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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) |
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, 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 |
| RCS, SR, SRW (Joint) |
2019-03-08 16:55 |
Kanagawa | YRP | Indoor Experimental Trial on SU-MIMO Transmission for High SHF Wide-band Massive MIMO in 5G nobuhide nonaka, kazushi muraoka, satoshi suyama, jun mashino (DOCOMO), kenji nakagawa, kenichiro kamohara, manabu sakai, yoshitaka murata, hiroki iura (Mitsubishi), yukihiko okumura (DOCOMO) RCS2018-333 |
The fifth-generation (5G) mobile communication system will introduce Massive MIMO technology at higher frequency bands w... [more] | RCS2018-333 pp.267-271 |
| RCS, AP (Joint) |
2018-11-22 15:30 |
Okinawa | Okinawa Industry Support Center | Low Complexity User Selection Algorithm for High SHF Band Multi-User Massive MIMO Using Hybrid Beamforming Nobuhide Nonaka, Kazushi Muraoka, Satosi Suyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO) RCS2018-214 |
The 5th Generation (5G) radio access network will introduce Massive MIMO technology at higher frequency bands with wider... [more] | RCS2018-214 pp.205-210 |
| 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 |
| SR, RCS (Joint) (2nd) |
2018-10-31 08:30 |
Overseas | Mandarin Hotel, Bangkok, Thailand | [Invited Talk] R&D Activities for 5G in IEICE Technical Committee on Radio Communication Systems in FY2017
-- Multi-Antenna Technologies and Advanced Modulation/Multiple Access Schemes -- Eisuke Fukuda (Fujitsu Labs.), Hidekazu Murata (Kyoto Univ.), Tomoaki Ohtsuki, Yukitoshi Sanada (Keio Univ.), Satoshi Suyama (NTT DOCOMO), Fumiaki Maehara (Waseda Univ.), Tomoya Tandai (Toshiba), Toshihiko Nishimura (Hokkaido Univ.), Tetsuya Yamamoto (Panasonic), Koichi Ishihara (NTT), Kazushi Muraoka (NTT DOCOMO), Shinsuke Ibi (Osaka Univ.), Hiroshi Nishimoto (Mitsubishi Electric) |
[more] | |
| RCS | 2018-10-18 14:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Invited Lecture]
DOCOMO's 5G Trial for 5G Enhancement Satoshi Suyama, Jun Mashino, Kazushi Muraoka, Yoshihisa Kishiyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-160 |
In order to cope with recent growth of mobile data traffic and emerging of various services, world-wide system trials fo... [more] | RCS2018-160 pp.57-59 |
| 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 |
| IN, NS, CS, NV (Joint) |
2018-09-06 10:45 |
Miyagi | Research Institute of Electrical Communication, Tohoku Univ. | [Special Invited Talk]
DOCOMO's 5G Trial for 5G Realization Satoshi Suyama, Jun Mashino, Kazushi Muraoka, Yoshihisa Kishiyama, Yukihiko Okumura (NTT DOCOMO) NS2018-88 IN2018-22 CS2018-41 |
[more] | NS2018-88 IN2018-22 CS2018-41 pp.3-5 |
| SAT, RCS (Joint) |
2018-08-09 11:20 |
Iwate | Iwate University | Field Trial of 28 GHz Band Downlink Massive MIMO in Railway Environment Yuta Takahashi, Hiroyuki Miyazaki, Tatsuki Okuyama, Kazushi Muraoka, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-133 |
Field trials of the fifth-generation (5G) mobile communication system using 28 GHz band at which almost 1-GHz band will ... [more] | RCS2018-133 pp.13-18 |
| ASN, NS, RCS, SR, RCC (Joint) |
2018-07-12 14:05 |
Hokkaido | Hakodate Arena | Outdoor Trial of Beamforming in Ultra-Highly Mobile Environment
-- Downlink Massive MIMO Performance at 28GHz -- Kazushi Muraoka, Yuta Takahashi, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-111 |
Field trials of the fifth-generation (5G) mobile communication system using 28GHz band at which almost 1-GHz band will b... [more] | RCS2018-111 pp.149-154 |
| ASN, NS, RCS, SR, RCC (Joint) |
2018-07-12 14:30 |
Hokkaido | Hakodate Arena | Outdoor Trial of Beamforming in Ultra-Highly Mobile Environment
