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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, SR, SRW (Joint) |
2024-03-14 10:45 |
Tokyo | The University of Tokyo (Hongo Campus), and online (Primary: On-site, Secondary: Online) |
A Proposal of Millimeter-wave Digital Beam Forming Antenna for Transmit Using Optical Fiber Link with Band-Pass Delta Sigma Modulation Satoshi Tsukamoto, Tomoyuki Furuichi, Noriharu Suematsu (Tohoku Univ.)  SR2023-98 |
In order to reduce the size and cost of millimeter-wave distributed antenna systems for 5G terrestrial networks and sat-... [more] | SR2023-98 pp.52-56 |
| RCS | 2022-06-16 15:20 |
Okinawa | University of the Ryukyus, Senbaru Campus and online (Primary: On-site, Secondary: Online) |
A study on LLR Synthesis Method for Beam-Domain Local LMMSE Detection in mmWave Large MIMO Takumi Yoshida, Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.) RCS2022-51 |
As a low-complexity multi-user detector for uplink millimeter-wave (mmWave) large multi-user MIMO (Multi-Input Multi-Out... [more] | RCS2022-51 pp.162-167 |
| RCS, SR, SRW (Joint) |
2022-03-03 10:20 |
Online | Online | Deployment of mmWave Beyond 5G Testbed and high-precision propagation measurement system including relay stations Keishi Tokugawa, Kazuki Maruta, Keiichi Kubota, Kei Sakaguchi (Tokyo Tech), Jin Nakazato, Mitsuhiro Kuchitsu, Soh Masuko (RMI) RCS2021-272 |
In the 5th generation mobile communication (5G), which is now in service in many countries around the world, higher spee... [more] | RCS2021-272 pp.114-119 |
| RCS | 2021-06-24 10:10 |
Online | Online | A Study on Low-Complexity Large MIMO Detection Based on Beam-Domain Local LMMSE Filters Takumi Yoshida, Daichi Shirase, Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.) RCS2021-50 |
In large multi-input multi-output (MIMO) systems, linear minimum mean square error (LMMSE) filters are often utilized as... [more] | RCS2021-50 pp.127-132 |
| RCS, SR, SRW (Joint) |
2021-03-05 10:30 |
Online | Online | Performance Evaluation of Base Station Cooperation Technologies in Millimeter-Wave Bands at Variable Base Station Deployments under High-Mobility Environments Tatsuki Okuyama, Satoshi Suyama, Nobuhide Nonaka, Takahiro Asai (NTT DOCOMO) RCS2020-249 |
Commercial services of 5th generation mobile communication system (5G) are expanding. In 5G, Massive MIMO -based beamfor... [more] | RCS2020-249 pp.207-211 |
| NS, RCS (Joint) |
2020-12-18 13:50 |
Online | Online | [Invited Lecture]
A Study on Higher-Order Large MIMO Detection via Concatenated Beam- and Antenna- Domain Layered BP Takumi Takahashi (Osaka Univ.), Shinsuke Ibi (Doshisha Univ.), Seiichi Sampei (Osaka Univ.) NS2020-102 RCS2020-149 |
In large multi-user multi-input multi-output systems, the computational cost and circuit scale on the base station (BS) ... [more] | NS2020-102 RCS2020-149 pp.79-84 |
| SAT, RCS (Joint) |
2020-08-21 11:20 |
Online | Online | [Encouragement Talk]
A Study on Dual Control of Transmit Power and Beam Directivity for Flexible Resource Allocation in HTS Communication System Masaki Takahashi, Yuichi Kawamoto, Nei Kato (Tohoku Univ.) SAT2020-21 |
With the diversification of communication applications in the wireless communication environment, high-throughput satell... [more] | SAT2020-21 pp.59-64 |
| 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 15:00 |
Kanagawa | YRP | Research and Development of Low-SHF-Band Massive Element Antennas Technologies for 5G Yasushi Maruta, Jun Shikida, Naoto Ishii (NEC), Tatsuki Okuyama, Kazushi Muraoka, Satoshi Suyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2018-329 |
This paper describes our activities related to massive multi input and multi output (MIMO) for use in 5G radio access ne... [more] | RCS2018-329 pp.243-248 |
| RCS, SR, SRW (Joint) |
2019-03-08 15:40 |
Kanagawa | YRP | Performance Evaluation in the Outdoor Mobile Environment with Low-SHF-Band Massive Element Antennas for 5G Daisuke Nose, Tomohiro Kikuma, Yasushi Maruta (NEC), Tatsuki Okuyama, Kazushi Muraoka, Satoshi Suyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2018-330 |
We pay attention to the technology of Low- Super High Frequency (SHF) -Band Massive Multiple-Input Multiple-Output (MIM... [more] | RCS2018-330 pp.249-254 |
| RCS, AP (Joint) |
2018-11-22 15:50 |
Okinawa | Okinawa Industry Support Center | Performance Evaluation of Low-SHF-Band Digital Beamforming in High-Mobility Experimental Trial Tatsuki Okuyama, Kazushi Muraoka (NTT DOCOMO), Daisuke Nose, Tomohiro Kikuma, Yasushi Maruta (NEC), Satoshi Suyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2018-215 |
