Yuyuan Chang and Kazuhiko Fukawa (Institute of Science Tokyo), “PAPR Reduction for OFDM Mobile Wireless Communications by Constant-Amplitude Signal Decomposition,” IEEE Access, vol.13, pp. 54672-54685, March 2025.
Zijie Liang, Kazuhiko Fukawa, Yuyuan Chang (Institute of Science Tokyo), “Slotted Unsourced Random Access Using Massive MIMO over Frequency Selective Channels,” IEICE Transactions on Communications, vol. E108-B, no. 5, pp. 640-655, May 2025.
Kohei Nozaki, Yuyuan Chang, Kazuhiko Fukawa (Institute of Science Tokyo), Daichi Hirahara (Japan Aerospace Exploration Agency), “Multiuser Detection with Accurate Channel Estimation for Collided AIS Packets,” IEICE Transactions on Communications, vol.E108-B, no.2 pp.152-163, February 2025.
International Conference
Hao Jia (Institute of Science Tokyo), Yuchen Wu (The University of Tokyo), Gan Srirutchataboon (Institute of Science Tokyo), and Kazuhiko Fukawa (Institute of Science Tokyo), “Pilot-based PSC Fractional Channel Estimation for Self-Adaptive AFDM Communications,” 2025 30th Asia-Pacific Conference on Communications (APCC), Osaka, Japan, November 2025, pp. 1-6.
Zijie Liang (Institute of Science Tokyo), Binbin Yang (Sun Yat-sen University), Yun Li (The University of Tokyo), and Kazuhiko Fukawa (Institute of Science Tokyo), “Unsourced Random Access Using Transformer over Massive MIMO Time-variant Channels,” 2025 30th Asia-Pacific Conference on Communications (APCC), Osaka, Japan, November 2025, pp. 1-6.
Domestic Conference
Shuxuan Wang, Kazuhiko Fukawa (Institute of Science Tokyo), and Satoshi Suyama (NTT DOCOMO), “Real-Zero Based Frequency Down-Converter and Signal Detector for OFDM Wireless Communications,” IEICE Society Conference, A-8-15, September 2025.
Zeyu Chen, Gan Srirutchataboon, and Fukawa Kazuhiko (Institute of Science Tokyo), “Parameter Estimation of Intelligent Reflecting Surface by Reinforcement Learning for Wireless Communications,” IEICE Society Conference, B-5A-08, September 2025.
Zebang Deng, Kazuhiko Fukawa (Institute of Science Tokyo), and Satoshi Suyama (NTT DOCOMO), “Constant-Amplitude OFDM with Beamforming and Phase-Noise Mitigation for Millimeter-Wave Communications,” IEICE Society Conference, B-5A-52, September 2025.
Zijie Liang (Institute of Science Tokyo), Binbin Yang (Sun Yat-sen University), Yun Li (The University of Tokyo), and Kazuhiko Fukawa (Institute of Science Tokyo), “Unsourced Random Access Employing Deep Learning over Time-Variant Channels,” IEICE Society Conference, B-5B-31, September 2025.
Zeyu Chen, Gan Srirutchataboon, and Kazuhiko Fukawa (Institute of Science Tokyo), “Parameter Estimation of Intelligent Reflecting Surface by Deep Reinforcement Learning for Wireless Communications,” IEICE Technical Report, vol. 125, no. 163, RCS2025-104, pp. 37-42, August 2025.
Liu He (Institute of Science Tokyo), “Iterative Joint Equalization and Channel Decoding for Faster-Than-Nyquist Signals over Fading Channels,” IEICE General Conference, B-5A-01, March 2025.
Hao Jia (Institute of Science Tokyo), Yuchen Wu (The University of Tokyo), and Kazuhiko Fukawa (Institute of Science Tokyo), “Self-Adaptive AFDM Communication System based on Reinforcement Learning,” IEICE General Conference, BS-1-10, March 2025.
Binu Shrestha, Yuyuan Chang, and Kazuhiko Fukawa (Tokyo Institute of Technology), “Device-to-device communications employing fog nodes using parallel and serial interference cancelers,” IEICE Transactions on Communications, vol. E107-B, no. 1, pp. 223-231, January 2024.
