IEICE Technical Report

Online edition: ISSN 2432-6380

Radio Communication Systems

Workshop Date : 2021-10-21 - 2021-10-22 / Issue Date : 2021-10-14

RCS2021-118
Performance Evaluation on CPU Function Placement using Virtualized RAN to Cell Free-massive MIMO
Naoki Aihara, Akio Ikami, Takahide Murakami, Yu Tsukamoto, Hiroyuki Shinbo (KDDI Research)
pp. 1 - 6

RCS2021-119
Performance Evaluation of Scalable Cell-Free Massive MIMO Systems with Multiple CPUs Subject to Backhaul Capacity Limitation
Masaaki Ito, Issei Kanno, Kosuke Yamazaki (KDDI Research), Kengo Ando, Shuto Fukue (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC)
pp. 7 - 12

RCS2021-120
Beamforming Design and Secrecy capacity analysis for Cell-Free massive MIMO
Kengo Ando (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC)
pp. 13 - 18

RCS2021-121
A Study on Resource Allocation and Beamforming Design via Geometric Mean Maximization for Cell-free Massive MIMO Systems with Dynamic TDD
Shuto Fukue (UEC), Hiroki Iimori, Giuseppe Abreu (JUB), Koji Ishibashi (UEC)
pp. 19 - 24

RCS2021-122
Initial access beam search method with variable beam width according to the area size
Takuto Arai, Tatsuhiko Iwakuni, Syuki Wai, Daisei Uchida, Naoki Kita (NTT)
pp. 25 - 30

RCS2021-123
A New Beam Search Based on Combination History of Selected Beams among Antennas for Distributed Antenna System
Shuki Wai, Tatsuhiko Iwakuni, Takuto Arai, Daisei Uchida, Naoki Kita (NTT)
pp. 31 - 36

RCS2021-124
Inter-User Distance Estimation in 5G mmWave Networks using Beam-Based Fingerprints
Mondher Bouazizi, Siyuan Yang, Tomoaki Ohtsuki (Keio Univ.)
pp. 37 - 42

RCS2021-125
A Study on Intelligent Reflecting Surface (IRS) Aided Cell-Free Network -- IRS Reflection Coefficients Optimization by Quantum Computing for MIMO Channel Capacity Maximization --
Takahiro Ohyama (PSNRD), Yuichi Kawamoto, Nei Kato (Tohoku Univ.)
pp. 43 - 48

RCS2021-126
[Invited Talk] Generalization of a joint transmit-receive diversity and its application to multi-user MIMO communications
Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.)
pp. 49 - 54

RCS2021-127
[Poster Presentation] Application of LoRa Module to Experimental Subjects
Nobuhiko Miki (Kagawa Univ.)
p. 55

RCS2021-128
[Poster Presentation] Efforts to construct wireless experiment systems on in-band full-duplex
Yuichi Miyaji, Hideyuki Uehara (Toyohashi Univ. of Tech.)
p. 56

RCS2021-129
[Poster Presentation] A Study on Bayesian Receiver Design via Bilinear Inference for Scalable Cell-Free Massive MIMO
Takumi Takahashi (Osaka Univ.), Hiroki Iimori (JUB), Kengo Ando, Koji Ishibashi (UEC), Shinsuke Ibi (Doshisha Univ), Giuseppe Abreu (JUB)
pp. 57 - 62

RCS2021-130
[Poster Presentation] Performance Improvement of Multiuser Massive MIMO Null-Space Expansion
Kazuki Maruta (Tokyo Tech), Kabuto Arai, Nobutaka Funaki (Chiba Univ.)
p. 63

RCS2021-131
Coevolutionary Dynamic Cell Optimization Algorithm for HAPS Mobile Communications
Yohei Shibata, Wataru Takabatake, Kenji Hoshino, Atsushi Nagate (SB)
pp. 64 - 69

RCS2021-132
Wireless environment survey for the introduction of automated guided vehicles to manufacturing sites
Akihiro Amagai, Taketoshi Nakajima, Fumiko Ohori, Toru Osuga, Satoko Itaya, Takeshi Matsumura (NICT)
pp. 70 - 75

RCS2021-133
Experimental Study on Tradeoff between Blockage Prediction and Performance of Millimeter-wave Communications with Coordinated Multipoint Transmission
Sota Uchimura (UEC), Hiroki Iimori (JUB), Koji Ishibashi (UEC), Takahide Murakami, Hiroyuki Shinbo (KDDI Research, Inc.)
pp. 76 - 81

RCS2021-134
Performance Evaluation of Two Directions in Base Station Antennas by 28 GHz-Band Outdoor Experiments of Base Station Cooperation Technology in High-Mobility Environments
Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai (NTT DOCOMO)
pp. 82 - 87

RCS2021-135
Signal Design for Two-Dimensional OTFS Index Modulation Over Doubly-Selective Channels With Fractional Doppler
Kazuya Ohira, Koji Ishibashi (UEC)
pp. 88 - 93

RCS2021-136
Physical-Layer Cell Identity Detection Probability for Millimeter Wave Single-Carrier Transmission
Daisuke Inoue, Mamoru Sawahashi (Tokyo City Univ.), Haruhi Echigo, Satoshi Nagata (NTT DOCOMO)
pp. 94 - 99

RCS2021-137
Study on Performance Improvement of Radio-Wave Encrypted Modulation by LLR Clipping
Mamoru Okumura, Keisuke Asano, Takumi Abe, Eiji Okamoto (NIT), Tetsuya Yamamoto (Panasonic)
pp. 100 - 105

RCS2021-138
Performance Improvement of Misaligned Underwater OWC Systems Using MIMO
Hitoshi Ando, Chedlia Ben Naila, Hiraku Okada, Masaaki Katayama (Nagoya Univ.)
pp. 106 - 111

RCS2021-139
[Poster Presentation] Investigation of NOMA-Based Highly-Efficient Low-Latency Random Access
Kenichi Higuchi (Tokyo Univ. of Science)
pp. 112 - 119

RCS2021-140
[Poster Presentation] Display-Camera Visible Light Communications Using Monocular Depth Estimation and Adversarial Example
Hiraku Okada, ChangSeok Lee (Nagoya Univ.), Tadahiro Wada (Shizuoka Univ.), Kentaro Kobayashi (Meijo Univ.), Chedlia Ben Naila, Masaaki Katayama (Nagoya Univ.)
pp. 120 - 121

RCS2021-141
[Poster Presentation] Interference Source Determination Based on History of Transmissions in WLANs
Koji Yamamoto, Mayu Mieda, Sota Kondo (Kyoto Univ.), Takayuki Nishio (Kyoto Univ./Tokyo Tech.), Akihito Taya (Kyoto Univ./Aoyama Gakuin Univ.), Kazuto Yano (ATR)
pp. 122 - 125

RCS2021-142
[Poster Presentation] NTT DOCOMO's Activities for 5G Evolution & 6G
Satoshi Suyama, Tatsuki Okuyama, Nobuhide Nonakaka, Takahiro Asai (NTT DOCOMO)
p. 126

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