IEICE Technical Report

Online edition: ISSN 2432-6380

Radio Communication Systems

Workshop Date : 2025-10-23 - 2025-10-24 / Issue Date : 2025-10-16

RCS2025-123
Joint Optimization of Millimeter-Wave 5G Base Station Placement and Analog Beam Pattern Setting Using Reinforcement Learning
Takeru Fukushima, Shoko Shinohara, Toshiro Nakahira, Daisuke Murayama, Yusuke Asai (NTT), Takuya Fujihashi, Shunsuke Saruwatari (Osaka Univ.)
pp. 1 - 6

RCS2025-124
Intelligent Reflecting Surface Control Using a Stereo Camera for High-Frequency-Band Communications
Ryuhei Kobayashi, Toshihiko Nishimura, Yasutaka Ogawa, Katsuya Suto (Hokkaido Univ.), Yuta Hayashi, Satoshi Suyama (NTT DOCOMO), Takeo Ohgane (Hokkaido Univ.)
pp. 7 - 12

RCS2025-125
Bidirectional communication experiments over 20-km Fiber using millimeter wave band cascaded analog RoF-based DAS
Yasuyoshi Yamamoto, Mizuki Suga, Hiroto Yorioka, Hideyuki Tsuboi, Takafumi Fujita (NTT)
pp. 13 - 18

RCS2025-126
[Encouragement Talk] Joint Near-field and Data Estimation via Bayesian Bilinear Inference for Extremely Large-Scale MIMO Systems
Kabuto Arai, Koji Ishibashi (UEC), Hiroki Iimori, Paulo Valente Klaine, Szabolcs Malomsoky (ERJ)
pp. 19 - 24

RCS2025-127
[Encouragement Talk] Beam Selection Method in RIS-empowered 6G System
Dan Mohri, Satoshi Suyama, Yuyuan Chang, Jiang Huiling (NTT DOCOMO)
pp. 25 - 30

RCS2025-128
Autonomous Interference Mitigation Schemes for Private 5G Environments without Operator Coordination
Masafumi Moriyama, Chang-Woo Pyo, Homare Murakami, Hirokazu Sawada, Takeshi Matsumura (NICT)
pp. 31 - 36

RCS2025-129
Verification of Communication Characteristics Evaluation Method using Wireless Emulator for Radio Device with Built-in Antenna
Kazuo Ibuka, Takeshi Matsumura (NICT)
pp. 37 - 42

RCS2025-130
A Study on System Capacity Improvement of WLAN with Multiple APs Considering Interfering Systems
Hideya So, Takahiro Murakami (Kogakuin Univ.), Kotaro Nagano, Shinya Ohtsuki, Yusuke Asai (NTT)
pp. 43 - 46

RCS2025-131
Towards Energy-Efficient FR3 Massive MIMO: Antenna Muting and Hybrid Beamforming Evaluation
Shunsuke Kamiwatari, Takeo Ohseki, Issei Kanno (KDDI Research), Silvio Mandelli, Foad Sohrabi (Nokia Bell Labs)
pp. 47 - 52

RCS2025-132
A Study on Transmission Characteristics of Mid-Band Massive MIMO in Yokosuka City Using Color Image Method and Link Level Simulation
Yuta Hayashi, Takahiro Tomie, Satoshi Suyama, Dan Mohri, Yuyuan Chang, Huilling Jiang (NTT DOCOMO)
pp. 53 - 58

RCS2025-133
A Study on Robust Beamforming Against Channel Variations Using Null-space Expansion in Time and Frequency Domains
Takanobu Doi, Daichi Shirase, Asuka Kakehashi, Kazushi Muraoka (NEC)
pp. 59 - 64

RCS2025-134
[Invited Talk] Self-stabilizing Leader Election in Population Protocols
Yuichi Sudo (Hosei Univ.)
pp. 65 - 67

RCS2025-135
Low-Complexity Reception Method Maintaining the FH Bandwidth for Uplink Multi-User MIMO Performance Improvement in O-RAN Base Station
Asuka Kakehashi, Daichi Shirase, Takanobu Doi, Toshiki Takeuchi, Kazushi Muraoka (NEC)
pp. 68 - 73

RCS2025-136
Proposal of MP-QUIC Packet Redundancy Method for B5G Latency Environment
Hikaru Kawasaki (NICT), Anke Schmeink (RWTH), Takeshi Matsumura (NICT)
pp. 74 - 79

RCS2025-137
A Simulation-Based Study on the Integration of Visible Light Communication into NRNT for 6G Mobile Communications
Yuyuan Chang, Satoshi Suyama, Huiling Jiang (NTT DOCOMO)
pp. 80 - 83

RCS2025-138
[Invited Lecture] Mitigating the Communication Range-Data Rate Trade-off in Rolling Shutter based VLC
Masayuki Kinoshita, Koji Kamakura (Chiba Tech.), Takaya Yamazato (Nagoya Univ.)
p. 84

RCS2025-139
[Invited Lecture] Camera-Based Visible Light Communication Using Rotating LEDs: Technological Advancements and Challenges
Zhengqiang Tang (Shizuoka Univ.), Shintaro Arai (Okayama Univ. of Sci.), Takaya Yamazato (Nagoya Univ.)
p. 85

RCS2025-140
[Invited Lecture] Trends in Underwater Visible Light Communications -- Moving to the stage of competing on practical performance --
Takao Sawa (JAMSTEC)
pp. 86 - 91

RCS2025-141
[Invited Lecture] Color Shift Keying Using Multiple Wavelengths for Shallow-Water Simultaneous Lightwave Information and Power Transfer
Yusuke Kozawa (Ibaraki Univ.)
p. 92

RCS2025-142
A Study on Propagation Model For Area-Type UW-VLC Applicable To Shallow Water
Chiharu Yamazaki, Tetsufumi Tasaki, Atsuhisa Inakoshi, Noriyoshi Fukuta (KYOCERA), Yusuke Kozawa (Ibaraki Univ.)
pp. 93 - 97

RCS2025-143
Simulation Evaluation on Area-Type UW-VLC Applicable To Shallow Water
Tetsufumi Tasaki, Chiharu Yamazaki, Atsuhisa Inakoshi, Noriyoshi Fukuta (KYOCERA), Yusuke Kozawa (Ibaraki Univ.)
pp. 98 - 103

RCS2025-144
Indoor Experimental Trial of Short-Range High-Speed Underwater Optical Wireless Communication Using HC-OFDM
Yoshitaka Toeda, Atsuya Yokoi (kyocera)
pp. 104 - 109

RCS2025-145
Zero Excess Node MAC Protocol for Realizing Energy Harvesting Wireless Sensor Networks: Design and Implementation
Tatsuhiro Kawaguchi, Koji Ishibashi (The Univ. of Electro-Communications)
pp. 110 - 115

RCS2025-146
Proposal of a Spread Spectrum Multiple Access Scheme Based on Sequence Design via Pattern Extraction
Wataru Yasuhara (Ind.)
pp. 116 - 119

Note: Each article is a technical report without peer review, and its polished version will be published elsewhere.

The Institute of Electronics, Information and Communication Engineers (IEICE), Japan