-aided interference mitigation mechanism for millimeter-wave WPAN” IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 380-384, 2009
  293. Junyi Wang, Chin-Sean Sum, Zhou Lan, Mohammad Azizur Rahman, Tuncer Baykas, Hiroshi Harada, “A Bit Loading Scheme for MIMO-OFDMA Systems with Adaptively Switching between Spatial Diversity and Multiplexing” WPMC2009, S17-3, 2009
  294. Hirokazu Sawada, Hiroyuki Nakase, Shuzo Kato, Masahiro Umehira, Katsuyoshi Sato, Hiroshi Harada, “Double Directional Propagation Channel in Office Environment at 60GHz” WPMC2009, S27-1, 2009
  295. Tuncer Baykas, Ryuhei Funada, Mohammad Azizur Rahman, Junyi Wang, Chin-Sean Sum, Hiroshi Harada, Shuzo Kato, “Frequency Offset Estimation Performance of Golay Sequences in 60 GHz WPANs” WPMC2009, S25-3, 2009
  296. Kentaro Ishizu, Homare Murakami, Goh Miyamoto, Stanislav Filin, Ha Nguyen Tran, Chen Sun,Yohannes D. Alemseged, Hiroshi Harada, “Mobile Wireless Router System for Seamless Deployment of Cognitive Wireless Technology” WPMC2009, S01-1, 2009
  297. Chen Sun,Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada, “On the Effect of Antenna Diversity to Cognitive Radio System in Fading Channel” WPMC2009, S01-4, 2009
  298. Ha Nguyen Tran, Mikio Hasegawa, Yoshitoshi Murata, Hiroshi Harada, “On the Fairness Evaluation of User-Centric Radio Resource Selection Scheme in Heterogeneous Wireless Networks”　WPMC2009, S07-1, 2009
  299. Chin-Sean Sum, Ryuhei Funada, Junyi Wang, Tuncer Baykas, Mohammad Azizur Rahman, Hiroshi Harada, Shuzo Kato, “The Impact of Filter on Millimeter-Wave WPAN with Inter-Modulation ACI” WPMC2009, S25-2, 2009
  300. Yohannes D. Alemseged, Ha Nguyen Tran, Chen Sun, Hiroshi Harada, “Using IEEE802.15.4a UWB Receiver for Distributed Spectrum Sensing” WPMC2009, S28-1, 2009
  301. Chen Sun, Ha Nguyen Tran, Yohannes D. Alemseged, Hiroshi Harada, “IEEE P1900.6 Standard for Sensing Information Exchange of Cognitive Radio System” WPMC2009, SP5-6 ,2009
  302.  Zhou Lan, Fumihide Kojima, Chang-Woo Pyo, Chin-Sean Sum, Junyi Wang, Tuncer Baykas, Hiroshi Harada, Shuzo Kato, “Realizing Gbps mmWave WPAN: A Tutorial on the MAC Enhancement of IEEE 802.15.3c” WPMC2009, S25-1, 2009
  303.  Stanislav Filin, Hiroshi Harada, Homare Murakami, Kentaro Ishizu, Goh Miyamoto, “Technical Overview of IEEE Standard 1900.4 for Cognitive Radio Systems in Heterogeneous Wireless networks” WPMC2009, SP5-5, 2009
  304. Mitsuhiro Shimozawa, Noriharu Suematsu, Hiroshi Harada, “RF-IC for multi-band multi-mode transceiver”, 2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, pp.3311-3315, 2009
  305. Chang-Woo Pyo, Hiroshi Harada, Shuzo Kato, “Throughput analysis and improvement of hybrid multiple access in IEEE mmWave-WPAN”, 2009 ACM International Wireless Communications and Mobile Computing Conference (IWCMC), pp.1203-1207, 2009
  306. Akira Funatsu, Taichi Takeda, Taro Kuroda, Mikio Hasegawa, Homare Murakami, Hiroshi Harada, “Application QoS Based Optimization of Henerogeneous Wireless Networks by Distributed and Autonomous Neural Network Dynamics”, International Symposium on Nonlinear Theory and Its Applications（NOLTA）, A1L-D-5, 2009
  307. Jing Gao, Keren Li, Yasuhisa Yamamoto, Hiroshi Harada, “pi-Phase Shifter Using Single RF MEMS SPDT Switch”, 2008 Asia Pacific Microwave Conference (APMC 2008), Vol. 1-5, No.C-2-77, pp. 2362 -2365, Dec. 2008
  308. Hiroshi Harada, “Research and development on cognitive radio/dynamic spectrum access technologies” IET Seminar on Cognitive Radio and Software Defined Radios: Technologies and Techniques, pp.1-6, 2008
  309. Hiroshi Harada, “A Feasibility Study on Software Defined Cognitive Radio Equipment” 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks, pp.1-12, 2008 
  310. Hiroshi Harada, “A small-size software defined cognitive radio prototype” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, pp.1-5, 2008
  311. Zhou Lan, Chang-Woo Pyo, Fumihide Kojima, Hiroshi Harada, Shuzo Kato, “On-demand device discovery enhancement of IEEE802.15.3 MAC for 60GHz WPAN system” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
  312. Ryuhei Funada, Tuncer Baykas, Chin-Sean Sum, Junyi Wang, Mohammad Azizur Rahman, Hiroshi Harada, Shuzo Kato, “Novel frame design methodology for multi-gigabit 60GHz WPAN systems” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
  313. Chin-Sean Sum, Ryuhei Funada, Junyi Wang, Tuncer Baykas, Ming Lei, Yoshinori Nishiguchi, Ryota Kimura, Yozo Shoji, Hiroshi Harada, Shuzo Kato, “Adjacent channel interference resistance of a multi-Gbps millimeter-wave WPAN system” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
  314. Katsuyoshi Sato, Shuzo Kato, Hiroshi Harada. Nakase, Hirokazu Sawada, “Measurement of the double directional propagation characteristics for millimeter wave WPAN” Asia-Pacific Microwave Conference, 2008
  315. Chang-Woo Pyo, Zhou Lan, Fumihide Kojima, Hiroshi Harada, Shuzo Kato, “MAC Enhancement for Gbps Throughput Achievement in Millimeter-Wave Wireless PAN Systems” IEEE Wireless Communications and Mobile Computing Conference, pp.189-194, 2008
  316. Tuncer Baykas, Ryuhei Funada, Junyi Wang, Chin-Sean Sum, Mohammad Azizur Rahman, Ryota Kimura, Zhou Lan, Hiroshi Harada, Shuzo Kato, “Improvement of Header Detection Rate in 60 GHz Single Carrier WPAN System” IEEE Wireless Communications and Mobile Computing Conference, pp.684-688, 2008
