Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
MIKA (3rd) |
2023-10-10 15:35 |
Okinawa |
Okinawa Jichikaikan (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Study of wireless access technique using multiple terminal cooperation Tomoya Kageyama, Takayuki Yamada, Riichi Kudo (NTT), Yuya Aoki, Yoshifumi Morihiro (NTT DOCOMO) |
With increases in demand for mobile traffic, high-frequency bands such as millimeter waves (mmWave) are being utilized. ... [more] |
|
RCS, SAT (Joint) |
2023-09-01 14:30 |
Nagano |
Naganoken Nokyo Building, and online (Primary: On-site, Secondary: Online) |
5G Experimental Trial Using Autonomous Mobile Robots at a Manufacturing Site Atsuya Nakamura, Satoshi Suyama, Takayuki Yamada (NTT DOCOMO), Shinji Kobayashi, Hiroaki Yamada (OMRON), Goro Ikeda (Nokia) RCS2023-127 |
The 5th generation mobile communication system has already been commercially introduced worldwide, and commercial servic... [more] |
RCS2023-127 pp.131-136 |
AP, SANE, SAT (Joint) |
2023-07-14 16:50 |
Hokkaido |
The Citizen Activity Center (Primary: On-site, Secondary: Online) |
[Invited Lecture]
6G Simulator using Real Environment Model based on Point Cloud Data Koshiro Kitao, Satoshi Suyama, Mitsuki Nakamura, Takahiro Tomie, Kiichi Tateishi, Takayuki Yamada (NTT DOCOMO) AP2023-65 |
[more] |
AP2023-65 pp.187-191 |
RCS |
2023-06-16 09:40 |
Hokkaido |
Hokkaido University, and online (Primary: On-site, Secondary: Online) |
Considerations on Self-Interference Canceller using DMRS in Full-Duplex Mobile Communications Takumi Yasaka (Kogakuin Univ.), Takayuki Yamada, Satoshi Suyama (NTT DOCOMO), Hiroyuki Otsuka (Kogakuin Univ.) RCS2023-66 |
Full-duplex mobile communications have been discussed as one of the duplex technologies to increase the spectral efficie... [more] |
RCS2023-66 pp.224-228 |
RCS |
2023-06-16 16:00 |
Hokkaido |
Hokkaido University, and online (Primary: On-site, Secondary: Online) |
28 GHz-Band Experimental Trial Using Multiple Transmissive Metasurfaces and Beamforming Kenta Goto, Satoshi Suyama, Takayuki Yamada (DOCOMO), Keisuke Arai, Osamu Kagaya (AGC) RCS2023-78 |
Toward 5G Evolution & 6G, “New Radio Network Topology (NRNT)” which is distributed in the spatial domain is considered t... [more] |
RCS2023-78 pp.294-299 |
RCS, SR, SRW (Joint) |
2023-03-01 14:50 |
Tokyo |
Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
Transmission performance improvement of terminal-collaborated MIMO reception based on subband-based terminal selection Ryosuke Kanda, Hidekazu Murata (Yamaguchi Univ.), Satoshi Suyama, Takayuki Yamada (NTT DOCOMO, INC.) RCS2022-259 |
In terminal-collaborated MIMO (Multiple-Input Multiple-Output) reception, where reception is performed collaboratively w... [more] |
RCS2022-259 pp.72-76 |
RCS, SR, SRW (Joint) |
2023-03-01 16:40 |
Tokyo |
Tokyo Institute of Technology, and Online (Primary: On-site, Secondary: Online) |
A Study of Cross-Link Interference Mitigation with Cell Clustering on Dynamic TDD system Kiichi Tateishi, Takayuki Yamada, Satoshi Suyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2022-263 |
[more] |
RCS2022-263 pp.94-99 |
RCS |
2022-10-28 12:10 |
Ehime |
Ehime University, and online (Primary: On-site, Secondary: Online) |
Concept and Issues of New Radio Network Topology for 5G Evolution & 6G Masashi Iwabuchi (NTT), Satoshi Suyama (NTT DOCOMO), Takuto Arai (NTT), Mitsuki Nakamura, Kenta Goto (NTT DOCOMO), Riku Ohmiya, Daisei Uchida (NTT), Takayuki Yamada (NTT DOCOMO), Tomoaki Ogawa (NTT) RCS2022-148 |
[more] |
RCS2022-148 pp.101-106 |
ED, THz [detail] |
2019-12-23 15:40 |
Miyagi |
|
[Invited Talk]
Orbital Angular Momentum Multiplexing Technology
-- High Capacity Wireless Communication and Device Perspectives -- Doohwan Lee, Hirofumi Sasaki, Yasunori Yagi, Tomoki Semoto, Takayuki Yamada, Jun Mashino, Takashi Shimizu (NTT) ED2019-81 |
Recently, wireless communication using Orbital Angular Momentum (OAM) has drawn much attention as an emerging candidate ... [more] |
ED2019-81 p.21 |
RCS, SAT (Joint) |
2019-08-22 13:30 |
Aichi |
Nagoya University |
[Invited Lecture]
Orbital Angular Momentum Multiplexing Technology
-- High Capacity Point-to-Point Wireless Communication Perspective -- Doohwan Lee, Hirofumi Sasaki, Yasunori Yagi, Takayuki Yamada, Takashi Shimizu (NTT) SAT2019-25 RCS2019-154 |
