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Technical Committee on Radio Communication Systems (RCS) [schedule] [select]
Chair Kenichi Higuchi (Tokyo Univ. of Science))
Vice Chair Tomoya Tandai (Toshiba), Fumihide Kojima (NICT), Osamu Muta (Kyushu Univ.)
Secretary Tetsuya Yamamoto (Panasonic), Koichi Adachi (Univ. of Electro-Commun.), Osamu Nakamura (Sharp)
Assistant Manabu Sakai (Mitsubishi Electric), Masashi Iwabuchi (NTT), Tatsuki Okuyama (NTT DOCOMO), Issei Kanno (KDDI Research), Yuyuan Chang (Tokyo Inst. of Tech)

Conference Date Wed, Jun 15, 2022 09:30 - 17:15
Thu, Jun 16, 2022 09:40 - 16:50
Fri, Jun 17, 2022 09:00 - 16:10
Topics First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Conference Place University of the Ryulkyus, Senbaru Campus + Online 
Transportation Guide http://www.u-ryukyu.ac.jp/univ_info/general/access/index.html
Contact
Person
Prof. Masato Saito
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.

Wed, Jun 15 AM  RCS1
Chair: Fumihide Kojima (NICT)
09:30 - 10:45
(1) 09:30-09:55 Initial Physical Cell ID Detection Time Using NR Synchronization Signals for HetNet Based on System-Level Simulation RCS2022-24 Shun Yoneda, Mamoru Sawahashi (Tokyo City Univ.), Satoshi Nagata (NTT DOCOMO)
(2) 09:55-10:20 Simulation Evaluation of Millimeter Wave Cell Free massive MIMO for Realistic Deployment Environment RCS2022-25 Shunsuke Kamiwatari, Issei Kanno, Takahiro Hayashi, Yoshiaki Amano (KDDI Research, Inc.)
(3) 10:20-10:45 A Study on Uplink Postcoding in User-Centric and User-Cluster-Centric CF-mMIMO RCS2022-26 Ryo Takahashi, Hidenori Matsuo, Sijie Xia, Qiang Chen, Fumiyuki Adachi (Tohoku Univ.)
  10:45-11:00 Break ( 15 min. )
Wed, Jun 15 AM  RCS2
Chair: Issei Kanno (KDDI Research)
11:00 - 11:50
(4) 11:00-11:25 Two-Step Dynamic Cell Optimization Algorithm for HAPS Mobile Communications RCS2022-27 Yohei Shibata (SB/Keio), Wataru Takabatake, Kenji Hoshino, Atsushi Nagate (SB), Tomoaki Ohtsuki (Keio)
(5) 11:25-11:50 Inter-HAPS Interference Reduction Technique Using Subarrayed Cylindrical Antenna with Nullforming RCS2022-28 Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank)
  11:50-13:00 Lunch ( 70 min. )
Wed, Jun 15 PM  First Presentation in IEICE Technical Committee Oral 1
Chair: Toshihiko Nishimura (Hokkaido Univ.)
13:00 - 13:50
(1) 13:00-13:10 Phase Noise Compensation Using FDM Based Pilot Symbol Assisted EKF for OFDM Based Radio Backhaul Links RCS2022-29 Ryota Kuribayashi, Mamoru Sawahashi (Tokyo City Univ.), Norifumi Kamiya (NEC)
(2) 13:10-13:20 Preamble Detection of PRACH with Short Sequence Considering Frequency Offset for NR Radio Interface RCS2022-30 Takamichi Chiba, Mamoru Sawahashi (Tokyo City Univ.), Yoshihisa Kishiyama (NTT DOCOMO)
(3) 13:20-13:30 Complexity-Reduced Channel Estimation Using Comb-Shaped Preamble for Random Access with Transmitter Filtering and Channel Identifier Linked Receiver Beamforming RCS2022-31 Andrey Bolotov, Takanori Hara, Kenichi Higuchi (Tokyo Univ. of Science)
(4) 13:30-13:40 HARQ Using Hierarchical Tree-Structured Random Access Channel Identifiers and Random Retransmission Time Back-Off in NOMA Based Random Access RCS2022-32 Katsuya Yanai, Takanori Hara (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
(5) 13:40-13:50 Repetition-Based NOMA-HARQ with Adaptive Termination for URLLC RCS2022-33 Go Takita, Takanori Hara (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science)
  13:50-14:05 Break ( 15 min. )
Wed, Jun 15 PM  First Presentation in IEICE Technical Committee Oral 2
Chair: Nobuhiko Miki (Kagawa Univ.)