  317. Chin-Sean Sum, Mohammad Azizur Rahman, Shigenobu Sasaki, Hiroshi Harada, Shuzo Kato, “Cognitive interference-mitigation technique for hybrid DS-Multiband-UWB multiple access system” IEEE Radio and Wireless Symposium, pp.105-108, 2008
  318. Kentaro Ishizu, Homare Murakami, Goh Miyamoto, Ha Nguyen Tran, Stanislav Filin, Mikio Hasegawa, Yoshitoshi Murata, Hiroshi Harada, Shuzo Kato, “Design and Implementation of Cognitive Wireless Network based on IEEE P1900.4” 5th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks Workshops, SECON, pp.1-8, 2008
  319. Ming Lei, Ismail Lakkis, Tuncer Baykas, Chin-Sean Sum, Hiroshi Harada, Shuzo Kato, “Fixed Point Decoding Performance of Short-Length Structured LDPC Codes for SC-FDE Based 60-GHz WPAN (IEEE 802.15.3c)” IEEE 67th Vehicular Technology Conference, pp.1841-1845, 2008
  320. Ha Nguyen Tran, Mikio Hasegawa, Yoshitoshi Murata, Homare Murakami, Goh Miyamoto, Kentaro Ishizu, Hiroshi Harada, Shuzo Kato, “A user-centric access point selection scheme for cognitive wireless network” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
  321. Mohammad Azizur Rahman, Shigenobu Sasaki, Samia T. Islam, M. Asai, Hisakazu Kikuchi, Hiroshi Harada, Shuzo Kato, “On the performance of pulsed DS- and hybrid DS/TH-UWB multiple access systems in frequency selective Nakagami fading” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, pp.1-5, 2008
  322. Zhou Lan, Junyi Wang, Chin-Sean Sum, Tuncer Baykas, Chang-Woo Pyo, Fumihide Kojima, Hiroshi Harada, Shuzo Kato, ”Unequal Error Protection for Compressed Video Streaming on 60GHz WPAN System” IEEE Wireless Communications and Mobile Computing Conference, pp.689-693, 2008
  323. Stanislav Filin, Hiroshi Harada, Mikio Hasegawa, “Performance evaluation of dynamic spectrum assignment and access technologies” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
  324. Hirokazu Sawada, Kaoru Yaginuma, Masahiro Umehira, Katsuyoshi Sato, Shuzo Kato, Hiroshi Harada, “Non-line-of-sight propagation measurements at 60GHz for millimeter-waves WPAN”, 2008 Asia-Pacific Microwave Conference, 2008
  325. Ming-Tuo Zhou, Hiroshi Harada, Hai-Guang Wang, Chee-Wei Ang, Peng-Yong Kong, Yu Ge, Wen Su, Jaya Shankar Pathmasuntharam, “Multi-channel WiMAX Mesh networking and its practice in sea” 8th International Conference on ITS Telecommunications, pp. i-vi, 2008
  326. Stanislav Filin, Hiroshi Harada, Mikio Hasegawa, Shuzo Kato, ”QoS-guaranteed load-balancing dynamic spectrum access algorithm” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008
  327. Koji Tsutsumi, Fumiki Onoma, Jun Koide, Mikio Uesugi, Noriharu Suematsu, Hiroshi Harada, “A low spurious 400M–6GHz SiGe-MMIC Direct Conversion Transceiver using 2ƒLO LO switching configuration for cognitive radio”, 2008 IEEE Radio Frequency Integrated Circuits Symposium, pp.585-588, 2008
  328. Shintaro Shinjo, Koji Tsutsumi, Fumiki Onoma, Noriharu Suematsu, Hiroshi Harada, “High linearity SiGe-MMIC Q-MOD having self mixer current control circuit with output power detector for 0.4–5.8GHz cognitive radio transceiver”, 2008 IEEE Radio Frequency Integrated Circuits Symposium, 2008
  329. Stanislav Filin, Kentaro Ishizu, Homare Murakami, Hiroshi Harada, Goh Miyamoto, Ha Nguyen Tran, Shuzo Kato, Mikio Hasegawa, ”Dynamic Spectrum Assignment and Access Scenarios, System Architecture, Functional Architecture and Procedures for IEEE P1900.4 Management System” 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2008
  330. Chin-Sean Sum, Tuncer Baykas, Ming Lei, Yoshinori Nishiguchi, Ryota Kimura, Ryuhei Funada, Yozo Shoji, Hiroshi Harada, Shuzo Kato, “Performance of Trellis-Coded-Modulation for a Multi-Gigabit Millimeter-Wave WPAN System in the Presence of Hardware Impairments” IEEE International Wireless Communications and Mobile Computing Conference, pp.678-683, 2008
  331. Tuncer Baykas, Ming Lei, Chin-Sean Sum, Ryuhei Funada, Yoshinori Nishiguchi, Ryota Kimura, Junyi Wang, Azizur Rahman, Hiroshi Harada, Shuzo Kato, “Operation Range Estimation of Reed-Solomon Coded SC-FDE System in 60-GHz WPANs”, 2008 10th International Conference on Advanced Communication Technology, pp.167-170, 2008
  332. Mikio Hasegawa, Ha Nguyen Tran, Goh Miyamoto, Hiroshi Harada, Shuzo Kato, Yoshitoshi Murata, “User-Centric Optimum Radio Access Selection in Heterogeneous Wireless Networks Based on Neural Network Dynamics”, 2008 IEEE Wireless Communications and Networking Conference, pp.2747-2752, 2008
  333. Ming Lei, Ismail Lakkis, Chin-Sean Sum, Tuncer Baykas, Junyi Wang, Mohammad Azizur Rahman, Ryota Kimura, Ryuhei Funada, Yozo Shoji, Hiroshi Harada, Shuzo Kato, “Hardware Impairments on LDPC Coded SC-FDE and OFDM in Multi-Gbps WPAN (IEEE 802.15.3c) ” IEEE Wireless Communications and Networking Conference (WCNC 2008), pp.442-446, 2008
  334. Junyi Wang, Zhou Lan, Ryuhei Funada, Tuncer Baykas, Chin-Sean Sum, Ming Lei, Yoshinori Nishiguchi, Mohammad Azizur Rahman, Takuro Sato, Hiroshi Harada, Shuzo Kato, “A Feasible Frequency Domain Pre-Equalization Proposal Based on Cross Layer Design in 60GHz WPANs” IEEE Wireless Communications and Mobile Computing Conference, pp.672-677, 2008
  335. Ryota Kimura, Ryuhei Funada, Yoshinori Nishiguchi, Ming Lei, Tuncer Baykas, Chin-Sean Sum, Junyi Wang, Mohammad Azizur Rahman, Yozo Shoji, Hiroshi Harada, Shuzo Kato, “Golay sequence aided channel estimation for millimeter-wave WPAN systems” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, pp.1-5, 2008
