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| Chair |
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Tetsuro Imai (TDU) |
| Vice Chair |
|
Ichiro Oshima (DKK) |
| Secretary |
|
Wataru Yamada (NTT), Miyuki Hirose (Kyutech) |
| Assistant |
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Takashi Tomura (Science Tokyo) |
|
|
|
| Chair |
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Yukitoshi Sanada (Keio Univ.) |
| Vice Chair |
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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 |
Wed, Nov 12, 2025 10:00 - 17:30
Thu, Nov 13, 2025 09:30 - 18:20
Fri, Nov 14, 2025 09:50 - 16:10 |
| Topics |
Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Conference Place |
Ehime Prefectural Cultural Hall |
| Address |
2-5-1 Dogo-machi, Matsuyama, Ehime 790-0843, Japan |
| Transportation Guide |
[From JR Matsuyama Station] Take the Iyo Railway tram bound for Dogo Onsen. Get off at Minamimachi Station and walk about 3 minutes. [From Matsuyama Airport] Take the Limousine Bus bound for Dogo Onsen Station. Get off at Minamimachi-Kenmin-Bunka-Kaikan-mae stop, right in front of the hall. Approx. 40 minutes.
https://www.kenbun.jp/access/ |
| Sponsors |
This conference is co-sponsored by IEEE AP-S Kansai Joint Chapter.
|
| Announcement |
[Venue Information] Please note that the meeting rooms differ by date during the Technical Meeting.
Wed., Nov. 12 Main Building, 3F, Room 6
Thu., Nov. 13 Main Building, 3F, Room 6
Fri., Nov. 14 Annex Building, Room 11
Access information: https://www.kenbun.jp/access/ |
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 AP, RCS. |
Wed, Nov 12 AM Special Session on Recent Advances in Design, Control, and Applications of RIS/IRS and Metasurfaces
Chair: Takashi Tomura (Science Tokyo)
10:00 - 11:20 |
| (1) |
10:00-10:20 |
Design of Reconfigurable Convex-Type Metasurface Reflectors for 3D Beam Steering  AP2025-150 RCS2025-147 |
Ayaka Sato, Taisei Urakami (NIT, Kagawa College), Tamami Maruyama (Hiroshima Inst. of Tech.), Akira Ono (NIT, Kagawa College), Na Chen (Univ. of Science and Tech. Beijing/NAIST), Minoru Okada (NAIST) |
| (2) |
10:20-10:40 |
Design of Conformal RIS Using Flexible Printed Circuits with Air Gaps AP2025-151 RCS2025-148 |
Kanata Okada, Taisei Urakami (NIT, Kagawa College), Tamami Maruyama (Hiroshima Inst. of Tech.), Akira Ono (NIT, Kagawa College), Na Chen (Univ. of Science and Tech. Beijing/NAIST), Minoru Okada (NAIST) |
| (3) |
10:40-11:00 |
Experimental Evaluation of Incident and Reflection Angle Error Estimation for Intellignent Reflecting Surface via Two-Step Beam Scanning AP2025-152 RCS2025-149 |
Keita Ueno, Nao Kubota, Masaki Saito, Ryuto Kamikawana, Hiroaki Hashida, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Takuya Ohto, Takahiro Hayashi (KDDI Research, Inc.), Mitsutaka Okita (JDI) |
| (4) |
11:00-11:20 |
Experimental Evaluation of Frequency Characteristics of Intelligent Reflecting Surface AP2025-153 RCS2025-150 |