International Conference
Khin Thandar Kyaw, Wiroonsak Santipach (Kasetsart University), Kritsada Mamat (King Mongkut's University of Technology), Kamol Kaemarungsi (National Electronics and Computer Technology Center, NSTDA), and Kazuhiko Fukawa (Tokyo Institute of Technology), “Optimization of Transmit Beamforming Using Channel Covariances for MISO Downlink Assisted by Reconfigurable Intelligent Surfaces,,” 2024 21st International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), Khon Kaen, Thailand, May 2024, pp. 1-6.
Patipon Petchtone, Denchai Worasawate (Kasetsart University), Tiwat Pongthavornkamol (National Electronics and Computer Technology Center, NSTDA), Kazuhiko Fukawa, and Yuyuan Chang (Tokyo Institute of Technology), “Experimental results on FMCW radar based Human Recognition using only Doppler information,” 2024 21st International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), Khon Kaen, Thailand, May 2024, pp. 1-5.
Domestic Conference
Zijie Liang, Kazuhiko Fukawa, Yuyuan Chang (Tokyo Institute of Technology), “Unsourced random access employing massive MIMO over frequency selective channels (Tokyo Institute of Technology),” 電子情報通信学会ソサイエティ大会, B-5A-41, 2024年9月.
ZhiYuan Zhangn, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Institute of Technology), “Non-Orthogonal Multiple Access Schemes with Irregular Constellations for Mobile Channels,” 電子情報通信学会ソサイエティ大会, B-5A-42, 2024年9月
Yuyuan Chang and Kazuhiko Fukawa (Tokyo Institute of Technology), “Non-orthogonal multiple access based on orthogonal space-time block codes for mobile communications,” IEICE Transactions on Communications., vol. E106-B, no. 10, pp. 1024-1033, October. 2023.
International Conference
Zijie Liang (Tokyo Institute of Technology), Yiwei Su (Xidian University), Huiying Song, Kazuhiko Fukawa, and Yuyuan Chang (Tokyo Institute of Technology), “A slotted polar random spreading scheme for massive MIMO unsourced random access,” 2023 IEEE 98th Vehicular Technology Conference (VTC2023-Fall), Hong Kong, October 2023, pp. 1-5.
Yun Li, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Institute of Technology), and Naoki Kodama (Meiji University), “Reinforcement learning-based cognitive radio transmission scheduling in vehicular systems,” 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), Florence, Italy, June 2023, pp. 1-5.
Huiying Song, Yuyuan Chang, and Kazuhiko Fukawa (Tokyo Institute of Technology), “A CSI-based construction scheme for GN-Coset codes over frequency selective fading channels,” 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), Florence, Italy, June 2023, pp. 1-5.
Yuki Ono, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Institute of Technology), Satoshi Suyama, and Takahiro Asai (NTT DOCOMO), “Time-varying channel prediction for pilot contamination mitigation in hybrid massive MIMO communications,” 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), Florence, Italy, June 2023, pp. 1-5.
Yun Li, Yuyuan Chang, and Kazuhiko Fukawa (Tokyo Institute of Technology), Resource management using reinforcement learning for V2X communications to support autonomous driving,” IEICE Technical Report, vol. 123, no. 172, RCS2023-115, pp. 67-72, August 2023.
Zhengjun Qian, Yuyuan Chang, and Kazuhiko Fukawa (Tokyo Institute of Technology), “Iterative MLD receiver for faster-than-Nyquist signals,” IEICE Society Conference, B-5-23, September 2023.
Yun Li, Yuyuan Chang, and Kazuhiko Fukawa (Tokyo Institute of Technology), “Optimized channel selection in vehicular systems using reinforcement learning techniques,” IEICE Society Conference, B-5-2, September 2023.
Huiying Song, Yuyuan Chang, and Kazuhiko Fukawa (Tokyo Institute of Technology), “Encoding and Decoding of Polar Codes for Frequency Selective Fading Channels,” 2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring), Helsinki, Finland, June 2022.
Kohei Nozaki, Yuyuan Chang, and Kazuhiko Fukawa (Tokyo Institute of Technology), Daichi Hirahara (Japan Aerospace Exploration Agency), “Signal Separation of Collided AIS Packets Employing Iterative Channel Parameter Estimation in Space-based AIS,” 2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring), Helsinki, Finland, June 2022.
