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Technical Committee on Radio Communication Systems (RCS) [schedule] [select]
Chair Eiji Okamoto (Nagoya Inst. of Tech.)
Vice Chair Fumihide Kojima (NICT), Toshihiko Nishimura (Hokkaido Univ.), Tomoya Tandai (Toshiba)
Secretary Tetsuya Yamamoto (Panasonic), Kazushi Muraoka (NEC)
Assistant Koichi Adachi (Univ. of Electro-Comm.), Osamu Nakamura (Sharp), Manabu Sakai (Mitsubishi Electric), Masashi Iwabuchi (NTT), Tatsuki Okuyama (NTT DOCOMO)

Conference Date Wed, Jun 23, 2021 09:30 - 17:00
Thu, Jun 24, 2021 09:30 - 16:50
Fri, Jun 25, 2021 09:00 - 15:50
Topics First Presentation in IEICE Technical Committee, Resource Control, Scheduling, Wireless Communications, etc. 
Conference Place  
Copyright
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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 23 AM 
09:30 - 10:40
(1) 09:30-09:40 Considerations on computational complexity reduction in channel prediction based on multipath separation RCS2021-29 Daigo Mochizuki, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.)
(2) 09:40-09:50 A Comparison of Variational Bayesian and Expectation Propagation Methods for Massive MIMO Signal Detection RCS2021-30 Hiroki Asumi, Junichiro Hagiwara, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Takanori Sato (Hokkaido Univ.)
(3) 09:50-10:00 A basic study on signal detection using learned approximate message passing RCS2021-31 Mari Miyoshi, Wakaba Tsujimoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.)
(4) 10:00-10:10 Experimental Evaluation of Frequency Domain-STBC for UL-NOMA System RCS2021-32 Atsushi Kurosawa, Masafumi Moriyama, Kenichi Takizawa, Takeshi Matsumura, Fumihide Kojima (NICT)
(5) 10:10-10:20 A Study on Throughput Improvement of Adaptive Modulation and Coding based HARQ in 5G URLLC RCS2021-33 Akira Hasegawa, Eiji Okamoto (NIT), Manabu Mikami, Hitoshi Yoshino (SoftBank corp.)
(6) 10:20-10:30 A Study on Performance Improvement of Polar Coded-Radio Wave Encrypted Modulation by CRC Code Concatenation RCS2021-34 Keisuke Asano, Mamoru Okumura, Takumi Abe, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic)
(7) 10:30-10:40 A Study on Secret Key Sharing Using Time-Division Duplex Channel Information in Radio-Wave Encrypted Modulation RCS2021-35 Takumi Abe, Mamoru Okumura, Keisuke Asano, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic)
  10:40-10:50 Break ( 10 min. )
Wed, Jun 23 PM 
10:50 - 12:00
(8) 10:50-12:00  
  12:00-13:00 Lunch Break ( 60 min. )
Wed, Jun 23 PM 
13:00 - 14:10
(9) 13:00-13:10 Efficient HARQ Method Using Hierarchically Structured Physical Channel Identifiers in NOMA-based Random Access for Multi-Packet Reception RCS2021-36 Megumi Asada (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
(10) 13:10-13:20 Investigation of Transmitter Filtering Method for Random Access with Channel Identifier Linked Receiver Beamforming RCS2021-37 Shogo Uchida (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
(11) 13:20-13:30 Investigation on Complexity Reduction in Peak Cancellation Signal-Based PAPR Reduction Method Using Null Space in MIMO Channel RCS2021-38 Kenta Hosoi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
(12) 13:30-13:40 Investigation of PAPR Reduction Using Null Space in MIMO Channel for MIMO-OFDM Signals in Multiple-Antenna AF Relay Transmission RCS2021-39 Yuki Sekiguchi (Tokyo Univ. of Science), Nobuhide Nonaka (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science)
(13) 13:40-13:50 Investigation of NOMA-based High-Efficient and Low-Latency HARQ Method for URLLC RCS2021-40 Ryota Kobayashi (Tokyo Univ. of Science), Yasuaki Yuda (Panasonic), Kenichi Higuchi (Tokyo Univ. of Science)
(14) 13:50-14:00 Denoising-aided Channel Estimation and DNN-based Joint Beamforming and Phase Shift Design in IRS-aided MISO System RCS2021-41 Siyuan Yang, Lu Wang, Mondher Bouazizi, Tomoaki Ohtsuki (Keio Univ.)
(15) 14:00-14:10 MmWave V2I Beam Alignment with Past Beam Information and Time-Series Validation of CVs’ Sum Rate RCS2021-42 Yuta Yamada, Tomoaki Ohtsuki (Keio Univ.)