  336. Ming Lei, Ismail Lakkis, Hiroshi Harada, Shuzo Kato, “MMSE-FDE Based on Estimated SNR for Single-Carrier Block Transmission (SCBT) in Multi-Gbps WPAN (IEEE 802.15.3c)” International Conference on Communications Workshops, pp.52-56, 2008
  337. Yoshitoshi Murata, Mikio Hasegawa, Homare Murakami, Hiroshi Harada, Shuzo Kato, “Architecture and business model of open heterogeneous mobile network” First ITU-T Kaleidoscope Academic Conference, pp. 143-150, 2008
  338. Yongxin Guo, Ming-Li Yee, Bin Luo, Ling Chuen Ong, Ming-Tuo Zhou, Hiroshi Harada, “Hybrid 60 GHz and 2.4 GHz WLAN radio-over-fiber system for efficient broadband signal distribution” Asia-Pacific Microwave Conference (APMC), pp.1-4, 2008
  339. Soodesh Buljore, Hiroshi Harada, Paul Houze, Kostas Tsagkaris, Vladimir Ivanov, Klaus Nolte, Tim Farnham, Oliver Holland, Makis Stamatelatos, “IEEE P1900.4 Standard: Reconfiguration of multi-radio systems” IEEE Region 8 International Conference on Computational Technologies in Electrical and Electronics Engineering, (SIBIRCON), pp. 413-417, 2008
  340. Soodesh Buljore, Vincent Merat, Hiroshi Harada, Stanislav Filin, Paul Houze, Kostas Tsagkaris, Vladimir Ivanov, Klaus Nolte, Tim Farnham, Oliver Holland, “IEEE P1900.4 System Overview on Architecture and Enablers for Optimised Radio and Spectrum Resource Usage” 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks (DySPAN), pp. 1-8, 2008
  341. Mikio Hasegawa, Tetsuo Kawamura, Ha Nguyen Tran, Goh Miyamoto, Yoshitoshi Murata, Hiroshi Harada, Shuzo Kato, “Decentralized optimization of wireless sensor network lifetime based on neural network dynamics” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, (PIMRC), pp. 1-5, 2008
  342. Jaya Shankar Pathmasuntharam, Peng-Yong Kong, Ming-Tuo Zhou, Yu Ge, Haiguang Wang, Chee-Wei Ang, Wen Su, Hiroshi Harada, “TRITON: High speed maritime mesh networks” IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, (PIMRC), 2008
  343. Stanislav Filin, Hiroshi Harada, Shuzo Kato, Mikio Hasegawa, “Fast and Efficient QoS-Guaranteed Dynamic Spectrum Access Algorithm,” WPMC2008, RO1-3, Sep. 2008 
  344. Goh Miyamoto, Mikio Hasegawa, Hiroshi Harada, “Information Collecting Framework for Heterogeneous Wireless Networks,” WPMC2008, ST7-3, Sep. 2008
  345. Kentaro Ishizu, Yoshitoshi Murata, Mikio Hasegawa, Ha Nguyen Tran, Goh Miyamoto, Homare Murakami, Stanislav Filin, Hiroshi Harada, Shuzo Kato, “Radio Map Platform for Efficient Terminal Handover in Cognitive Wireless Networks”, WPMC2008, RO4-4, Sep. 2008
  346. Masayuki Oodo, Noriyuki Soma, Hiroshi Harada, “Radio Propagation Experiments for Broadband Wireless Communication System in the VHF Band”, WPMC2008, ST4-4, Sep. 2008
  347. Yoshinori Nishiguchi, Ryuhei Funada, Yozo Shoji, Hiroshi Harada, Shuzo Kato, “WPAN applications and system performance”, Wireless Communcations: 2007 CNIT Thyrrenian Symposium, pp.195-200, 2008
  348. Mikio Hasegawa, Tetsuo Kawamura, Ha Nguyen Tran, Goh Miyamoto, Hiroshi Harada, Shuzo Kato, Yoshitoshi Murata, “Distributed Optimization of Lifetime of Wireless Sensor Networks based on Mutually Connected Neural Networks”, International Symposium on Nonlinear Theory and its Applications (NOLTA), pp.148-151, 2008
  349. Taichi Takeda, Taro Kuroda, Mikio Hasegawa, Hiroshi Harada, Shuzo Kato, Yoshitoshi Murata, “Autonomous and Decentralized Optimization for Fair Radio Resource Selection by Higher-Order Neural Networks”, International Symposium on Nonlinear Theory and its Applications (NOLTA), pp.456-459, 2008
  350. Hiroshi Harada, Homare Murakami, Kentaro Ishizu, Stanislav Filin, Yoshia Saito, Ha Nguyen Tran, Goh Miyamoto, Mikio Hasegawa, Yoshitoshi Murata, Shuzo Kato, “A Software Defined Cognitive Radio System: Cognitive Wireless Cloud” IEEE Global Telecommunications Conference (GLOBECOM), pp. 294-299, 2007
  351. Noriharu Suematsu, Koji Tsutsumi, Jun Koide, Mikio Uesugi, Hiroshi Harada, “0.4-5.2GHz SiGe-MMIC Direct Conversion Mixer for Cognitive Radio Receiver”, 2007 IEEE Radio and Wireless Symposium, pp.435-438, 2007
  352. Hiroshi Harada, “Software Defined Cognitive Radio Prototype toward IMT-Advanced Wireless Communication Systems” IEEE Radio and Wireless Symposium, pp.7-10, 2007
  353. Ryota Kimura, Ryuhei Funada, Hiroshi Harada, Shigeru Shimamoto, “A Highly Mobile SDM-OFDM System Using Reduced-Complexity-and-Latency Processing”, 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
  354. Hiroshi Harada, “A Software Defined Cognitive Radio Prototype” IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
  355. Ryuhei Funada, Hiroshi Harada, Yozo Shoji, Ryota Kimura, Yoshinori Nishiguchi, Ming Lei, Chang-soon Choi, Fumihide Kojima, Chang-Woo Pyo, Zhou Lan, Ismail Lakkis, Masahiro Umehira, Shuzo Kato, “A design of single carrier based PHY for IEEE 802.15.3c standard” IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
  356. Fumihide Kojima, Chang-Woo Pyo, Zhou Lan, Hiroshi Harada, Shuzo Kato, Hiroyuki Nakase, “Necessary Modifications on Conventional IEEE802.15.3b MAC to Achieve IEEE802.15.3c Millimeter Wave WPAN” IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
  357. Masahiro Kuroda, Kentaro Ishizu, Hiroshi Harada, Ryoichi Komiya, “A Study of Radio-information Services for Networks of Cognitive Radios”, 2007 2nd IEEE Workshop on Networking Technologies for Software Define Radio Networks, pp.32-39, 2007
