IEICE Technical Report

Online edition: ISSN 2432-6380

Smart Radio

Workshop Date : 2025-10-28 - 2025-10-30 / Issue Date : 2025-10-21

SR2025-39
An Alerting Method for a Wireless Environment Monitoring System Operated by Non-Wireless Experts
Ayano Ohnishi, Yasuyuki Ninomiya, Masuto Nishiura (KKE)
pp. 1 - 7

SR2025-40
Investigation of Interpolation Methods for Radio Map Generation Using Real-Time Spectrum Monitors
Tatsuya Hatagi, Taketo Kakimoto, Masataka Miyake, Suguru Kameda (Hiroshima Univ.)
pp. 8 - 14

SR2025-41
Experimental evaluation of communication performance in coexistence of IEEE 802.15.4 SUN and IEEE 802.11 S1G
Kazuto Yano, Akio Hasegawa, Morihiko Tamai (ATR), Takenori Sumi, Yukimasa Nagai (Mitsubishi Electric), Satoru Shimizu, Toshikazu Sakano (ATR)
pp. 15 - 20

SR2025-42
[Short Paper] A Dynamic Clustering Approach for Interference Prediction from Massive Terrestrial Devices
Tatsuro Hidaka, Osamu Takyu (Shinshu Univ.), Kei Inage (TMCIT), Takeo Fujii (UEC), Kohei Yoshida, Masayuki Ariyoshi (NEC)
pp. 21 - 23

SR2025-43
[Short Paper] Deep Reinforcement Learning-based Transmit Power, Channel, and Base Station Allocation in Uplink NOMA
Hiroto Takagi, Xiaoyan Wang (Ibaraki University)
pp. 24 - 26

SR2025-44
A Study on Space-Time Synchronization Accuracy of Wi-Wi in Multipath Fading Channels
Megumi Fukuma, Nguyen Duc Phuc, Ryosuke Isogai, Keitarou Kondou, Satoshi Yasuda, Nobuyasu Shiga, Yozo Shoji (NICT)
pp. 27 - 30

SR2025-45
A study on radio noise suppression technology for mounted components using transparent radio wave reflection/absorption sheet
Satoru Shimizu, Atsuya Kase, Toshikazu Sakano, Katsuhiro Temma (ATR)
pp. 31 - 34

SR2025-46
[Invited Talk] 5G/6G Research and Development with Open-Source Software -- Development of OpenAirInterface-based Experimental Platform --
Shinichiro Kataoka, Tetsuya Iye, Syohei Takaya, Eisaku Sato, Haruki Osaki, Masaya Sakamoto, Yuki Susukida, Kaede Toya, Noriko Watanabe, Akihiro Tanibayashi, Takahiro Sasaki, Takahito Inoshita (KKE)
pp. 35 - 42

SR2025-47
[Invited Talk] Experimental Results of Energy Detection Based Carrier Sense Implemented on Sub-GHz Band LPWA Modules
Shusuke Narieda (Kyutech)
p. 43

SR2025-48
[Technology Exhibit] Development and Evaluation of a Network-Controlled Repeater toward millimeter-wave Coverage Expansion
Jin Nakazato (TUS), Go Itami (Visban), Yuki Tanaka (無所属), Arokia Nathan (Visban)
pp. 44 - 49

SR2025-49
[Technology Exhibit] Indoor positioning system using RSSI adaptive control with ZigBee terminals
Haruki Shubata, Osamu Takyu, Asano David (Shinshu Univ.)
pp. 50 - 56

SR2025-50
[Technology Exhibit] Indoor Radio Environment Estimation Using a Time-Synchronized Real-Time Spectrum Monitor Capable of Simultaneous Multi-Point Measurements
Taketo Kakimoto, Tatsuya Hatagi, Masataka Miyake, Suguru Kameda (Hiroshima Univ.)
pp. 57 - 61

SR2025-51
[Technology Exhibit] Implementation and evaluation of Variable Bandwidth LoRa for simultaneous reception of multiple signals with the same spreading factor
Jin Wakita, Takeo Fujii (UEC)
pp. 62 - 66

SR2025-52
[Technology Exhibit] Evaluation of throughput characteristics of 5G/6G based on map-based hybrid channel model
Koshiro Kitao, Satoshi Suyama, Takahiro Tomie, Nobuaki Kuno (NTT DOCOMO)
pp. 67 - 71

SR2025-53
[Technology Exhibit] High-Performance Area Estimation Tool Using Color Images Method
Takahiro Tomie, Satoshi Suyama, Koshiro Kitao, Nobuaki Kuno (NTT DOCOMO)
pp. 72 - 77

SR2025-54
[Technology Exhibit] Subterahertz band development approach utilizing ultra-high resolution channle sounder
Nobuaki Kuno, Koshiro Kitao, Takahiro Tomie, Satoshi Suyama (NTT DOCOMO), Minoru Inomata, Wataru Yamada, Ryotaro Taniguchi (NTT), Michael Millhaem, Tetsuaki Ikoma, Balaji Raghothaman (Keysight)
pp. 78 - 83

SR2025-55
[Technology Exhibit] Research and development into analysis of radio noise generated by increasingly densely packed robots and countermeasure technology
Satoru Shimizu (ATR)
pp. 84 - 86

SR2025-56
[Invited Talk] User-Centric Virtual Cells in Distributed MIMO: Emerging Approaches
Koji Ishibashi (UEC)
pp. 87 - 88

SR2025-57
[Invited Lecture] Null-Space Expansion and Transmit Power Control for Cell-Free Massive MIMO Systems
Kazuki Maruta, Takuto Suzuki, Yuki Sasaki (Tokyo Univ. of Science)
p. 89

SR2025-58
[Invited Lecture] Adaptive Cell Clustering for Enhanced Resource Efficiency in Distributed MIMO
Takuto Arai, Shuki Wai, Hibiki Tsukada, Daisei Uchida, Takafumi Fujita (NTT)
pp. 90 - 95

SR2025-59
[Invited Lecture] Distributed MIMO Technology for Stabilizing High-Capacity Millimeter-Wave Communication
Kazushi Muraoka, Daichi Shirase, Jun Shikida, Masaaki Tanio, Toshiki Takeuchi, Yasushi Maruta (NEC)
p. 96

SR2025-60
A Novel Signal Processing of DFTs-OFDM radar using Zadoff-Chu sequence for Multi-Target Detection
Masahiro Umehira, Yasushi Takatori (Nanzan Univ.)
pp. 97 - 102

SR2025-61
Interference experiments and communication condition evaluation for 5.7 GHz band unmanned mobile image transmission systems
Jun Teduka, Shoichi Kitazawa (Muroran IoT)
pp. 103 - 108

SR2025-62
Prototype Study of Electromagnetic Wave Confinement Structure Using Metasurface
Hiroyuki Nomoto (Sekisui)
pp. 109 - 112

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