Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
RCS, SR, SRW (Joint) |
2024-03-13 13:10 |
Tokyo |
The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Beamforming/Null-steering for Millimeter-wave Transmission in High Mobility Environment Kazuki Maruta, Yuki Sasaki, Sojin Ozawa (Tokyo Univ. of Science), Kazuto Arai (The Univ. of Electro-Communications), Jin Nakazato, Manabu Tsukada (UTokyo) SRW2023-52 |
Spatial multiplexing performance of the multi-user MIMO is deteriorated in the mobility environment, especially using th... [more] |
SRW2023-52 p.39 |
UWT (2nd) |
2024-01-29 17:05 |
Tokyo |
Tokai University Shinagawa Campus (Primary: On-site, Secondary: Online) |
Adaptive Underwater Optical Wireless Communication Network Utilizing Beam Steering for Air/Water Path Switching Kiichiro Kuwahara, Hyuga Nagami, Keita Tanaka, Fumiya Kobori, Ayumu Kariya (Kagawa Univ.), Shogo Hayashida (Sangikyo), Takahiro Kodama (Kagawa Univ.) |
In this research, we introduced an aerial relay node and conducted a full-duplex class 1 eye-safe transmission experimen... [more] |
|
RCS |
2023-06-14 09:30 |
Hokkaido |
Hokkaido University, and online (Primary: On-site, Secondary: Online) |
Study on Subarray Beam Control for Sub-Terahertz-Band MIMO Spatial Multiplexing Naoki Hamada, Toshihiko Nishimura, Takanori Sato, Yasutaka Ogawa, Takeo Ohgane (Hokkaido Univ.) RCS2023-28 |
In 6th generation mobile communication system (6G), the use of sub-Terahertz band (100–300 GHz) is being considered to r... [more] |
RCS2023-28 pp.1-6 |
RCS, SR, SRW (Joint) |
2023-03-03 15:50 |
Tokyo |
Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
Simultaneous Beam Search with Multiple Distributed Antennas for Distributed Antenna System Shuki Wai, Takuto Arai, Tatsuhiko Iwakuni, Daisei Uchida, Naoki Kita (NTT) RCS2022-295 |
Distributed antenna (DA) system using high-frequency bands such as millimeter-wave and sub-terahertz is expected to be o... [more] |
RCS2022-295 pp.249-254 |
RCS, AP, UWT (Joint) |
2022-11-17 11:00 |
Fukuoka |
Kyushu University, and Online (Primary: On-site, Secondary: Online) |
[Invited Talk]
Fundamentals of Orbital Angular Momentum (OAM) Mode Multiplexing Toshihiko Nishimura (Hokkaido Univ.) AP2022-164 RCS2022-177 |
The demand for high-capacity wireless communications is increasing as we move toward the 6G era, which will provide a fu... [more] |
AP2022-164 RCS2022-177 pp.97-102(AP), pp.130-135(RCS) |
RCS |
2022-10-28 09:25 |
Ehime |
Ehime University, and online (Primary: On-site, Secondary: Online) |
Improving Semi-Blind Interference Suppression on Multi-Cell Massive MIMO Systems by Multi-Antenna Users Kazuki Maruta (Tokyo Univ. of Science) RCS2022-142 |
When the number of spatial multiplexing is increased in a Massive MIMO system to increase capacity, the number of orthog... [more] |
RCS2022-142 pp.65-70 |
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] |
2022-07-19 17:00 |
Hokkaido |
Asahikawa Civic Culture Hall (Primary: On-site, Secondary: Online) |
Photodiode-Integrated 8×8 Array-Antenna Module for Analog-RoF Supporting 40-GHz 5G Systems Shinji Nimura, Shota Ishimura, Kazuki Tanaka, Kosuke Nishimura, Ryo Inohara (KDDI Research) EMT2022-31 MW2022-55 OPE2022-34 EST2022-32 MWPTHz2022-29 |
An 8×8 40-GHz beamforming antenna module integrated with PD and RF circuits was developed and demonstrated with the comb... [more] |
EMT2022-31 MW2022-55 OPE2022-34 EST2022-32 MWPTHz2022-29 pp.113-116 |
RCS |
2021-10-21 13:25 |
Online |
Online |
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) RCS2021-123 |
Distributed antenna system using high-frequency bands such as millimeter-wave and sub-terahertz is expected to be one of... [more] |
RCS2021-123 pp.31-36 |
SANE |
2021-08-26 14:00 |
Online |
Online |
A Consideration for Virtual Array in MIMO Radar Hirokazu Kobayashi (Electromagnetic Wave System Lab.) SANE2021-22 |
Multiple-input multiple-output (MIMO) radar that employs multiple antennas to transmit orthogonal waveforms and multiple... [more] |
SANE2021-22 pp.1-6 |
RCS, SR, NS, SeMI, RCC (Joint) |
2021-07-14 09:50 |
Online |
Online |
A Study on The Effect of Correlated Fading on Joint Transmit-receive Diversity and MIMO Spatial Multiplexing Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.) RCS2021-79 |
Joint transmit-receive diversity (JTRD) is one of diversity techniques to mitigate the degradation of communication qual... [more] |
RCS2021-79 pp.13-18 |
RCS, SR, SRW (Joint) |
2021-03-05 16:55 |
Online |