  14:10-14:20 Break ( 10 min. )
Wed, Jun 23 PM 
14:20 - 15:30
(16) 14:20-15:30  
  15:30-15:45 Break ( 15 min. )
Wed, Jun 23 PM 
15:45 - 17:00
(17) 15:45-16:10 Ambiguous defuzzified Value of Periodic Membership Function RCS2021-43 Takashi Mitsuishi (Univ. of Marketing of Distribution and Science)
(18) 16:10-16:35 Proof of concept of Normally-off type local 5G base station RCS2021-44 Kazutami Arimoto (Okaya.a Prefectural Univ.), Hiroshi Nakamura, Ryuichi Sakamoto, Yuta Suzuki (Univ. of Tokyo), Hideharu Takebe (poco-apoco Networks), Noriaki Yoshikawa, Kensaku Kinosita (Cyber Creative Institute), Tomoyuki Ohya (DOCOMO Technology)
(19) 16:35-17:00 A Study on the Behavior of LLR messages in Damped GaBP for Large-scale Signal Detection under a Correlated Channel RCS2021-45 Daniel Akira Ando, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Junichiro Hagiwara, Takanori Sato (Hokkaido Univ.)
Thu, Jun 24 AM 
09:30 - 10:40
(20) 09:30-09:40 Weight Adjustment in Channel Estimation using Gibbs Sampling for MIMO Systems RCS2021-46 Kenshiro Chuman, Yukitoshi Sanada (Keio Univ.)
(21) 09:40-09:50 Two-Stage Belief Propagation Detection with MMSE Pre-Cancellation for Overloaded MIMO RCS2021-47 Risa Shioi, Takashi Imamura, Yukitoshi Sanada (Keio Univ.)
(22) 09:50-10:00 Macro Cell Switching of Transmit Antennas in Distributed Antenna Transmission RCS2021-48 Takahito Tsukamoto, Yukitoshi Sanada, Go Otsuru (Keio Univ.)
(23) 10:00-10:10 Reduction of Out-of-Band Radiation with Quantized Precoding using Gibbs Sampling in Massive MU-MIMO-OFDM RCS2021-49 Taichi Yamakado, Riki Okawa, Yukithoshi Sanada (Keio Univ.)
(24) 10:10-10:20 A Study on Low-Complexity Large MIMO Detection Based on Beam-Domain Local LMMSE Filters RCS2021-50 Takumi Yoshida, Daichi Shirase, Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.)
(25) 10:20-10:30 An experimental study on the demodulation of 4-PAM signals using 1bit ADC with noise RCS2021-51 Takuto Ohtaguro, Masato Saito (Ryukyu Univ.), Takaya Yamazato (Nagoya Univ.)
(26) 10:30-10:40 Initial Study of Demodulation Method for ITS Visible Light Communication Using Rolling Shutter Image Sensor RCS2021-52 Shunki Kamiya, Takaya Yamazato, Hikaru Okada, Toshiaki Fujii (Nagoya Univ.), Masayuki Kinoshita, Koji Kamakura (Chiba Tech.), Shintaro Arai (Okayama Sci.), Tomohiro Yendo (Nagaoka Tech.)
  10:40-10:50 Break ( 10 min. )
Thu, Jun 24 PM 
10:50 - 12:00
(27) 10:50-12:00  
  12:00-13:00 Lunch ( 60 min. )
Thu, Jun 24 PM 
13:00 - 14:10
(28) 13:00-13:10 A Study on Recurrent Neural Network Aided GNSS Positioning RCS2021-53 Kohei Nishioka, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.)
(29) 13:10-13:20 A Study on Gaussian Belief Propagation Detector for High-Dimensional OTFS Modulation RCS2021-54 Yuya Ito, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.), Noboru Osawa, Kosuke Yamazaki, Yoji Kishi (KDDI Research)
(30) 13:20-13:30 A Study on Deep Unfolding-Aided Belief Propagation for Error Correction Decoding of CRC Code RCS2021-55 Qilin Zhang, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.)
(31) 13:30-13:40 Comparison of Differential OFDM Systems Employing Multiple Differential Detection with Channel Prediction in Doubly Selective Channels RCS2021-56 Taichi Fujita, Kota Iwamoto, Hiroshi Kubo (Ritsumeikan Univ.)
(32) 13:40-13:50 A Transmission Efficiency Improvement Scheme for Software Acoustic MODEMs of Differential OFDM RCS2021-57 Koki Toyoda, Hiroshi Kubo (Ritsumeikan Univ.)
(33) 13:50-14:00 A Study on How to Optimize the Transmission Power of pico-eNB in Multiband HetNets RCS2021-58 Ayumi Yoneyama (Kogakuin Univ.), Satoshi Suyama, Takahiro Asai (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.)
(34) 14:00-14:10 Performance Improvement Method Using Multiple Photodetectors for an Optical Wireless CDMA System RCS2021-59 Taiga Kasukabe, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama (Nagoya Univ.)