Domestic Conference
Tianhao Dong, Yuyuan Chang, and Kazuhiko Fukawa, “BEM based Adaptive Signal Detection for Underwater Acoustic MIMO-OFDM Communications,” IEICE Society Conference, B-5-43, Sept. 2022.
Meng Yan, Yuyuan Chang, and Kazuhiko Fukawa, “Random Phase and Pattern Schemes for Wireless Physical Layer Security,” IEICE Society Conference, B-5-40, Sept. 2022.
Binu Shrestha, Yuyuan Chang, and Kazuhiko Fukawa, “Device-to-Device Communications via Fog Nodes using Parallel Interference Cancellation,” IEICE Society Conference, B-5-33, Sept. 2022.
Zihan Wang, Yuyuan Chang, and Kazuhiko Fukawa, “Constant Amplitude NOMA-OFDM Wireless Communication System,” IEICE Society Conference, B-5-30, Sept. 2022.
Haoxiang Luan, Yuyuan Chang, and Kazuhiko Fukawa, “Power Control Based on Multi-layer FISTA for Small Cell MIMO Networks,” IEICE Society Conference, B-5-7, Sept. 2022.
Yuchen Liu, Yuyuan Chang, and Kazuhiko Fukawa, “A Distributed Reinforcement Learning Approach for Inter-Cell Interference Coordination,” IEICE Society Conference, B-5-6, Sept. 2022.
Hideya So, Kazuhiko Fukawa (Tokyo Institute of Technology), Hayato Soya (neko 9 Laboratories), and Yuyuan Chang (Tokyo Institute of Technology), “Metric-Combining Multiuser Detection Using Replica Cancellation with RTS and Enhanced CTS for High-Reliable and Low-Latency Wireless Communications,” IEICE Transactions on Communications, vol. E104-B, no. 11, pp. 1441-1453, 2021.
Hideya So (Tokyo Institute of Technology) (Shonan Institute of Technology), Hayato Soya (neko 9 Laboratories), and Kazuhiko Fukawa (Tokyo Institute of Technology),“Spectrum Sensing Scheme Measuring Packet Lengths of Interfering Systems for Dynamic Spectrum Sharing,” IEEE Access, vol. 9, pp. 135160-135166, 2021.
International Conference
Kittikom Sangrit (Sirindhorn International Institute of Technology), Jessada Karnjana (National Electronics and Computer Technology Center, NSTDA), Seksan Laitrakun (Sirindhorn International Institute of Technology), Kazuhiko Fukawa (Tokyo Institute of Technology), Somchart Fugkeaw (Sirindhorn International Institute of Technology), and Suthum Keerativittayanun (National Electronics and Computer Technology Center, NSTDA), “Distance Estimation Between Wireless Sensor Nodes Using RSSI and CSI with Bounded-Error Estimation and Theory of Evidence for a Landslide Monitoring System,” 2021 13th International Conference on Information Technology and Electrical Engineering (ICITEE), Chiang Mai, Thailand, October 2021, pp. 40-45.
Kohei Nozaki, Yuwa Takanezawa, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Institute of Technology), and Daichi Hirahara (Japan Aerospace Exploration Agency), “Multiuser Detection of Collided AIS Packets with Accurate Estimates of Doppler Frequencies,” 2021 IEEE 93rd Vehicular Technology Conference (VTC2021-Spring), Helsinki, Finland, April 2021, pp. 1-5.
Aman Worasutr (Kasetsart University), Denchai Worasawate(Kasetsart University), Tiwat Pongthavornkamol (National Electronics and Computer Technology Center, NSTDA), and Kazuhiko Fukawa (Tokyo Institute of Technology), “Improved Human Detection Algorithm by Indoor W-Band FMCW RADAR using K-means Technique,” 2021 9th International Electrical Engineering Congress (iEECON), Pattaya, Thailand, March 2021, pp. 571-574.
Huiying Song, Yuyuan Chang, and Kazuhiko Fukawa (Tokyo Institute of Technology), “Frozen Bits Design of Polar Codes over Frequency Selective Fading Channels,” IEICE Society Conference, B-5-27, September 2021.