Mariko Ishikawa, Yutaro Tanaka, Ryohei Chiba, Miyako Takemura, Ryuhei Hibi, Hiroaki Hashida, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Takumi Yoneda, Tomoki Murakami (NTT) |
| |
11:20-11:30 |
Break ( 10 min. ) |
Wed, Nov 12 AM AP
Chair: Miyuki Hirose (Kyutech)
11:30 - 12:10 |
(5)
AP |
11:30-11:50 |
Modeling of Spatio-Temporal Propagation Path near Human Body in 300 GHz Band in Outdoor Environment AP2025-154 |
Keita Kuga, Hiroaki Nakabayashi (CIT) |
(6)
AP |
11:50-12:10 |
Long-term Trends in Rainfall Extreme Data in Japan [V]
-- Predicting the Future Trend of Rain Attenuation in Radio Communication Systems -- AP2025-155 |
Yoshio Karasawa |
| |
12:10-13:10 |
Break ( 60 min. ) |
Wed, Nov 12 PM RCS
13:10 - 14:30 |
(7)
RCS |
13:10-13:30 |
[Encouragement Talk]
Research on Mobility Networks with Digital Twin toward mmWave V2X RCS2025-151 |
Jin Nakazato, Ryuichi Nori, Sojin Ozawa, Yuki Sasaki, Keishi Hijikata (TUS), Haruki Osaki, Tetsuya Iye (KKE), Kazuki Maruta (TUS) |
(8)
RCS |
13:30-13:50 |
Beam Tracking and Dynamic Broad-Range Null-Steering Considering Reflected Wave in Millimeter-Wave V2X RCS2025-152 |
Sojin Ozawa, Yuki Sasaki, Jin Nakazato (Tokyo Univ. of Science), Haruki Osaki, Tetsuya Iye (KKE), Kazuki Maruta (Tokyo Univ. of Science) |
(9)
RCS |
13:50-14:10 |
Measurement of Antenna Coupling for UAV-Assisted In-Band Full-Duplex FPU Relay Systems RCS2025-153 |
Takuya Kurakake, Fumito Ito, Fumiya Yamagishi, Kazuhiko Mitsuyama (NHK) |
(10)
RCS |
14:10-14:30 |
Evaluation of Destination Shared and Priority Optimal Reciprocal Collision Avoidance Using Drone-to-Drone Communication RCS2025-154 |
Toshi Ito, Takashi Matsuda, Takeshi Matsumura (NICT) |
| |
14:30-14:40 |
Break ( 10 min. ) |
Wed, Nov 12 PM RCS
14:40 - 16:00 |
(11)
RCS |
14:40-15:00 |
A Link-Specific AP Selection for Multi-Link Operation in Multi-AP Coordination Systems RCS2025-155 |
Ryu Shoji, Hiroaki Hashida, Yuichi Kawamoto, Nei Kato (Tohoku Univ), Yoshio Urabe, Hiroyuki Motozuka (Panasonic IP) |
(12)
RCS |
15:00-15:20 |
Proposal for Optimal Selection of APs Participating in the Coordination to Improve Performance in Multi-AP Coordination RCS2025-156 |
Sota Kuwahara, Hiroaki Hashida, Yuichi Kawamoto, Nei Kato (Tohoku Univ.), Yoshio Urabe, Hiroyuki Motozuka (Panasonic IP) |
(13)
RCS |
15:20-15:40 |
Indirect Notification of Interference Status in LoRaWAN RCS2025-157 |
Yuto Hayasaka (UEC), Koichi Adachi (KU) |
(14)
RCS |
15:40-16:00 |
Study of Adaptive Grouping Scheme for Uplink Terminal Collaboration Considering Device-to-Device Communication Throughput RCS2025-158 |
Riku Nakaoka, Yukitoshi Sanada (Keio Univ.) |
| |
16:00-16:10 |
Break ( 10 min. ) |
Wed, Nov 12 PM RCS
16:10 - 17:30 |
(15)
RCS |
16:10-16:30 |
Experimental Verification of Receiver Grouping and Time-Division Wireless Power Transfer Based on Battery Levels RCS2025-159 |
Shuma Okita, Mitsuki Muroi (Tokyo Univ. of Science), Takahiro Matsuda (Tokyo Metropolitan Univ.), Tomotaka Kimura (Doshisha Univ.), Takefumi Hiraguri (NIT), Yoshiki Shirasawa, Susumu Miura, Noboru Sekino (DKK), Kazuki Maruta (Tokyo Univ. of Science) |
(16)
RCS |
16:30-16:50 |