14:05 - 15:05
(6) 14:05-14:15 Peak Cancellation Signal Generation Considering Variance in Signal Power Among Transmitter Antennas in PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals RCS2022-34 Jun Saito (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
(7) 14:15-14:25 PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals at Multiple-Antenna AF Relay Station Based on Signal Processing at Base Station RCS2022-35 Asuka Kakehashi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
(8) 14:25-14:35 Investigations on TRP Clustering Method in Downlink Cell-Free MIMO Using Layered Partially Non-orthogonal ZF-Based Beamforming RCS2022-36 Daisuke Ishii, Takanori Hara (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
(9) 14:35-14:45 Autonomous Decentralized User Association Method to Maximize Integrated System Throughput Considering Coexistence of Multiple Services RCS2022-37 Kazuma Matsumoto, Takanori Hara (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science)
(10) 14:45-14:55 Investigation of Distributed Probabilistic Control for Joint Optimization of Base Station Activation and Cell Range Expansion RCS2022-38 Takehiro Ueda, Kenichi Higuchi (Tokyo Univ. of Science)
(11) 14:55-15:05 Activation Control of Base Stations Based on Distributed DQN for Heterogeneous Networks RCS2022-39 Daiki Kato (Tokyo Univ. of Science), Yuto Muroki, Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
  15:05-15:35 Break ( 30 min. )
Wed, Jun 15 PM  First Presentation in IEICE Technical Committee Poster 1
15:35 - 17:15
  - Poster presentation regarding 11 presentations in the sessions of First Presentation in IEICE Technical Committee Oral 1 and 2 will be held.
Thu, Jun 16 AM  First Presentation in IEICE Technical Committee Oral 3
Chair: Osamu Muta (Kyushu Univ.)
09:40 - 10:20
(12) 09:40-09:50 A Study on Signal Superposition Using Segmentation for Digital Signage and Image Sensor-Based Visible Light Communication RCS2022-40 Nagisa Oyabu, Kentaro Kobayashi, Wataru Chujo (Meijo Univ.)
(13) 09:50-10:00 Effect of Information Transfer on Consensus Control Quality in CSMA/CA-Based Autonomous Decentralized Control RCS2022-41 Ryota Kimura, Kentaro Kobayashi, Wataru Chujo (Meijo Univ.)
(14) 10:00-10:10 Secure Precoded OFDM Transmission Using Randomized Unitary Matrix RCS2022-42 Naoki Isono, Kengo Ando, Koji Ishibashi (UEC)
(15) 10:10-10:20 Iterative Active User Detection for Grant-Free Non-Orthogonal Multiple Access in The Presence of Carrier Frequency Offsets RCS2022-43 Kohei Ueda (UEC), Takanori Hara (TUS), Koji Ishibashi (UEC)
  10:20-10:35 Break ( 15 min. )
Thu, Jun 16 AM  First Presentation in IEICE Technical Committee Oral 4
Chair: Kenichi Higuchi (Tokyo Univ. of Science)
10:35 - 11:25
(16) 10:35-10:45 Performance Evaluation of Radio-Wave Encrypted Modulation Method by Wireless Transmission Experiments RCS2022-44 Yuki Mori, Keisuke Asano, Eiji Okamoto (NITech)
(17) 10:45-10:55 Study on performance improvement of early hybrid automatic repeat request method on 5G URLLC using adaptive modulation and coding RCS2022-45 Kyosuke Sano, Akira Hasegawa, Eiji Okamoto (NITech), Manabu Mikami, Hitoshi Yoshino (SoftBank)
(18) 10:55-11:05 Study on Highly Accurate Beam Tracking Method Using Onboard Spherical Array Antenna for 5G Millimeter Wave Vehicle Communication Systems RCS2022-46 Taisei Kurahashi, Ryo Kato, Eiji Okamoto (NITech)
(19) 11:05-11:15 Direction of Arrival Estimation with Compressed Sensing Using Grid Shifts RCS2022-47 Shudai Kunimoto, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.)