Online |
Compensation for axis misalignment of UCA with OAM beam control Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba) RCS2020-260 |
In recent years, mobile data traffic has increased explosively due to increasing wireless devices. Capacity enhancement ... [more] |
RCS2020-260 pp.261-266 |
RCS |
2020-10-22 11:25 |
Online |
Online |
Multi-user MIMO coordinated with user-wise joint transmit-receive diversity using linear antenna array at BS Fumiyuki Adachi, Ryo Takahashi (Tohoku Univ.) RCS2020-96 |
Multi-user MIMO spatial multiplexing has been recognized as an indispensable technique to significantly improve the spec... [more] |
RCS2020-96 pp.24-29 |
NS, RCS (Joint) |
2019-12-19 13:00 |
Tokushima |
Tokushima Univ. |
[Invited Lecture]
Fujitsu's Approach to Millimeter-wave Subarray Beamforming Masahiko Shimizu, Hikaru Ishikawa (Fujitsu) NS2019-140 RCS2019-243 |
Fujitsu's approaches on millimeter-wave beamforming are described. At present, the beam forming of the subarray type see... [more] |
NS2019-140 RCS2019-243 pp.37-42 |
AP, RCS (Joint) |
2019-11-20 11:20 |
Saga |
Saga Univ. |
[Encouragement Talk]
Low-Complexity User Selection Algorithm for High SHF-Band Multiuser Massive MIMO Using Hybrid Beamforming Nobuhide Nonaka, Kazushi Muraoka, Satoshi Suyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2019-205 |
The 5th Generation (5G) radio access network will introduce Massive MIMO technology at higher frequency bands with wider... [more] |
RCS2019-205 pp.13-18 |
RCS |
2019-10-24 10:20 |
Kanagawa |
Yokosuka Research Park |
A Study of New Modulation method for providing solutions to issues of 5G system
-- Proposal of basic extension method of beamforming function and MIMO function -- Ayano Iida, Kousuke Okubo, Kou Yamaguchi, Takahisa Miyata, Rin Minamii, Yutaka Kobayashi (Yokosuka highschool), Gen-ichiro Ohta (YRP) RCS2019-180 |
The new modulation method "MARIA method" for 6G invented last year [8] was renovated in response to the main issues of 5... [more] |
RCS2019-180 pp.13-18 |
RCS, SAT (Joint) |
2019-08-23 09:55 |
Aichi |
Nagoya University |
Outdoor Experimental Trials on Multi-User MIMO Transmission for High SHF Wide-band Massive MIMO in 5G Manabu Sakai, Kenichiro Kamohara, Hiroki Iura, Kazuaki Ishioka, Masayuki Nakazawa, Akihiro Okazaki (MELCO), Nobuhide Nonaka, Satoshi Suyama, Jun Mashino (DOCOMO), Atsushi Okamura (MELCO), Yukihiko Okumura (DOCOMO) RCS2019-162 |
This paper reports outdoor experimental trial results of multi-user massive multiple-input multiple-output (MIMO) with 5... [more] |
RCS2019-162 pp.85-90 |
SeMI, RCS, NS, SR, RCC (Joint) |
2019-07-11 10:00 |
Osaka |
I-Site Nanba(Osaka) |
Performance Evaluation of Downlink Multi-user MIMO with Moving User Equipment using Low-SHF-Band C-RAN Massive MIMO System Jiang Yi, Kohei Izui, Kenichiro Yamazaki (NEC), Tatsuki Okuyama, Kazushi Muraoka, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO, INC.) RCS2019-111 |
In order to tackle rapid increase of data traffic and diversification of mobile service, 5G wireless access system intro... [more] |
RCS2019-111 pp.57-62 |
PN |
2019-04-26 15:45 |
Tokyo |
The University of Electro-Communication, Build E-3, Hall 301 |
[Invited Talk]
Laguerre Gaussian mode multiplexing system in optical wireless communication Kayo Ogawa (Japan Women's Univ.) PN2019-5 |
With the rapid increase in communication traffic, the capacities of existing multiplexing methods have reached the limit... [more] |
PN2019-5 pp.25-30 |
RCS, SR, SRW (Joint) |
2019-03-07 12:25 |
Kanagawa |
YRP |
[Technology Exhibit]
Low-SHF-Band Massive MIMO Active Antenna System for Capacity Enhancement in 5G Yasushi Maruta, Mochizuki Takuji (NEC) RCS2018-310 SR2018-131 SRW2018-61 |
To achieve capacity enhancement and low power consumption, Massive MIMO has drawn attention as a key technology. Our res... [more] |
RCS2018-310 SR2018-131 SRW2018-61 p.149(RCS), p.61(SR), p.29(SRW) |
RCS, SR, SRW (Joint) |
2019-03-08 16:05 |
Kanagawa |
YRP |
Performance Evaluation of Inter Access Point Coordinated Scheduling based on the Real Propagation Channel Estimation Data measured by Low-SHF-Band C-RAN Massive MIMO System for 5G Yuki Kogure, Shinya Nagasawa, Toshihiro Hayata, Tooru Kikuchi (NEC), Tatsuki Okuyama, Kazushi Muraoka, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-331 |
We focused on the spatial multiplexing using low super-high-frequency (SHF) band C-RAN massive MIMO System and the Inter... [more] |
RCS2018-331 pp.255-259 |