Evaluation of Angle Variation Models in CSK-Based Optical Camera Communication RCS2025-160 |
Yuta Furukawa, Yuki Sasaki (Tokyo Univ. of Science), Daisuke Hisano (Osaka Univ.), Yu Nakayama (Tokyo Univ. of Agriculture and Technology), Kazuki Maruta (Tokyo Univ. of Science) |
(17)
RCS |
16:50-17:10 |
Image Value-Based Dynamic Spatial Stream Allocation in Deep Joint Source-Channel Coded MIMO Transmission RCS2025-161 |
Shion Inokuma, Goki Sawada (Tokyo Univ. of Science), Hisano Daisuke (Osaka Univ.), Kazuki Maruta (Tokyo Univ. of Science) |
(18)
RCS |
17:10-17:30 |
Evaluation of Privacy-Sensitive Posture Detection using Terahertz Wave Sensing Technology RCS2025-162 |
Hideya So (Kogakuin University.), Tatsuya Yoshida (OLDBASE), Shusaku Umeda, Kazuaki Ishioka, Takumi Suzaki, Kyoko Nakayama (MELCO) |
Thu, Nov 13 AM Special Session on Recent Advances in Design, Control, and Applications of RIS/IRS and Metasurfaces
09:30 - 10:30 |
| (19) |
09:30-09:50 |
A Study on Active-Element Allocation Using a Genetic Algorithm for IRS-Assisted Systems AP2025-156 RCS2025-163 |
Taisei Miura, Norisato Suga (SIT) |
| (20) |
09:50-10:10 |
IRS Channel Estimation in Near-Field Environments Using Gaussian Process Regression AP2025-157 RCS2025-164 |
Itsuki Koido, Norisato Suga (SIT) |
| (21) |
10:10-10:30 |
CDL-Based Propagation Model of Near-Field of Electrically Large RIS AP2025-158 RCS2025-165 |
Hiromi Matsuno, Tatsuya Nagao, Satoshi Ito, Takahiro Hayashi, Yoshiaki Amano (KDDI Research) |
| |
10:30-10:40 |
Break ( 10 min. ) |
Thu, Nov 13 AM RCS
10:40 - 12:00 |
(22)
RCS |
10:40-11:00 |
A Study on Wireless AutoEncoder with EP-based Signal Detection for LDPC Coded MIMO Systems RCS2025-166 |
Yuto Imahori, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Univ. of Osaka), Kazushi Muraoka, Takanobu Doi (NEC), Hisato Iwai (Doshisha Univ.) |
(23)
RCS |
11:00-11:20 |
Theoretical study on bit error rate performance in key reconciliation using the Cascade protocol RCS2025-167 |
Hideichi Sasaoka, Hisato Iwai (Doshisha Univ.) |
(24)
RCS |
11:20-11:40 |
Key Reconciliation Using Cascade Protocol in Wireless Physical Layer Secret Key Agreement RCS2025-168 |
Kenshin Shinomiya, Hideichi Sasaoka, Hisato Iwai, Shinsuke Ibi (Doshisha Univ.) |
(25)
RCS |
11:40-12:00 |
Demapping of Multiple QAM/APSK Constellations using a Complex-Valued Neural Network RCS2025-169 |
Shusaku Maeda, Keisuke Kameyama (Univ.Tsukuba) |
| |
12:00-13:00 |
Break ( 60 min. ) |
Thu, Nov 13 PM A・P/RCS
13:00 - 13:50 |
| (26) |
13:00-13:50 |
[Invited Talk]
Signal transmission/processing systems utilizing nanostructures and topology AP2025-159 RCS2025-170 |
Keita Funayama, Kenichi Yatsigi, Hiroya Tanaka (TCRDL), Jun Hirotani (Kyoto Univ.), Yutaka Ohno (Nagoya Univ.), Yukihiro Tadokoro, Hideo Iizuka (TCRDL) |
| |
13:50-14:00 |
Break ( 10 min. ) |
Thu, Nov 13 PM AP
Chair: Hiroshi Hashiguchi (National Defense Academy)
14:00 - 15:00 |
(27)
AP |
14:00-14:20 |
A consideration on a single-layer dual-polarized dual-band and wideband ring planar antenna fed by two L-probes with an X-shaped inner element AP2025-160 |