(20) 11:15-11:25 Considerations on IRS Control based on Beamforming for Sub-Terahertz Band Communications RCS2022-48 Shuto Tadokoro, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.)
  11:25-12:45 Lunch ( 80 min. )
Thu, Jun 16 PM  First Presentation in IEICE Technical Committee Poster 2
12:45 - 14:05
  - Poster presentation regarding 9 presentations in the sessions of First Presentation in IEICE Technical Committee Oral 3 and 4 will be held.
  14:05-14:30 Break ( 25 min. )
Thu, Jun 16 PM  RCS3
Chair: Hiraku Okada (Nagoya Univ.)
14:30 - 15:45
(21) 14:30-14:55 Comparison of Performance and Complexity for different Search Methods in Stochastic MIMO Signal Detection RCS2022-49 Hiroki Asumi, Yukiko Kasuga, Kazushi Matsumura, Junichiro Hagiwara, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.)
(22) 14:55-15:20 A study on model parameters for MIMO signal detection using learned AMP RCS2022-50 Mari Miyoshi, Toshihiko Nishimura, Takanori Sato, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara (Hokkaido Univ.)
(23) 15:20-15:45 A study on LLR Synthesis Method for Beam-Domain Local LMMSE Detection in mmWave Large MIMO RCS2022-51 Takumi Yoshida, Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.)
  15:45-16:00 Break ( 15 min. )
Thu, Jun 16 PM  Invited Talk
Chair: Kenichi Higuchi (Tokyo Univ. of Science)
16:00 - 16:50
(24) 16:00-16:50 [Invited Talk]
Investigation on Positioning Device and Its Performance for Indoor Private System RCS2022-52
Nobuhiko Miki (Kagawa Univ.)
Fri, Jun 17 AM  First Presentation in IEICE Technical Committee Oral 5
Chair: Tomoya Tandai (Toshiba)
09:00 - 09:50
(25) 09:00-09:10 An improvement of Application UI of Harmful Birds and Beasts Capture Work Support System for the Usability RCS2022-53 Misa Ishikawa, Shinji Chiba (NIT, Sendai)
(26) 09:10-09:20 Development of a Wide Area Water Level Monitoring System for Remote Monitoring Important Reservoirs as Disaster Prevention RCS2022-54 Hibiki Kudo, Shinji Chiba (NIT, Sendai)
(27) 09:20-09:30 A Study on Indoor Location Estimation Based on Complex-Domain Super MDS Method Using Time Series Information RCS2022-55 Yuya Nishi, Takumi Takahashi (Osaka univ.), Hiroki Iimori, Giuseppe Abreu (JUB), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka univ.)
(28) 09:30-09:40 A study on Joint Channel and Data Estimation via Parametric Bilinear Inference for OTFS Transmission RCS2022-56 Kengo Furuta, Kenta Ito, Takumi Takahashi (Osaka Univ), Shinsuke Ibi (Doshisha Univ), Seiichi Sampei (Osaka Univ)
(29) 09:40-09:50 A Study on Expectation Propagation-based Iterative Detection for Overloaded MIMO in Coded Systems RCS2022-57 Takuma Kobayashi, Takumi Takahashi, Kenta Ito (Osaka Univ.), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.)
