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| Chair |
|
Yoji Kishi (KDDI Research) |
| Vice Chair |
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Amane Miura (NICT), Munehiro Matsui (NTT) |
| Secretary |
|
Riichiro Nagareda (KDDI Research), Yuma Abe (NICT) |
| Assistant |
|
Hisayoshi Kano (NTT DOCOMO), Shunsuke Uehashi (MELCO) |
|
|
|
| Chair |
|
Yukitoshi Sanada (Keio Univ.) |
| Vice Chair |
|
Takeshi Matsumura (NICT), Shisuke Ibi (Doshisha Univ.), Naoto Ishii (NEC) |
| Secretary |
|
Issei Kanno (KDDI Research), Kazuki Maruta (Tokyo Univ. of Science) |
| Assistant |
|
Yuta Hori (MELCO), Hideya Soo (Kogakuin Univ.), Takuto Arai (NTT), Yuichi Kawamoto (Tohoku University), Yuyuan Chang (NTT DOCOMO) |
|
| Conference Date |
Thu, Aug 28, 2025 09:00 - 18:15
Fri, Aug 29, 2025 09:00 - 17:25 |
| Topics |
Satellite Communications, Broadcasting, Forward Error Correction, Wireless Communications, etc. |
| Conference Place |
|
Copyright
and
reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| Registration Fee |
This workshop will be held as the IEICE workshop in fully electronic publishing. Registration fee will be necessary except the speakers and participants other than the participants to workshop(s) in non-electronic publishing. See the registration fee page. We request the registration fee or presentation fee to participants who will attend the workshop(s) on RCS, SAT. |
Thu, Aug 28 AM
09:00 - 10:15 |
(1)
RCS |
09:00-09:25 |
Evaluation of ML-Assisted Interference-Aware Analog Beam Selection Methods in Millimeter-Wave V2X Communications  RCS2025-98 |
Masaaki Ito, Shunsuke Kamiwatari, Taishi Watanabe, Issei Kanno (KDDI Research) |
(2)
RCS |
09:25-09:50 |
Interference Prediction and Service Area Construction Methods Using Deep Learning in Local 5G RCS2025-99 |
Changwoo Pyo, Masafumi Moriyama, Homare Murakami, Hirokazu Sawada, Takeshi Matsumura (NICT) |
(3)
RCS |
09:50-10:15 |
Searching for Optimal Pilot Pattern by Black-box Optimization Method Using Quantum Computing
-- Comparative evaluation with other methods -- RCS2025-100 |
Hiroaki Ominato, Ryo Takahashi, Takahiro Ohyama (PSNRD), Fumiyuki Adachi (Tohoku Univ.) |
| |
10:15-10:25 |
Break ( 10 min. ) |
Thu, Aug 28 AM
10:25 - 11:40 |
(4)
RCS |
10:25-10:50 |
Performance Comparison of Recent MIMO Signal Detection Methods
-- MCMC, Langevin, and Deep Unfolding Approaches -- RCS2025-101 |
Junichiro Hagiwara (MWU), Toshihiko Nishimura, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.) |
(5)
RCS |
10:50-11:15 |
Reinforcement Learning-based Antenna Association Switching and Deactivation in Uplink for Distributed Antenna Systems RCS2025-102 |
Ayumu Takada, Yukitoshi Sanada (Keio Univ.) |
(6)
RCS |
11:15-11:40 |
Performance of Uplink Heterogeneous Network with UAV Relay Station RCS2025-103 |
Mana Furuichi, Yukioshi Sanada (Keio Univ.) |
| |
11:40-13:00 |
Lunch Break ( 80 min. ) |
Thu, Aug 28 AM
09:00 - 10:15 |
(7)
RCS |
09:00-09:25 |
Parameter Estimation of Intelligent Reflecting Surface by Deep Reinforcement Learning for Wireless Communications RCS2025-104 |
Zeyu Chen, Gan Srirutchataboon, Kazuhiko Fukawa (Science Tokyo) |
(8)
RCS |
09:25-09:50 |
Real-Zero Based Frequency Down-Converter and Signal Detector for OFDM Wireless Communications RCS2025-105 |
Shuxuan Wang, Kazuhiko Fukawa (Science Tokyo), Satoshi Suyama (NTT DOCOMO) |
(9)
RCS |
09:50-10:15 |
Enhanced CA-OFDM Employing Beamforming Tracking and Compensation for Phase Noise in Millimeter-Wave Communications RCS2025-106 |
Zebang Deng, Kazuhiko Fukawa (Science Tokyo), Satoshi Suyama (NTT DOCOMO) |
| |
10:15-10:25 |