Terutoshi Goto, Yuichi Kimura (Saitama Univ.) |
(28)
AP |
14:20-14:40 |
A Polarization- and Beam-Reconfigurable Patch Array Antenna Using Switchable Parasitic Lines AP2025-161 |
Ren Sonoda, Maodudul Hasan, Masaya Tamura (TUT) |
(29)
AP |
14:40-15:00 |
Scattering Suppression of Metal Square Rod with Mantle Cloak Using Strip Conductors AP2025-162 |
Samu Fujisaki, Hiroshi Hashiguchi, Naobumi Michishita (National Defense Academy), Kiyoshi Sakimoto, Teruki Miyazaki, Masoto Tadokoro (The Yokohama Rubber Co., Ltd.) |
| |
15:00-15:10 |
Break ( 10 min. ) |
Thu, Nov 13 PM RCS
15:10 - 16:10 |
(30)
RCS |
15:10-15:30 |
Energy Detection Based Noncoherent SIMO Systems RCS2025-171 |
Tatsumi Konishi, Haruka Shinzaki (Aichi Inst. of Tech.) |
(31)
RCS |
15:30-15:50 |
Effect of DMRS Symbol Numbers Increase on Self-interference Cancellation in Full-duplex Communication Considering Time-Varying Self-interference RCS2025-172 |
Kazuma Matsushima, Takatoshi Sugiyama (Kogakuin Univ.) |
(32)
RCS |
15:50-16:10 |
Study on Demodulation of multi-level modulated signals using polarization in a 1-bit Direct RF Undersampling receiver RCS2025-173 |
Eito Sato, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.) |
| |
16:10-16:20 |
Break ( 10 min. ) |
Thu, Nov 13 PM AP
Chair: Hideya So (Kogakuin University.)
16:20 - 17:20 |
(33)
AP |
16:20-16:40 |
Generalized propagation fluctuation model of the sky-cell in 3D cell structure for mobile communications
-- An extension of the Nakagami-Rice model and its measurement method -- AP2025-163 |
Teruya Fujii, Keita Iwasa (Science Tokyo) |
(34)
AP |
16:40-17:00 |
Introduction of 400MHz narrowband LoRa communication system effective in hilly and mountainous areas AP2025-164 |
Yukio Nakata (DKK Co., Ltd), Masahiro Fukumoto (Kochi University of Technology), Tadashige Iwao (Kochi Univ.) |
(35)
AP |
17:00-17:20 |
Comparative Experiment on the Reception Performance of Private LoRa Wireless Modules AP2025-165 |
Kento Era, Shinji Tsuzuki (Ehime Univ), Yukio Nakata (DKK Co., Ltd) |
| |
17:20-17:30 |
Break ( 10 min. ) |
Thu, Nov 13 PM AP /IEEE AP-S Kansai Joint Chapter Special Talk
Chair: Tsunayuki Yamamoto (NIT, Tsuyama)
17:30 - 18:20 |
| (36) |
17:30-18:20 |
[Special Talk] Propagation characteristics of LoRa radio and its applications
Shinji Tsuzuki (Ehime Univ.) |
Fri, Nov 14 AM Special Session on Recent Advances in Design, Control, and Applications of RIS/IRS and Metasurfaces
Chair: Hiromi Matsuno (KDDI Research)
09:50 - 10:30 |
| (37) |
09:50-10:10 |
Design and Measurement for Large Transparent Metasurface Reflectors in Millimeter-Band Wave AP2025-166 RCS2025-174 |
Sho Yoshida, Sangmun Lee, Toshiki Sayama, Osamu Kagaya (AGC), Takumi Yoneda, Tomoki Murakami (NTT), Dan Mohri, Satoshi Suyama (NTT Docomo) |
| (38) |
10:10-10:30 |
[Encouragement Talk]
Evaluation of Control Delay in Dynamic RIS Tracking Control Using User Position Information AP2025-167 RCS2025-175 |
Takumi Yoneda, Tomoki Murakami, Riichi Kudo, Tomoaki Ogawa (NTT) |
| |
10:30-10:40 |
Break ( 10 min. ) |
Fri, Nov 14 AM AP/RCS
Chair: Tetsuro Imai (Tokyo Denki Univ.)