  358. Masahiro Kuroda, Kentaro Ishizu, Hiroshi Harada, Ryoichi Komiya, “A Study of Radio-information Services for Networks of Cognitive Radios” 4th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, pp.662-669, 2007
  359. Ming Lei, Chang-Soon Choi, Ryuhei Funada, Hiroshi Harada, Shuzo Kato, “Throughput Comparison of Multi-Gbps WPAN (IEEE 802.15.3c) PHY Layer Designs under Non-Linear 60-GHz Power Amplifier” IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007
  360. Kyoichi Iigusa, Hiroshi Harada, Shuzo Kato, “Proposal and evaluation of reactively loaded inverted F antenna for cognitive wireless communication” IEEE Antennas and Propagation Society International Symposium, pp. 837-840, 2007
  361. Ming Lei, Ryuhei Funada, Hiroshi Harada, Shuzo Kato, “High-Data-Rate DPC-OF/TDMA Based on Multi-Layer STBC Coded MIMO-OFDM” IEEE Wireless Communications and Networking Conference, pp.938-942, 2007
  362. Kentaro Ishizu, Masahiro Kuroda, Hiroshi Harada, “Bullet-train Network Architecture for Broadband and Real-time Access” 12th IEEE Symposium on Computers and Communications, pp.241-248, 2007
  363. Kyoichi Iigusa, Hiroshi Harada, Shuzo Kato, Jiro Hirokawa, Makoto Ando, “Radio-wave transparent surface containing lines loaded with impedance at regular intervals” IEEE Antennas and Propagation Society International Symposium, pp.3960-3963, 2007
  364. Ming Lei, Ryuhei Funada, Hiroshi Harada, Shuzo Kato, “Subcarrier-Grouping Based Detection Schemes for Multi-Layer STBC Coded MIMO-OFDM” IEEE Wireless Communications and Networking Conference, pp.841-846, 2007
  365. Chang-Woo Pyo, Zhou Lan, Fumihide Kojima, Hiroshi Harada, Shuzo Kato, “A Novel Media Access Control for Gbps Data Transmission in Millimeter-Wave Wireless Systems,” WPMC2007, Tu-1F-7 pp.149- 152, Dec. 2007
  366. Ming Lei, Hiroshi Harada, “Performance Comparison of Low-Complexity Detection Schemes for V-BLAST Coded MIMO-OFDM” 3rd International Symposium on Wireless Communication Systems, pp.739-743, 2006
  367. Akihisa Yokoyama, Takashi Matsumura, Hiroshi Harada, “Implementation of Multi-channel Modern and Multi-channel Radio Broadcast Receiver on Reconfigurable Packet Routing-oriented Signal Processing Platform (RPPP)”, 2006 1st IEEE Workshop on Networking Technologies for Software Defined Radio Networks, pp.59-67, 2006
  368. Masao Otani, Hiroshi Harada, Ryuhei Funada, “A UHF (950 MHz) Band RFID Reader Compliant with Japanese Radio Law”, IECON 2006 – 32nd Annual Conference on IEEE Industrial Electronics, pp.4773-4778, 2006
  369. Ming Lei, Hiroshi Harada, “Comparison Study of Low-Complexity Detection Schemes Exploiting Subcarrier Correlation for V-BLAST OFDM” International Conference on Wireless Communications, Networking and Mobile Computing, pp.1-5, 2006
  370. Ming Lei, Hiroshi Harada, “Performance Comparison of Multi-Layer STBC OFDM and V-BLAST OFDM” IEEE 64th Vehicular Technology Conference, 2006
  371. Zhiheng Guo, Yi Wang, Lihua Li, Xiaofeng Tao, Ping Zhang, Hiroshi Harada, “A Hybrid Detection Algorithm for MIMO Systems”, 2006 International Conference on Communications, Circuits and Systems ICCCAS, Vol. 2, pp.883-887, 2006
  372. Kazunari Yokomakura, Seiichi Sampei, Hiroshi Harada, Norihiko Morinaga, “A Carrier Interferometry based Channel Estimation Technique for One-Cell Reuse MIMO-OFDM/TDMA Cellular Systems” IEEE 63rd Vehicular Technology Conference, pp.1733-1737, 2006
  373. Ming Lei, Hiroshi Harada, “Fast-Convergence SMI Adaptive Beamforming Based on Frequency-to-Time Pilot Transform for OFDM System” International Conference on Wireless Communications, Networking and Mobile Computing, pp.1-5, 2006
  374. Zhiheng Guo, Ping Zhang, Hiroshi Harada, “A Crosslayer Design with power control and AMC for Sub-band Based OFDM System”, 2006 First International Conference on Communications and Networking in China, 2006
  375. Ryota Kimura, Ryuhei Funada, Hiroshi Harada, Shigeru Shimamoto, “Multiple-QR-Decomposition Assisted Group Detection for Reduced-Complexity-and-Latency MIMO-OFDM Receivers” 17th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, pp.1-5, 2006
  376. Ming Lei, Hiroshi Harada, “Low-Complexity Detection Exploiting Subcarrier Correlation in Multi-Layer STBC OFDM” 17th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, pp.1-6, 2006
  377. Ryuhei Funada, Hiroshi Harada, Masao Otani, “Measurement of 3GHz-band Radio Propagation in Macro Cellular Environments” 17th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, pp.1-5, 2006
  378. Ming Lei, Hiroshi Harada, “MIMO-OFDM based Evolution Schemes for DPC-OF/TDMA” 17th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, pp.1-5, 2006
  379. Masafumi Moriyama, Hiroshi Harada, Seiichi Sampei, Ryuhei Funada, “A novel method of estimating desired signal to undesired signal power ratio for one-cell-frequency-reuse SIMO/MIMO-OF/TDMA systems” IEEE Wireless Communications and Networking Conference (WCNC 2006), vol.4, pp.1836-1841, 2006
  380. Kyoichi Iigusa, Katsuyoshi Sato, Hiroshi Harada, Shuzo Kato, “Design of a Slim Electronically Steerable Parasitic Array Radiator Antenna in the 2.4-GHz Band,” WPMC2006, T3-4-2 pp.204- 208, Sep. 2006
  381. Ryuhei Funada, Hiroshi Harada, Masao Otani, “Radio Propagation Measurement of Candidate Frequency Band for the 4th Generation Mobile Communication Systems,” WPMC2006, W3-4-4 pp.1023- 1027, Sep. 2006
  382. Fumihide Kojima, Hiroshi Harada, “Resource Management for VHF Band Based Wireless Ad-Hoc Network,” WPMC2006, T2-6-3 pp.1108- 1112, Sep. 2006