Break ( 10 min. ) |
Thu, Aug 28 AM
Chair: Shunsuke Uehashi (MELCO)
10:25 - 10:50 |
(10)
SAT |
10:25-10:50 |
Development of Satellite User Earth Station for disaster recovery operation SAT2025-38 |
Mitsuru Nishino, Junichi Abe, Kiyohiko Itokawa, Nana Hasegawa, Tomohiro Tokuyasu, Fumihiro Yamashita (NTT) |
Thu, Aug 28 PM
13:00 - 13:50 |
| (11) |
13:00-13:50 |
[Invited Talk]
R&D on NTN toward Beyond 5G/6G and Activity of XGMF NTN Promotion Project in XGMF SAT2025-39 RCS2025-107 |
Morio Toyoshima (NICT) |
| |
13:50-14:00 |
Break ( 10 min. ) |
Thu, Aug 28 PM
Chair: Amane Miura (NICT)
14:00 - 14:50 |
| (12) |
14:00-14:50 |
[Invited Talk]
Overview and Development Trends of Optical Satellite Communications Technology SAT2025-40 RCS2025-108 |
Hiroaki Miyoshi (NEC) |
| |
14:50-15:00 |
Break ( 10 min. ) |
Thu, Aug 28 PM
Chair: Munehiro Matsui (NTT)
15:00 - 15:50 |
| (13) |
15:00-15:50 |
[Invited Talk]
Demonstration of Formation Flying Technology Using CubeSat MAGNARO-II and Its Application to Space Communication SAT2025-41 RCS2025-109 |
Takaya Inamori (Nagoya Univ.) |
| |
15:50-16:00 |
Break ( 10 min. ) |
Thu, Aug 28 PM
16:00 - 17:15 |
(14)
RCS |
16:00-16:25 |
Effect of Replica Signal Phase Error for a Cross-Link Interference Canceller in Distributed Antenna Systems RCS2025-110 |
Shotaro Ishimoto, Takatoshi Sugiyama (Kogakuin Univ), Hiroto Yamamoto, Daisei Uchida, Takafumi Fujita (NTT) |
(15)
RCS |
16:25-16:50 |
Proposal of Adaptive Control CRE using multiple thresholds in Heterogeneous Network
-- Performance of method for Full Buffer Traffic Model -- RCS2025-111 |
Daichi Shinji, Takatoshi Sugiyama (Kogakuin Univ) |
(16)
RCS |
16:50-17:15 |
Impact of Base Station Height and Down-tilt Angle on Throughput in mmWave Three-Sector Pico-BS RCS2025-112 |
Naoto Inagaki, Takatoshi Sugiyama (Kogakuin Univ.) |
| |
17:15-17:25 |
Break ( 10 min. ) |
Thu, Aug 28 PM
Chair: Hisayoshi Kano (NTT DOCOMO)
17:25 - 18:15 |
(17)
SAT |
17:25-17:50 |
Optimization of Sum-Product Decoding Iterations for LDPC Coding in OFDM Spectrum Suppressed Transmission SAT2025-42 |
Tatsuya Tanaka, Takatoshi Sugiyama (Kogakuin Univ.) |
(18)
SAT |
17:50-18:15 |
Superposed Transmission Scheme in High-Speed OFDM Signal and Low-Speed CDMA Signal Based on 5G Parameters SAT2025-43 |
Sana Kagaya, Takatoshi Sugiyama (Kogakuin Univ.) |
Fri, Aug 29 AM
09:00 - 10:15 |
(19)
RCS |
09:00-09:25 |
RIS-Assisted Near-Field Dual-Beam MIMO Capacity Analysis in Sub-THz Bands RCS2025-113 |
Minghe Mao, Minseok Kim (Niigata Univ.) |
(20)
RCS |
09:25-09:50 |
A Hybrid Reinforcement Learning Framework for Cooperative Driving: From Algorithm Design to Real-World Validation RCS2025-114 |
Yu Taoyuan, Wang Kui, Li Zongdian, Yu Tao, Kei Sakaguchi (Institute of Science Tokyo) |
(21)
RCS |
09:50-10:15 |
A Study on Digital Twin-Based Blind Spot Visualization and Real-Time Hazard Alerts using AR Glasses RCS2025-115 |
Kaito Morita, Yu Tao, Sakaguchi Kei (Science Tokyo) |
| |
10:15-10:25 |
Break ( 10 min. ) |
Fri, Aug 29 AM
Chair: Yoji Kishi (KDDI Research)
10:25 - 11:50 |
| (22) |
10:25-10:35 |
|
(23)
SAT |
10:35-11:00 |
[Encouragement Talk]
Evaluation of Effect of R0.01 Estimation Errors Based on ITU-R Model on Rain Attenuation CDF Estimation SAT2025-44 |
Takumi Iwamoto (SKY Perfect JSAT) |
(24)
SAT |
11:00-11:25 |
[Encouragement Talk]
Development of functional expansion for TT&C transponder for satellite SAT2025-45 |
Shunsuke Okada, Tomomi Kouzu, Yuzo Hayashi, Masaki Hiruta (NEC Space Technologies) |
(25)
SAT |
11:25-11:50 |
[Encouragement Talk]
Image Enhancement 1-bit DAC of Direct Digital RF Transmitter for Q-Band DBF Array Antenna SAT2025-46 |