10:40 - 11:30 |
| (39) |
10:40-11:30 |
[Special Talk]
Development of Liquid Crystal-Based Reflectarray for Reducing Path Loss of Millimeter-wave AP2025-168 RCS2025-176 |
Qiang Chen (Tohoku Univ.) |
| |
11:30-11:40 |
Break ( 10 min. ) |
Fri, Nov 14 AM RCS
11:40 - 12:40 |
(40)
RCS |
11:40-12:00 |
SVD-Based Optimization of Steered Null Directions for Aerial-Terrestrial Spectrum Sharing RCS2025-177 |
Tsutomu Ishikawa, Koji Tashiro, Koichi Maki, Kenji Hoshino (SoftBank) |
(41)
RCS |
12:00-12:20 |
A Study of a Coordinated MU-MIMO Canceller by Using SRS RCS2025-178 |
Ryohei Maeda, Takafumi Fujii (SoftBank), Teruya Fujii (Science Tokyo) |
(42)
RCS |
12:20-12:40 |
Evaluation of Direction of Arrival Estimation Performance Using DNN with Principal Components Analysis in a Real-World Scenario RCS2025-179 |
Naoki Sawada, Daniel Akira Ando, Tetuya Manabe (Mie Univ) |
| |
12:40-13:40 |
Break ( 60 min. ) |
Fri, Nov 14 PM AP
Chair: Ichiro Oshima (DKK)
13:40 - 14:40 |
(43)
AP |
13:40-14:00 |
Characterization of RF-DC Array Differential Rectennas Considering Feeding Circuit Losses for High-Power Wireless Power Transfer AP2025-169 |
Yusuke Cho, Eisuke Nishiyama, Ichihiko Toyoda (Saga Univ.) |
(44)
AP |
14:00-14:20 |
Measurement Results of a Low Axial-ratio/Sidelobe Array Antenna with Stripline-fed Slot-coupled Cross-shaped Patch Elements AP2025-170 |
Takashi Uno, Takashi Maruyama, Takafumi Yokoe, Tai Tanaka, Toru Takahashi (MELCO) |
(45)
AP |
14:20-14:40 |
Field evaluation of localization algorithm using mm-wave radar in non-line of sight environments AP2025-171 |
Takayuki Nakanishi, Dai Sasakawa, Yasuhiro Nishioka, Kengo Nishimoto, Toru Takahashi (MELCO) |
| |
14:40-14:50 |
Break ( 10 min. ) |
Fri, Nov 14 PM RCS
14:50 - 16:10 |
(46)
RCS |
14:50-15:10 |
Actor-Critic for Multi-User Dynamic Spectrum Access RCS2025-180 |
Hu Bin, Hideaki Goto, Takuo Suganuma (Tohoku Univ.) |
(47)
RCS |
15:10-15:30 |
A Study on Linearization Methods using Deep Reinforcement Learning for Optical Modulators and Nonlinear Amplifiers in A-RoF Links RCS2025-181 |
Uyu Fujii, Takeshi Higashino, Hiroto Yorioka, Minoru Okada (NAIST) |
(48)
RCS |
15:30-15:50 |
Propagation model development and enhancement for wireless emulator RCS2025-182 |
Hirokazu Sawada, Azril Haniz, Takeshi Matsumura (NICT) |
(49)
RCS |
15:50-16:10 |
Genetic Algorithm-Based Service Area Optimization for Multi-Teleoperator Multi-Cybernetic Avatar Scenarios in Private 5G Networks RCS2025-183 |
Arif Dataesatu, Takeshi Matsumura (NICT) |
| Announcement for Speakers |
| General Talk | Each speech will have 15 minutes for presentation and 5 minutes for discussion. |
| Encouragement Talk | Each speech will have 15 minutes for presentation and 5 minutes for discussion. |
| Invited Talk | Each speech will have 45 minutes for presentation and 5 minutes for discussion. |
| Special Talk | Each speech will have 45 minutes for presentation and 5 minutes for discussion. |
| Contact Address and Latest Schedule Information |
| AP |
Technical Committee on Antennas and Propagation (AP) [Latest Schedule]
|
| Contact Address |
Miyuki Hirose (Kyutech)
E- :  _ - c  ry  |
| RCS |
Technical Committee on Radio Communication Systems (RCS) [Latest Schedule]
|
| Contact Address |
E-:r _- |
Last modified: 2025-11-11 14:37:56
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