  383. Hiroshi Harada, “Software defined radio prototype toward cognitive radio communication systems” First IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, pp.539-547, 2005
  384. Hiroshi Harada, Chang-Jun Ahn, Satoshi Takahashi, “100Mbps and beyond hotspot communication prototypes for next generation mobile communication systems” IEEE International Conference on Personal Wireless Communications, pp.24-28, 2005
  385. Hiroshi Harada, Chang-Jun Ahn, Yukiyoshi Kamio, Seiichi Sampei, “Dynamic Parameter Controlled OF/TDMA for Beyond 3G Cellular Communication Systems,” WPMC2005, MA6-4 pp.VI-354 – VI-550, Sep. 2005
  386. Hiroshi Harada, “Multi-Mode Multi-Service Software Radio Toward Cognitive Radio Communication Systems,” WPMC2005, MA6-5 pp.VI-360 – VI-551, Sep. 2005
  387. Ming Lei, Hiroshi Harada, “A MIMO-OFDM based Wireless Access Scheme Supporting Data Transmission beyond 1 Gbps” 16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.1, pp.216-220, 2005
  388. Chang-Jun Ahn, Hiroshi Harada, “Superimposed Frequency Symbol Based Adaptive Downlink OFDM with Frequency Spreading and Equalization” Asia-Pacific Conference on Communications (APCC), pp.1608-1072, 2005
  389. Ming Lei, Hiroshi Harada, “Decreasing transmit power by adaptive loading for ultra high-data-rate OFDM system” IEEE 61th Vehicular Technology Conference, vol.3, pp.1812-1816, 2005
  390. Ming Lei, Hiroshi Harada, “Low-density parity-check (LDPC) coded ultra high-data-rate OFDM system in frequency-selective fading” IEEE 61th Vehicular Technology Conference, vol.3, pp.1590-1594, 2005
  391. Chang-Jun Ahn, Satoshi Takahashi, Hiroshi Harada, Yukiyoshi Kamio, “Enhancement of MLD for SDM/OFDM using power imbalance of polarization and pre-phase distortion scheme” IEEE International Conference on Personal Wireless Communications, pp.104-108, 2005
  392. Chang-Jun Ahn, Satoshi Takahashi, Hiroshi Harada, “Adaptive subcarrier block modulation with differentially modulated pilot symbol assistance for downlink OFDM using uplink delay spread” 16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.2, pp.1125-1129, 2005
  393. Kazunari Yokomakura, Seiichi Sampei, Hiroshi Harada, Norihiko Morinaga, “A Channel Estimation Technique for Dynamic Parameter Controlled – OF/TDMA Systems” 16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.1, pp.644-648, 2005
  394. Hidekazu Gomi, Hiroshi Harada, Shoji Shinoda, “Performance Evaluation of Dynamic Parameter Controlled OF/TDMA Based on PR-DSMA,” 16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.3, pp.1920-1924, 2005
  395. Satoshi Takahashi, Chang-Jun Ahn, Hiroshi Harada, Yukiyoshi Kamio, “Stochastic determination method of substream modulation levels for MIMO eigenbeam space division multiplexing” IEEE International Conference on Personal Wireless Communications, pp.343-347, 2005
  396. Ryota Kimura, Ryuhei Funada, Hiroshi Harada, Shigeru Shimamoto, “A Complexity-Reduced Time Alignment Control with a 2-Step Precedence Path Detection in Uplink Dynamic Parameter Controlled OF/TDMA”, WPMC2005, WA22-1 pp.VII-1122 – pp.VII-1126, Sep. 2005
  397. Kazuyuki Shimezawa, Hiroshi Harada. Hiroshi Shirai, “Impact of the Gain/Phase Imbalance Between I and Q Channels for the DPC-OF/TDMA System”, WPMC2005, TA28-7 pp.VII-940 – VII-944, Sep. 2005
  398. Hidekazu Gomi, Hiroshi Harada, Shoji Shinoda, “Performance Evaluation of Dynamic Parameter Controlled OF/TDMA Based on PR-DSMA”, WPMC2005, WA22-3 pp.VII-1132 – VII-1141, Sep. 2005
  399. Chang-Jun Ahn, Satoshi Takahashi, Hiroshi Harada, “Throughput Enhancement with Differentially Modulated Pilot Symbol Assisted Subcarrier Block Modulation Using Uplink Delay Spread for Adaptive Downlink OFDM”, WPMC2005, TM8-2 pp.VII-877 – VII-881, Sep. 2005
  400. Hiroshi Harada, “Software defined radio prototype for W-CDMA and IEEE802.11a wireless LAN” IEEE 60th Vehicular Technology Conference (VTC2004-Fall), vol.6, pp.3919-3924, 2004
  401. Hiroshi Harada, Chang-Jun Ahn, Satoshi Takahashi, Yukiyoshi Kamio, Seiichi Sampei, “Dynamic parameter controlled orthogonal frequency and time division multiple access” 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.4, pp.2648-2652, 2004
  402. Hiroshi Harada, Chang-Jun Ahn, Satoshi Takahashi, “Experimental performance analysis of parallel communicated PR-DSMA protocol for 100 Mbps and beyond wireless access systems” IEEE 60th Vehicular Technology Conference (VTC2004-Fall), vol.7, pp.4978-4982, 2004
  403. Hiroshi Harada, Rika Matsumiya, Hidekazu Gomi, “A Point-to-Multipoint Wireless Access Protocol for Dynamic Parameter Controlled OF/TDMA” WPMC2004, WA6-9 pp.V3-387- V3-391, Sep. 2004
  404. Ming Lei, Ping Zhang, Hiroshi Harada, Hiromitsu Wakana, “Coded frequency-domain link adaptation scheme for OFDM in TDD mode” IEEE 60th Vehicular Technology Conference, vol.2, pp.1053-1057, 2004
  405. Ming Lei, Hiroshi Harada, Hiromitsu Wakana, Ping Zhang, “An adaptive power distribution algorithm for improving spectral efficiency in OFDM” IEEE Global Telecommunications Conference, vol.6, pp.3716-3720, 2004
  406. Ming Lei, Ping Zhang, Hiroshi Harada, Hiromitsu Wakana, “Adaptive beamforming based on frequency-to-time pilot transform for OFDM” IEEE 60th Vehicular Technology Conference (VTC2004-Fall), vol.1, pp.285-289, 2004
  407. Ming Lei, Hiroshi Harada, Hiromitsu Wakana, Ping Zhang, “Performance study on frequency-domain link adaptation in IEEE 802.11a wireless LAN” 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.1, pp.83-87, 2004