  09:50-10:05 Break ( 15 min. )
Fri, Jun 17 AM  First Presentation in IEICE Technical Committee Oral 6
Chair: Toshihiko Nishimura (Hokkaido Univ.)
10:05 - 10:45
(30) 10:05-10:15 A Study on Irregular Sparse Superposition Code for Massive NOMA Detection RCS2022-58 Shinya Oishi, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.)
(31) 10:15-10:25 A Study on Digital RF Aided Blind Self Interference Canceller for In-Band Full-Duplex RCS2022-59 Nana Shimomura, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.)
(32) 10:25-10:35 A Study on Support Vector Classification-Aided Regression with Ensemble Learning for GNSS Positioning RCS2022-60 Shugo Maruyama, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.)
(33) 10:35-10:45 A Study on Data-Driven Fine-Tuning for ICA-Aided Blind Signal Separation RCS2022-61 Taisuke Nogami, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.)
  10:45-11:10 Break ( 25 min. )
Fri, Jun 17 AM  First Presentation in IEICE Technical Committee Poster 3
11:10 - 12:30
  - Poster presentation regarding 9 presentations in the sessions of First Presentation in IEICE Technical Committee Oral 5 and 6 will be held.
  12:30-13:40 Lunch ( 70 min. )
Fri, Jun 17 PM  Express Session
Chair: Shinsuke Ibi (Doshisha Univ.)
13:40 - 14:40
(34) 13:40-14:00 Evaluation of Source Data Selection for CSI Feedback Method based on Deep Transfer Learning in FDD Massive MIMO Systems RCS2022-62 Mayuko Inoue, Tomoaki Ohtsuki (Keio Univ)
(35) 14:00-14:20 Fundamental Considerations on Channel Prediction Based on Multipath Delay and Angle-of-Arrival Estimation for Sub-Terahertz Band Communications RCS2022-63 Daigo Mochizuki, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Junichiro Hagiwara, Takeo Ohgane (Hokkaido Univ.)
(36) 14:20-14:40 Experimental study on an OFDM receiver with 1bit ADCs RCS2022-64 Masato Saito (Ryukyu Univ.), Takaya Yamazato (Nagoya Univ.)
  14:40-14:55 Break ( 15 min. )
Fri, Jun 17 PM  RCS4
Chair: Megumi Kaneko (NII)
14:55 - 16:10
(37) 14:55-15:20 Transformation Functions for Stability-Guaranteed Variable Recursive Filters RCS2022-65 Tian-Bo Deng (Toho Univ.)
(38) 15:20-15:45 A Study on Secret Key Sharing and Randomizing Method Based on Channel State Information and Chaos Theory RCS2022-66 Takumi Abe, Keisuke Asano, Kenta Kato, Eiji Okamoto (Nagoya Institute of Technology), Tetsuya Yamamoto (Panasonic)
(39) 15:45-16:10 Design of Wireless Path Management System to Stabilize Wireless Communication for Mobile Devices RCS2022-67 Taketoshi Nakajima, Fumiko Ohori, Akihiro Amagai, Toru Osuga, Satoko Itaya, Takeshi Matsumura (NICT)
  - Awards Ceremony of First Presentation in Technical Committee

Announcement for Speakers
General TalkEach speech will have 18 minutes for presentation and 7 minutes for discussion.
General Talk (初めての研究会)Each speech will have 10 minutes for presentation.
General Talk (Express)Each speech will have 15 minutes for presentation and 5 minutes for discussion.
Invited TalkEach speech will have 45 minutes for presentation and 5 minutes for discussion.

Contact Address and Latest Schedule Information
RCS Technical Committee on Radio Communication Systems (RCS)   [Latest Schedule]
Contact Address Osamu Nakamura (Sharp)
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