Recently, wireless communication using Orbital Angular Momentum (OAM) has drawn much attention as an emerging candidate ... [more] |
SAT2019-25 RCS2019-154 p.45 |
SeMI, RCS, NS, SR, RCC (Joint) |
2019-07-11 10:40 |
Osaka |
I-Site Nanba(Osaka) |
[Poster Presentation]
An Experiment of 200 Gbps, 21 Streams Wireless Transmission Using OAM-MIMO Multiplexing with Polarization in 28 GHz Band Yasunori Yagi, Hirofumi Sasaki, Takayuki Yamada, Doohwan Lee, Takashi Shimizu (NTT) RCC2019-30 NS2019-66 RCS2019-123 SR2019-42 SeMI2019-39 |
The orbital angular momentum (OAM) multiplexing has been drawing much attention in wireless transmission systems. The OA... [more] |
RCC2019-30 NS2019-66 RCS2019-123 SR2019-42 SeMI2019-39 pp.99-100(RCC), pp.125-126(NS), pp.121-122(RCS), pp.131-132(SR), pp.113-114(SeMI) |
SR |
2019-05-31 10:30 |
Tokyo |
Tokyo Big Sight |
[Invited Talk]
Toward terabit-class wireless transmission: OAM wireless multiplexing technology Doohwan Lee, Hirofumi Sasaki, Yasunori Yagi, Takayuki Yamada, Takashi Shimizu (NTT) SR2019-11 |
[more] |
SR2019-11 p.69 |
RCS, SR, SRW (Joint) |
2019-03-08 11:20 |
Kanagawa |
YRP |
[Invited Lecture]
Experimental Investigation of OAM-MIMO multiplexing technique for ultra high capacity wireless transmission Hirofumi Sasaki, Yasunori Yagi, Yakana Kaho, Takayuki Yamada, Doohwan Lee, Takashi Shimizu (NTT) SR2018-140 |
Recently, communication systems using beams that carry orbital angular momentum (OAM) have gathered much attention for u... [more] |
SR2018-140 pp.111-116 |
CQ |
2016-05-24 10:50 |
Fukuoka |
Kyushu University |
Model Based Radio Environment Recognition and Prediction Techniques for Quality Management Wireless Communication System in Spectrum Sharing Scenarios Hirofumi Sasaki, Takayuki Yamada, Doohwan Lee, Tadao Nakagawa (NTT) CQ2016-14 |
[more] |
CQ2016-14 pp.9-14 |
RCS, CCS, SR, SRW (Joint) |
2016-03-04 14:30 |
Tokyo |
Tokyo Institute of Technology |
[Invited Lecture]
Broadband Spectrum Sensing Platform based on Received Waveform Cross-correlation using Distributed Sensors Doohwan Lee, Takayuki Yamada, Hiroyuki Shiba, Yo Yamaguchi, Takana Kaho, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2015-117 |
Rapid increase in mobile traffic due to the spread of smartphones will cause the frequency shortage. Frequency range fro... [more] |
SR2015-117 p.171 |
MoNA, IN (Joint) |
2015-11-18 11:10 |
Kumamoto |
Kumamoto University |
A Study of Medium Access Control Scheme for WLAN with Large Propagation Delay Coexisting with Legacy WLAN Kaito Funabiki, Takayuki Nishio, Masahiro Morikura (Kyoto Univ.), Daisuke Murayama, Takayuki Murayama, Katsuya Nakahira (NTT) MoNA2015-32 |
Long propagation delay is caused in long distance wireless local area networks (WLANs) and WLANs with a radio-over-fiber... [more] |
MoNA2015-32 pp.59-64 |
SRW |
2015-10-28 14:15 |
Tokyo |
Kikai-Sinko-Kaikan Bldg. (Tokyo) |
A Statistical Radio Environment Recognition Technique Based on State Transition Model in Heterogeneous Wireless Network Hirofumi Sasaki, Takayuki Yamada, Doohwan Lee, Tadao Nakagawa (NTT) SRW2015-52 |
[more] |
SRW2015-52 pp.7-12 |
SR |
2015-05-28 15:15 |
Hyogo |
Akashi-Sangyou-Koryu-Center |
Rario Environment Statistical Recognition Based on State Transition Model with Considering of Intersystem Interference in Spectrum Sharing Scenarios Hirofumi Sasaki, Takayuki Yamada, Jun Mashino, Takatoshi Sugiyama (NTT) SR2015-6 |
In heterogeneous wireless networks with spectrum sharing, radio wave collisions often occur randomly by not only intra-s... [more] |
SR2015-6 pp.31-38 |
SR |
2015-05-29 13:25 |
Hyogo |
Akashi-Sangyou-Koryu-Center |
Performance Evaluation of Waveform Cross-Correlation Based Cooperative Sensing under Multipath Fading Environments Takayuki Yamada, Doohwan Lee, Yo Yamaguchi, Tadao Nakagawa (NTT) SR2015-12 |
[more] |
SR2015-12 pp.73-78 |
SR |
2014-10-31 13:00 |
Overseas |
I2R, Singapore |
[Technology Exhibit]
Broadband Spectrum Sensing Platform Based on Received Waveform Cross-correlation using Distributed Sensors Takayuki Yamada, Doohwan Lee, Hiroyuki Shiba, Yo Yamaguchi, Takana Kaho, Tadao Nakagawa, Kazuhiro Uehara (NTT) SR2014-88 |
Rapid increase in mobile traffic due to the spread of smartphones will cause the frequency shortage. Frequency range fro... [more] |
SR2014-88 pp.169-170 |