  408. Ming Lei, Hiroshi Harada, Hiromitsu Wakana, Ping Zhang, “Combination of adaptive beamforming and adaptive loading for OFDM packet transmission” 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.2, pp.1215-1219, 2004
  409. Ming Lei, Ping Zhang, Hiroshi Harada, Hiromitsu Wakana, “Adaptive loading based on frequency-selective fading estimation for ultra high-data-rate OFDM system” IEEE 60th Vehicular Technology Conference (VTC2004-Fall), vol.1, pp.616-620, 2004
  410. Ming Lei, Ping Zhang, Hiroshi Harada, Hiromitsu Wakana, “LMS adaptive beamforming based on pre-FFT combining for ultra high-data-rate OFDM system” IEEE 60th Vehicular Technology Conference (VTC2004-Fall), vol.5, pp.3664-3668, 2004
  411. Chang-Jun Ahn, Satoshi Takahashi, Hiroshi Harada, “Differential modulated pilot symbol assisted adaptive OFDM for reducing the MLI” IEEE Region 10 Conference (TENCON 2004), vol. B, pp.577-580, 2004
  412. Satoshi Takahashi, Hiroshi Harada, Chang-Jun Ahn, Yukiyoshi Kamio, “Site-dependent BER due to MIMO beamforming predicted by using ray tracing” IEEE Region 10 Conference (TENCON 2004), vol. C, pp.204-207, 2004
  413. Ming Lei, Hiroshi Harada, Hiromitsu Wakana, Ping Zhang, “A coded frequency-domain link adaptation scheme for OFDM transmission in TDD mode” 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.3, pp.2082-2086, 2004
  414. Ming Lei, Ping Zhang, Hiroshi Harada, Hiromitsu Wakana, “A combinational scheme of pre-FFT adaptive beamforming and frequency-domain adaptive loading for OFDM” IEEE 60th Vehicular Technology Conference, vol.1, pp.290-294, 2004
  415. Ryuhei Funada, Hiroshi Harada, Yukiyoshi Kamio, Shoji Shinoda, “A Channel Estimation Method for a Highly Mobile OFDM Wireless Access System,” WPMC2004, WM6-5 pp.V3-151- V3-156, Sep. 2004.
  416. Ryota Kimura, Ryuhei Funada, Hiroshi Harada, Shoji Shinoda, “A Complexity Reduction Scheme of Time Alignment Control for Uplink Dynamic Parameter Controlled OF/TDMA,” WPMC2004 TM1-5 p.V2-21-p.V2-25, Sep. 2004
  417. Toshiyuki Nakanishi, Seiichi Sampei, Hiroshi Harada, Norihiko Morinaga, “An OFDM Based Adaptive Modulation Scheme Employing Variable Coding Rate in Dynamic Parameter Controlled OF/TDMA Systems,” WPMC2004 WM2-3 pp. V3-34- V3-38, Sep. 2004 
  418. Satoshi Takahashi, Hiroshi Harada, Chang-Jun Ahn, Yukiyoshi Kamio, “Path Loss Dependence of Delay Spread in MIMO Transmission,” WPMC2004, MA1-3 pp.V1-10- V1-13, Sep. 2004
  419. Wang Ying, Tian Wenguang, Zhang Ping, Hiroshi Harada, “Two-dimensional resource allocation for OFDM/TDMA microcellular networks,” IEEE 60th Vehicular Technology Conference, vol.5, pp.3452-3456, 2002
  420. Kazuyuki Shimezawa, Hiroshi Harada, Hiroshi Shirai, “Performance Evaluation of a CDM Transmission Scheme Based on Sequences with Zero Cross-Correlation Characteristics,” WPMC2004, WM6-6 pp.V3-157- V3-161, Sep. 2004
  421. Kazuyuki Shimezawa, Hiroshi Harada, Hiroshi Shirai, ” Cyclic shifted-and-extended codes based on almost perfect autocorrelation sequences for CDM transmission scheme,” IEEE 60th Vehicular Technology Conference, vol.7, pp.5087-5091, 2004
  422. Ryuhei Funada, Hiroshi Harada, Shoji Shinoda, “Performance improvement of decision-directed channel estimation for DPC-OF/TDMA in a fast fading environment” IEEE 60th Vehicular Technology Conference, vol.7, pp.5125-5129, 2004
  423. Masaru Koshimizu, Ryuhei Funada, Hiroshi Harada, Hiroshi Shirai, “A new co-channel interference estimation method for the downlink frame of DPC-OF/TDMA” IEEE 60th Vehicular Technology Conference, vol.7, pp.5096-5100, 2004
  424. Ryota Kimura, Ryuhei Funada, Hiroshi Harada, Shoji Shinoda, ” A novel time alignment control for uplink dynamic parameter controlled OF/TDMA,” 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.4, pp.2337-2341, 2003
  425. Chang-Jun Ahn, Yukiyoshi Kamio, Satoshi Takahashi, Hiroshi Harada, “Reverse link performance improvement for an wideband OFDM using Alamouti coded heterogeneous polarization antennas” Ninth International Symposium on Computers and Communications (ISCC2004), vol.2, pp.702-707, 2004
  426. Kenya Yonezawa, Toshiyuki Maeyama, Hisato Iwai, Hiroshi Harada, ” Path loss measurement in 5 GHz macro cellular systems and consideration of extending existing path loss prediction methods,” 2004 IEEE Wireless Communications and Networking Conference, vol.1, pp.279-283, 2004
  427. Hiroshi Harada, “100 Mbps and beyond point-to-multipoint ultra high-speed radio access system: concept and fundamental experimental results” IEEE 58th Vehicular Technology Conference, vol.3, pp.1874-1879, 2003
  428. Hiroshi Harada, Masayuki Fujise, Hiroki Nakamura, Tetsushi Ikegami, “A new flexible symbol-timing synchronization method for software defined radio” 14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications (PIMRC 2003), vol.1, pp.124-129, 2003
  429. Masugi Inoue, Masahiro Kuroda, Hiroyuki Morikawa, Masayuki Fujise, Hiroshi Harada, Hiroyo Ogawa, Hiromitsu Wakana, Fumiyuki Adachi, “CRL’s R&D activity towards beyond 3G era-new generation mobile network project” International Conference on Communication Technology, vol.1, pp.1-4, 2003
  430. Ryota Kimura, Ryuhei Funada, Hiroshi Harada, Shoji Shinoda, Masayuki Fujise, ” A new simple timing synchronization method by subtraction process for OFDM packet transmission systems,” 14th IEEE Proceedings on Personal, Indoor and Mobile Radio Communications (PIMRC 2003), vol.1, pp.526-530, 2003