  14:10-14:20 Break ( 10 min. )
Thu, Jun 24 PM 
14:20 - 15:30
(35) 14:20-15:30  
  15:30-16:00 Break ( 30 min. )
Thu, Jun 24 PM 
16:00 - 16:50
(36) 16:00-16:50 [Invited Talk]
Reliable Federated Learning for Mobile Networks RCS2021-60
Dusit Niyato (NTU)
Fri, Jun 25 AM 
09:00 - 09:50
(37) 09:00-09:10 Measurement of Radio Wave Propagation Characteristics for Inspections of Power Transmission Lines by Using Multicopters RCS2021-61 Tekkann Okuda, Hiraku Okada (Nagoya Univ.), Hiroki Tanaka, Toshihiro Fujiwara (Chubu Electric Power), Chedlia Ben Naila, Masaaki Katayama (Nagoya Univ.)
(38) 09:10-09:20 User Throughput of Multiband HetNet using 28 GHz Band against Fading Channel Models RCS2021-62 Shoko Nishimura, Hiroyuki Otsuka (Kogakuin Univ)
(39) 09:20-09:30 QoS-aware Low-complexity User Pairing Based on Compressed Sensing in Downlink NOMA RCS2021-63 Tomofumi Makita, Osamu Muta (Kyushu Univ.)
(40) 09:30-09:40 Experimental Evaluation of Frequency-domain Feature Selection for CSI-based Object Detection in Wireless LAN Systems RCS2021-64 Kazuki Noguchi, Osamu Muta (Kyushu Univ.), Tomoki Murakami, Shinya Otsuki (former NTT)
(41) 09:40-09:50 A study on antenna polarization plane for UL/DL drone access network RCS2021-65 Takuma Okada, Khanh Tran Gia (Tokyo Tech)
  09:50-10:00 Break ( 10 min. )
Fri, Jun 25 PM 
10:00 - 10:50
(42) 10:00-10:10 A Study on Phase-Noise-Aware LLR Calculation for Millimeter-wave MIMO Systems with High-Order Modulation RCS2021-66 Daiki Wakumoto, Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.)
(43) 10:10-10:20 A Study on Suppression of Self-noise Propagation in Gaussian BP and GAMP for Correlated MIMO Detection RCS2021-67 Ryota Tamaki, Kenta Ito, Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doushisya Univ.), Seiichi Sanpei (Osaka Univ.)
(44) 10:20-10:30 A Study on Deep Unfolding-Aided Quantized AMP for High-Dimensional Signal Detection RCS2021-68 Atsunori Shimamura, Takumi Takahashi (Osaka Univ), Shinsuke Ibi (Doshisha Univ), Seiichi Sampei (Osaka Univ)
(45) 10:30-10:40 A Study on Quantization Noise-Aware Gaussian Belief Propagation for Large MIMO Detection with Low-Resolution ADCs RCS2021-69 Itsuki Watanabe, Takumi Takahashi (Osaka Univ), Shinsuke Ibi (Doshisha Univ), Seiichi Sampei (Osaka Univ)
(46) 10:40-10:50 Evaluation of Latency Characteristics in Indoor Environments Using Private LTE RCS2021-70 Zhao Wang, Issei Makino (Kagawa Univ.), Junji Terai (STNet,Inc.), Nobuhiko Miki (Kagawa Univ.)
  10:50-11:00 Break ( 10 min. )
Fri, Jun 25 PM 
11:00 - 12:10
(47) 11:00-12:10  
  12:10-13:10 Lunch ( 60 min. )
Fri, Jun 25 PM 
13:10 - 14:25
(48) 13:10-13:35 Multiple Measurement Vector Approximate Message Passing Without Prior Information of Channels for Grant-Free Non-Orthogonal Multiple Access RCS2021-71 Takanori Hara, Koji Ishibashi (The Univ. of Electro-Communications)
(49) 13:35-14:00 Tensor-aided Beamforming Design for Full Duplex Cell-Free MIMO RCS2021-72 Kengo Ando (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC), Giuseppe Abreu (JUB)
(50) 14:00-14:25 A Theoretical Study on Suboptimal Joint Transmit-Receive Diversity In Correlated Rayleigh Fading Channels RCS2021-73 Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.)
  14:25-14:35 Break ( 10 min. )
Fri, Jun 25 PM 
14:35 - 15:50
(51) 14:35-15:00 Outdoor Experimental Trials of 28 GHz-Band Base Station Cooperation Technologies in High-Mobility Environments with Mobile Stations RCS2021-74 Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai (NTT DOCOMO)
(52) 15:00-15:25 Null-Steering Technique in HAPS Systems for Spectrum Sharing with Terrestrial Mobile Networks RCS2021-75 Koji Tashiro, Kenji Hoshino, Atsushi Nagate (SoftBank)
(53) 15:25-15:50 Evaluation of Throughput Characteristics in Indoor Environments Using Private LTE RCS2021-76 Issei Makino (Kagawa Univ.), Junji Terai (STNet,Inc), Nobuhiko Miki (Kagawa Univ.)
  -  

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.
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 E-:r_- 


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