-- Uplink Massive MIMO and Handover Performances at 28GHz -- Yuta Takahashi, Kazushi Muraoka, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-112 |
Field trials of the fifth-generation (5G) mobile communication system using 28 GHz band at which almost 1-GHz band will ... [more] | RCS2018-112 pp.155-160 |
| RCS, SR, SRW (Joint) |
2018-03-02 16:35 |
Kanagawa | YRP | Uplink Transmission Performance Applying Beam Space Channel Estimation to Massive MIMO Systems Kazushi Muraoka, Jun Shikida, Naoto Ishii (NEC) RCS2017-391 |
The 5th generation (5G) mobile communication systems are expected to be applied in new fields like security, telemedicin... [more] | RCS2017-391 pp.399-404 |
| RCS, SR, SRW (Joint) |
2018-03-02 16:55 |
Kanagawa | YRP | Beam Space Channel Estimation Using Multiple DFT Matrices for Massive MIMO Systems Jun Shikida, Kazushi Muraoka, Naoto Ishii (NEC) RCS2017-392 |
Massive MIMO is a promising technology for the 5th generation (5G) mobile communication systems. When uplink (UL) channe... [more] | RCS2017-392 pp.405-410 |
| RCS, AP (Joint) |
2016-11-24 11:10 |
Kyoto | Kyoto International Community House | Device-to-Device Relay Selection based on Effective Path Throughput to Fill Coverage Holes in Public Safety LTE Taichi Ohtsuji, Kazushi Muraoka, Hiroaki Aminaka, Dai Kanetomo, Yasuhiko Matsunaga (NEC) RCS2016-193 |
There is a desire for public safety networks to meet the increasing demands for sharing images or videos among first res... [more] | RCS2016-193 pp.11-16 |
| RCS, IT, SIP | 2016-01-18 13:15 |
Osaka | Kwansei Gakuin Univ. Osaka Umeda Campus | Radio Resource Allocation for Device-to-Device Communication with Resource Sharing in Public Safety LTE Kazushi Muraoka, Taichi Ohtsuji, Hiroaki Aminaka, Gen Motoyoshi, Yasuhiko Matsunaga (NEC) IT2015-71 SIP2015-85 RCS2015-303 |
Public safety networks are desired to meet increasing needs for sharing images or videos among dispatchers and fast resp... [more] | IT2015-71 SIP2015-85 RCS2015-303 pp.137-142 |
| RCS | 2015-06-25 14:55 |
Hokkaido | Hokkaido Univ. | Evaluation of Interference Characteristic of Device-to-Device Communication in Public Safety LTE Kazushi Muraoka, Jun Shikida, Hiroto Sugahara (NEC) RCS2015-75 |
Public safety networks are desired to meet increasing needs for sharing images or videos among incident commanders and f... [more] | RCS2015-75 pp.173-178 |
| RCS | 2013-06-20 16:00 |
Hokkaido | Hokkaido Univ. | Spatial Removal Processes to Improve EM-based Iterative Reception for MIMO-OFDM Mobile Communications Kazushi Muraoka, Kazuhiko Fukawa, Hiroshi Suzuki, Satoshi Suyama (Tokyo Tech.) RCS2013-54 |
Joint signal detection and channel estimation based on the expectation-maximization (EM) algorithm has been investigated... [more] | RCS2013-54 pp.103-108 |
| AP, RCS (Joint) |
2011-11-18 15:15 |
Aichi | Nagoya Congress Center | Iterative MAP Reception Scheme Employing Channel Estimation Based on Factor Graph for OFDM Mobile Communications Kazushi Muraoka, Kazuhiko Fukawa, Hiroshi Suzuki, Satoshi Suyama (Tokyo Inst. of Tech.) RCS2011-230 |
To maintain good transmission performance of orthogonal frequency division multiplexing (OFDM) mobile communications ove... [more] | RCS2011-230 pp.245-250 |
| AN, USN, SR, RCS (Joint) |
2010-10-29 11:00 |
Osaka | Osaka University | Site Specific Interference Estimation for Advanced Spectrum Management in Cognitive Radio Systems over White Space Spectrum Toshifumi Nakamura, Hiroto Sugahara, Kazushi Muraoka, Masayuki Ariyoshi (NEC) SR2010-65 |
Spectrum management is one of essential functions for cognitive radio systems operating in white space spectrum bands in... [more] | SR2010-65 pp.177-184 |
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