  431. Akihito Saito, Hiroshi Harada, Atsuhiro Nishikata, ” Development of band pass filter for ultra wideband (UWB) communication systems,” IEEE Conference on Ultra Wideband Systems and Technologies (UWBST 2003), pp.76-80, 2003
  432. Kazuyuki Shimezawa, Hiroshi Harada, Hiroshi Shirai, ” A CDM transmission scheme with cancellation technique for accumulated cross-correlation values,” IEEE 58th Vehicular Technology Conference, vol.5, pp.3358-3362, 2003
  433. Hiroshi Harada, Masayuki Fujise, “A new small-size multi-mode and multi-task software radio prototype for future intelligent transport systems” IEEE 56th Vehicular Technology Conference (VTC Fall 2002), vol.4, pp.2366-2370, 2002
  434. Kazuyuki Shimezawa, Hiroshi Harada, Hiroshi Shirai, Masayuki Fujise,  ” A high-speed DSRC system assisted by an overfill CDM for future seamless road-vehicle communication systems,” IEEE 56th Vehicular Technology Conference (VTC Fall 2002), vol.3, pp.1307-1311, 2002
  435. Ryuhei Funada, Hiroshi Harada, Yukiyoshi Kamio, Shoji Shinoda, Masayuki Fujise, “A high-mobility packet transmission scheme based on conventional standardized OFDM formats” IEEE 56th Vehicular Technology Conference, vol.1, pp.204-208, 2002
  436. Fumihide Kojima, Hiroshi Harada, Masayuki Fujise, “System configuration for private mobile network using slotted-ALOHA based autonomous packet routing”, The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.4, pp.1947-1951, 2002
  437. Makoto Honda, Hiroshi Harada, Masayuki Fujise, “Design of fault-tolerant digital filters based on redundant residue number arithmetic for over-the-air reconfiguration in software radio communication systems” IEEE 55th Vehicular Technology Conference (VTC Spring 2002), vol.1, pp.280-284, 2002
  438. Hiroshi Harada, Katsuyoshi Sato, Masayuki Fujise, “A radio-on-flber based millimeter-wave road-vehicle communication system for future intelligent transport system – Effect of cell size -” IEEE 54th Vehicular Technology Conference (VTC Fall 2001), vol.4, pp.2630-2634, 2001
  439. Hiroshi Harada, Masayuki Fujise, Mitsuhiko Mizuno, “Multimedia integrated and seamless network by a new multiservice terminal” IEEE 54th Vehicular Technology Conference, vol.4, pp.2574-2578, 2001
  440. Makoto Honda, Hiroshi Harada, Masayuki Fujise, “Efficient configuration data transmission scheme for FPGA-based downloadable software radio communication systems” IEEE 54th Vehicular Technology Conference, vol.3, pp.1388-1392, 2001
  441. Ryuhei Funada, Hiroshi Harada, Yukiyoshi Kamio, Shoji Shinoda, Masayuki Fujise, “A New Amplitude and Phase Compensation Scheme under Fast Fading Environment for OFDM Packet Transmission Systems” IEEE 54th Vehicular Technology Conference, vol.4, pp.2093-2097, 2001
  442. Makoto Okita, Hiroshi Harada, Masayuki Fujise, “A New Access Protocol in Radio-on-fiber based Millimeter-wave Road-vehicle Communication Systems” IEEE 54th Vehicular Technology Conference (VTC Fall 2001), vol.4, pp.2178-2182, 2001
  443. Ryo Sawai, Hiroshi Harada, Hiroshi Shirai, Masayuki Fujise, “A feasibility of an adaptive sampling processing method for software defined radio” IEEE 53rd Vehicular Technology Conference (VTC Spring 2001), vol.3, pp.1892-1896, 2001
  444. Hiroshi Harada, Masayuki Fujise, “Field experiments of a high mobility and broadband mobile communication system based on a new multicode transmission scheme for future intelligent transport systems” IEEE 51th Vehicular Technology Conference, vol.1, pp.501-506, 2000
  445. Ryo Sawai, Hiroshi Harada, Hiroshi Shirai, Masayuki Fujise, “Adaptive symbol timing synchronization method based on maximum likelihood estimation for the realization of multi-mode and multi-service software radio”, VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference(Cat. No.00CH37026), pp.1276-1280, 2000
  446. Fumihide Kojima, Hiroshi Harada, Masayuki Fujise, “Adaptive sub-carriers control scheme for OFDM cellular systems” IEEE 51th Vehicular Technology Conference, vol.2, pp.1065-1069, 2000
  447. Fumihide Kojima, Hiroshi Harada, Masayuki Fujise, “An autonomous relay access scheme for inter-vehicle communication network”, The 11th IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC 2000), vol.2, pp.974-978, 2000
  448. Ryo Sawai, Hiroshi Harada, Hiroshi Shirai, Masayuki Fujise “General-purpose symbol rate and symbol timing estimation method by using multi-resolution analysis based on wavelet transform for multimode software radio” IEEE 51st Vehicular Technology Conference, vol.2, pp.501-506, 2000
  449. Hiroshi Harada, Masayuki Fujise “Experimental performance analysis of OCDM radio transmission system based on cyclic modified M-sequences for future intelligent transport systems” IEEE 50th Vehicular Technology Conference, vol.2, pp.764-769, 1999
  450. Takako Yamamura, Hiroshi Harada, “High mobility OFDM transmission system by a new channel estimation and ISI cancellation scheme using characteristics of pilot symbol inserted OFDM signal” IEEE 50th Vehicular Technology Conference, vol.1, pp.319-323, 1999
  451. Ryo Sawai, Hiroshi Harada, Hiroshi Shirai, Masayuki Fujise, “General-purpose symbol rate and symbol timing estimation method by using multi-resolution analysis based on wavelet transform for multimode software radio” IEEE 50th Vehicular Technology Conference, vol.4, 1999