Yuki Fujiya, Tori Inoue, Koki Furuuchi, Junhao Zhang, Tomoyuki Furuichi, Satoshi Tsukamoto, Noriharu Suematsu (Tohoku Univ.) |
| |
11:50-13:00 |
Lunch Break ( 70 min. ) |
Fri, Aug 29 PM
13:00 - 13:50 |
(26)
RCS |
13:00-13:50 |
[Tutorial Lecture]
Goal-Oriented Wireless Sensor Networks: Error Exponent and Outage Analyses with Distributed Hypothesis Testing |
Tadashi Matsumoto (JAIST/University of Oulu) |
| |
13:50-14:00 |
Break ( 10 min. ) |
Fri, Aug 29 PM
14:00 - 15:00 |
| (27) |
14:00-14:30 |
[Invited Lecture]
Early Commercialization and System Evolution for HAPS Direct-to-Mobile-Phone Service
-- An Integrated Approach to Field Trials in Kenya and System Advancement through Device Development and Simulation -- SAT2025-47 RCS2025-116 |
Yuto Muroki, Yoshihisa Kishiyama, Sunao Toya, Takuya Miyashita, Takuya Shibasaki (Space Compass) |
| (28) |
14:30-15:00 |
[Invited Lecture]
R&D on High-Capacity and Frequency Sharing Technologies for HAPS Service Link SAT2025-48 RCS2025-117 |
Kenji Hoshino, Kouji Tashiro, Koichi Maki, Tsutomu Ishikawa, Wataru Takabatake (SoftBank Corp.) |
| |
15:00-15:10 |
Break ( 10 min. ) |
Fri, Aug 29 PM
Chair: Yuma Abe (NICT)
15:10 - 16:00 |
| (29) |
15:10-15:35 |
Massive GW Satellite MIMO Using Array Type Gateway Antennas SAT2025-49 RCS2025-118 |
Koyo Tategami, Daisuke Goto, Kiyohiko Itokawa, Tomohiro Tokuyasu, Fumihiro Yamashita (NTT) |
| (30) |
15:35-16:00 |
Multi-Beam Scheduling for Uplink and Downlink to Reduce Latency in Data Relay Satellite SAT2025-50 RCS2025-119 |
Kohei Yoshida, Yohei Hasegawa, Kazushi Sugyo, Kazushi Muraoka, Masayuki Ariyoshi (NEC) |
| |
16:00-16:10 |
Break ( 10 min. ) |
Fri, Aug 29 PM
16:10 - 17:25 |
(31)
RCS |
16:10-16:35 |
Control of Ground Gateway Antennas for Tracking Aerial UAVs in Temporary UAV Wireless Relay Systems RCS2025-120 |
Takuya Kaneda (SoftBank), Makoto Sugisawa (Science Tokyo), Takafumi Fujii (SoftBank), Teruya Fujii (Science Tokyo) |
(32)
RCS |
16:35-17:00 |
An experimental study on the reception of the Q-ANPI disaster information signal broadcast by the Quasi-Zenith Satellite Michibiki-3 RCS2025-121 |
Satoshi Takahashi (Hiroshima City Univ.) |
(33)
RCS |
17:00-17:25 |
Extension of Wireless Emulator for Evaluation of Satellite-to-Ground Communication and Validation using Emulated Satellite Station RCS2025-122 |
Takeshi Matsumura, Hirokazu Sawada, Tomoshige Kan, Byeongpyo Jeong, Takatoshi Tsuji (NICT) |
| Announcement for Speakers |
| General Talk (RCS) | Each speech will have 18 minutes for presentation and 7 minutes for discussion. |
| General Talk (SAT) | Each speech will have 20 minutes for presentation and 5 minutes for discussion. |
| Encouragement Talk | Each speech will have 20 minutes for presentation and 5 minutes for discussion. |
| Invited Lecture | Each speech will have 25 minutes for presentation and 5 minutes for discussion. |
| Invited Talk | Each speech will have 45 minutes for presentation and 5 minutes for discussion. |
| Tutorial Lecture | Each speech will have 45 minutes for presentation and 5 minutes for discussion. |
| Contact Address and Latest Schedule Information |
| SAT |
Technical Committee on Satellite Telecommunications (SAT) [Latest Schedule]
|
| Contact Address |
Secretary： t_ - c  
Riichiro Nagareda (KDDI Research)
Yuma Abe (NICT)
Hisayoshi Kano (NTT DOCOMO)
Shunsuke Uehashi (MELCO) |
| RCS |
Technical Committee on Radio Communication Systems (RCS) [Latest Schedule]
|
| Contact Address |
E-:r _- |
Last modified: 2025-08-28 08:16:52
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