The fifth-generation (5G) mobile communication system utilizes Massive MIMO using many number of antenna elements in hig... [more] | RCS2018-215 pp.211-216 |
| RCS | 2018-10-18 15:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Invited Lecture]
Indoor DL MU-MIMO Characteristics with 5G Low SHF band Massive MIMO Antenna Yasushi Maruta, Daisuke Nose, Toshihiro Hayata, Yi Jiang, Tomohiro Kikuma, Kenichiro Yamazaki, Toshifumi Sato (NEC), Tatsuki Okuyama, Kazushi Muraoka, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-162 |
To achieve capacity enhancement and low power consumption for 5G, Massive multi input and multi output (MIMO) has drawn ... [more] | RCS2018-162 p.67 |
| RCS, SR, SRW (Joint) |
2018-03-01 11:10 |
Kanagawa | YRP | Performance Evaluation of Digital Beamforming by Outdoor Trials for 5G Massive MIMO in Low SHF Bands Tatsuki Okuyama (NTT DOCOMO), Kohei Izui, Kenichiro Yamazaki (NEC), Satoshi Suyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2017-352 |
The fifth-generation (5G) mobile communication system has attracted much attention to provide various kinds of mobile se... [more] | RCS2017-352 pp.203-208 |
| RCS, SR, SRW (Joint) |
2018-03-01 11:50 |
Kanagawa | YRP | [Technology Exhibit]
Low-SHF-Band Massive MIMO Active Antenna System for 5G Yasushi Maruta, Takuji Mochizuki (NEC) RCS2017-359 SR2017-125 SRW2017-79 |
To achieve capacity enhancement and low power consumption, Massive MIMO has drawn attention as a key technology. Our res... [more] | RCS2017-359 SR2017-125 SRW2017-79 p.227(RCS), p.67(SR), p.53(SRW) |
| RCS | 2017-06-21 15:45 |
Okinawa | Ishigaki Shoukou Kaikan | Performance Evaluation of Intersite-Coordination Beamforming for 5G Low-SHF-Band Massive MIMO by Outdoor Experimental Results Tatsuki Okuyama, Shohei Yoshioka (NTT DOCOMO), Kenichiro Yamazaki, Daisuke Nose (NEC), Satoshi Suyama, Jun Mashino (NTT DOCOMO), Yasushi Maruta (NEC), Yukihiko Okumura (NTT DOCOMO) RCS2017-56 |
The fifth-generation (5G) mobile communication systems introduces Massive MIMO for super high bit rate and large system ... [more] | RCS2017-56 pp.37-42 |
| RCS, IN, NV (Joint) |
2017-05-11 09:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Study on Enhanced Intersite Coordination using Beam Search for 5G Low-SHF-Band Massive MIMO Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2017-30 |
The fifth-generation (5G) mobile communication system will utilize higher frequency bands with wider bandwidth for super... [more] | RCS2017-30 pp.1-6 |
| RCS | 2017-04-25 14:20 |
Kagawa | Kotohira Onsen Kotosankaku | Performance Evaluation of Digital Beamforming by Indoor and Outdoor Propagation Experimental Results for 5G Massive MIMO in Low SHF Band Tatsuki Okuyama (NTT DOCOMO), Kenichiro Yamazaki, Daisuke Nose (NEC), Satoshi Suyama, Jun Mashino, Shohei Yoshioka (NTT DOCOMO), Yasushi Maruta (NEC), Yukihiko Okumura (NTT DOCOMO) RCS2017-25 |
The fifth-generation (5G) mobile communication systems introduces Massive MIMO for super high bit rate and large system ... [more] | RCS2017-25 pp.131-136 |
| RCS, SR, SRW (Joint) |
2017-03-02 10:25 |
Tokyo | Tokyo Institute of Technology | Effect of Intersite Coordination Control for 5G Low-SHF-Band Massive MIMO with Digital Beamforming Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2016-309 |
(To be available after the conference date) [more] | RCS2016-309 pp.121-126 |
| IT, SIP, RCS | 2017-01-19 10:50 |
Osaka | Osaka City Univ. | Performance Evaluation of 5G Low-SHF-Band Massive MIMO with Digital Beamforming Using Two-Stage Channel Estimation Shohei Yoshioka, Satoshi Suyama, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) IT2016-48 SIP2016-86 RCS2016-238 |
The fifth-generation (5G) mobile communication system will utilize higher frequency bands with wider bandwidth for super... [more] | IT2016-48 SIP2016-86 RCS2016-238 pp.13-18 |
| SAT, RCS (Joint) |
2016-08-19 13:05 |
Miyagi | Tohoku Gakuin University | Throughput Performance on 5G Ultra High-Density Distributed Antenna System using Digital FBCP at Low SHF band Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2016-143 |
In order to tackle rapidly increasing traffic, ultra high-density distributed antenna system has been proposed for the f... [more] | RCS2016-143 pp.77-82 |
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