  452. Hiroshi Harada, “OCDM: a new multicode CDM radio transmission system based on cyclic modified M-sequences-performance evaluation using prototype” IEEE 49th Vehicular Technology Conference, vol.3, pp.1819-1825, 1999
  453. Hiroshi Harada, “A feasibility study of 16QAM-OFDM transmission scheme under the standard model for the multimedia mobile access communication systems” 10th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.3, pp.1819-1825, 1999
  454. Hiroshi Harada, Naoyuki Mineo, Masayuki Fujise, “A feasibility study of fiber-optic radio transmission system over IM/DD digital optical transmission network” International Topical Meeting on Microwave Photonics, vol.1, pp.205-208, 1999
  455. Masayuki Fujise, Hiroshi Harada, “An experimental study on multi-service radio on fiber transmission system for ITS road-vehicle communications” International Topical Meeting on Microwave Photonics, vol.1, pp.261-264, 1999
  456. Hiroshi Harada, Ramjee Prasad, “Cyclic extended spread coded multicarrier CDMA/TDD transmission scheme for wireless broadband multimedia communications” IEEE 48th Vehicular Technology Conference, vol.3, pp.1899-1904, 1998
  457. Dusan Matic, Hiroshi Harada, Ramjee Prasad, “Indoor and outdoor frequency measurements for mm-waves in the range of 60GHz” IEEE 48th Vehicular Technology Conference, vol.1-3, pp.567-571, 1998
  458. Tero Ojanpera, Ramjee Prasad, Hiroshi Harada, “Qualitative comparison of some multiuser detector algorithms for wideband CDMA” IEEE 48th Vehicular Technology Conference, vol.1, pp.46-50, 1998
  459. Hiroshi Harada, “Multi-mode software radio system by parameter controlled and telecommunication toolbox embedded digital signal processing chipset” ACTS mobile communication sumit, pp.115-120, 1998
  460. Ami Kanazawa, Tsukasa Iwama, Hiroshi Harada, Naoya Tsuzuki, Naoki Ichikawa, “Experimental investigation of adaptive zone configuration system by using a circular 8-element array antenna” IEEE 48th Vehicular Technology Conference, vol.2, pp.1166-1170, 1998
  461. Naoki Ichikawa, Ami Kanazawa, Hiroshi Harada, Shoji Shinoda, “Performance evaluation of adaptive zone configuration system” Ninth IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, vol.3, pp.1453-1457, 1998
  462. Hiroshi Harada, Ramjee Prasad, “A new multi-carrier CDMA/TDD transmission scheme based on cyclic extended spread code for 4th generation mobile communication system” IEEE International Conference on Personal Wireless Communications, pp. 319-323, 1997
  463. Hiroshi Harada, Gang Wu, Kazumasa Taira, Yoshihiro Hase, Hideichi Sasaoka, “Parallel transmission scheme using cyclic modified M-sequence CDM for broadband mobile communications” IEEE International Conference on Communications (ICC’97), vol.2, pp.929-933, 1997
  464. Naoyuki Oda, Hiroshi Harada, Iwao Sasase, Yoshihiro Hase, “Performance analysis of a multi-code CDM transmission scheme based on cyclic extended spread code as a extension of 3rd generation CDMA system”, 1997 IEEE International Conference on Personal Wireless Communications, pp.338-343, 1997
  465. Hiroshi Harada, Ramjee Prasad, “Performance analysis of an OFDM based wireless ATM communication system” The 8th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC ’97), Vol.3, pp.1095-1099, 1997
  466. Gang Wu, Hiroshi Harada, Kazumasa Taira, Yoshihiro Hase, “An integrated transmission protocol for broadband mobile multimedia communication systems” IEEE 47th Vehicular Technology Conference, vol.3, pp.1346-1350, 1997
  467. Hiroshi Harada, Gang Wu, Kazuma Taira, Yoshihiro Hase, Hideichi Sasaoka, “A new multi-code high speed mobile radio transmission scheme using cyclic modified M-sequence”, 1997 IEEE 47th Vehicular Technology Conference, Vol. 3, pp.1709-1713, 1997
  468. Hiroshi Harada, Ramjee Prasad, “Performance analysis of a new multi-code and multi-carrier hybrid transmission scheme for future broadband mobile communication systems”, Multi-Carrier Spread-Spectrum, pp.41-48, 1997
  469. Kazumasa Taira, Shinya Sekizawa, Gang Wu, Hiroshi Harada, Yoshihiro Hase, “Propagation loss characteristics for microcellular mobile communications in microwave band” IEEE International Conference on Universal Personal Communications, vol.2, pp. 842-846, 1996
  470. Gang Wu, Kazumasa Taira, Hiroshi Harada, Mitsuhiko Mizuno, Kaiji Mukumoto, Akira Fukuda, “An R-ISMA integrated voice/data wireless information system with different packet generation rates” IEEE International Conference on Communications, vol.3, pp.1263-1269, 1996
  471. Katsutoshi Tsukamoto, Hiroshi Harada, Satoshi Kajiya, Shozo Komaki, Norihiki Morinaga, “TDM Intercell Connection Fiber-Optic Bus Link for Personal Radio Communication Systems” 1994 Asia-Pacific Microwave Conference, pp. 1039-1042, Dec. 1994
  472. Shozo Komaki, Katsutoshi Tsukamoto, Minoru Okada, Hiroshi Harada, “Proposal of Radio High-way Networks for future multimedia-personal wireless communications”1994 IEEE International Conference on Personal Wireless Communications, pp. 204-208, 1994
  473. Shozo Komaki, Katsutoshi Tsukamoto, Minoru Okada, Hiroshi Harada, “Network Considerations on Fiber Optic Microcellular Radio Systems” 24th European Microwave Conference, pp. 46-51, Sept. 1994
  474. Hiroshi Harada, Hee Jin Lee, Shozo Komaki, Noriihiko Morinaga, “Consideration of Modulation Method for Fiber to the Area System” Asia-Pacific Conference on Communications, pp. 910-914, Jan. 1993

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