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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 37  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
CQ
(2nd)
2021-01-21
17:00
Online Online [Special Talk] Motivation for obtaining a degree and research activities so far
Ryochi Kataoka (KDDI Research)
 [more]
NS, RCS
(Joint)
2020-12-18
10:50
Online Online Spatially and Spectrally Distributed Massive MIMO toward Beyond 5G systems
Kentaro Nishimori (KDDI Research/Niigata Univ.), Takahiro Matsuda (KDDI Research/Tokyo Metropolitan Univ.), Ryochi Kataoka, Takeo Ohzeki, Daishi Watanabe, Kosuke Yamazaki (KDDI Research) RCS2020-145
 [more] RCS2020-145
pp.60-65
MIKA
(3rd)
2020-10-09
10:15
Niigata
(Primary: On-site, Secondary: Online)
Evaluation report of Interference Mitigation Method for Dynamic Spectrum Sharing
Ryochi Kataoka, Issei Kanno, Naoto Tsumachi (KDDI Research), Toshinori Suzuki (KDDI Research/Tohoku Gakuin Univ.), Hiroyasu Ishikawa (KDDI Research/Nihon Univ.), Kosuke Yamazaki, Yoji Kishi (KDDI Research)
Mobile communication traffic is increasing yearly due to the spread of mobile broadband services, and the demand will fu... [more]
RISING
(2nd)
2019-11-27
13:55
Tokyo Fukutake Learning Theater, Hongo Campus, Univ. Tokyo [Poster Presentation] [MIKA/RISING Collaboration]The study of interference mitigation method for dynamic spectrum sharing
Ryochi Kataoka, Issei Kanno (KDDI Research), Toshinori Suzuki (KDDI Research/Tohoku Gakuin Univ.), Hiroyasu Ishikawa (KDDI Research/Nihon Univ.), Kosuke Yamazaki, Yoji Kishi (KDDI Research)
 [more]
RCS 2019-10-24
16:15
Kanagawa Yokosuka Research Park [Invited Lecture] The study of interference mitigation method for dynamic spectrum sharing between different systems
Ryochi Kataoka, Issei Kanno (KDDI Research), Toshinori Suzuki (KDDI Research/Tohoku Gakuin Univ.), Hiroyasu Ishikawa (KDDI Research/Nihon Univ.), Kosuke Yamazaki, Yoji Kishi (KDDI Research) RCS2019-190
 [more] RCS2019-190
p.69
MIKA
(2nd)
2019-10-04
10:15
Hokkaido Hokkaido Univ. [Poster Presentation] The study of interference mitigation method for dynamic spectrum sharing
Ryochi Kataoka, Issei Kanno (KDDI Research), Toshinori Suzuki (KDDI Research/Tohoku Gakuin Univ.), Hiroyasu Ishikawa (KDDI Research/Nihon Univ.), Kosuke Yamazaki, Yoji Kishi (KDDI Research)
 [more]
SR 2018-05-24
11:30
Tokyo Tokyo big sight A Study on Reduction Method on Radio Resource Control Signal Amount of D2D Relay Communication
Ryochi Kataoka, Koichiro Kitagawa, Bingxuan Zhao, Katsuo Yunoki, Hiroyuki Shinbo, Akira Yamaguchi, Kazunori Takeuchi (KDDI Research) SR2018-2
In 5G systems, the utilization of high frequency band that can use a wide bandwidth is expected. Generally, there is a p... [more] SR2018-2
pp.7-12
RCS 2018-04-23
13:35
Yamaguchi Hotel New Tanaka, Yuda Onsen Evaluation of Decreasing Signaling Messages of D2D Communication in 5G Systems at Moving Environments
Bingxuan Zhao, Koichiro Kitagawa, Takashi Fujimoto, Ryochi Kataoka, Katsuo Yunoki, Hiroyuki Shinbo (KDDI Research) RCS2018-8
The fifth Generation (5G) system utilizing millimeter wave (mmW) bands suffers from the problem of uncovered areas due t... [more] RCS2018-8
pp.43-48
RCS, SR, SRW
(Joint)
2018-02-28
15:15
Kanagawa YRP A Performance Evaluation of D2D Relay Communication in 5G systems
Koichiro Kitagawa, Takashi Fujimoto, Bingxuan Zhao, Ryochi Kataoka, Katsuo Yunoki, Hiroyuki Shinbo (KDDI Research) SR2017-114
In 5G systems, resource utilization in small cells with higher frequency band can be improved by using device-to-device ... [more] SR2017-114
pp.17-23
SR, SRW
(Joint)
2017-10-23
14:00
Overseas Grand Hotel Palatino, Rome, Italy [Poster Presentation] Architecture Study on 5G Networks with Edge Computing and D2D for Improving Communication Quality
Katsuo Yunoki, Koichiro Kitagawa, Takashi Fujimoto, Bingxuan Zhao, Ryochi Kataoka, Hiroyuki Shinbo (KDDI Research) SR2017-79 SRW2017-31
Authors are investigating to improve communication performance by utilizing "Edge computing" and "Device-to-device (D2D)... [more] SR2017-79 SRW2017-31
p.37(SR), p.41(SRW)
RCS, AP
(Joint)
2016-11-25
13:50
Kyoto Kyoto International Community House Evaluation of transmission rate on massive MIMO in an outdoor environment
Kentaro Nishimori, Ryochi Kataoka (Niigata Univ.), Ngochao Tran, Tetsuro Imai (Docomo) AP2016-120
 [more] AP2016-120
pp.77-82
CQ 2016-05-25
13:50
Fukuoka Kyushu University Performance evaluation of massive MIMO in an actual outdoor environment
Kentaro Nishimori, Ryochi Kataoka (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTT Docomo) CQ2016-26
 [more] CQ2016-26
pp.81-86
AP 2016-03-11
09:50
Yamanashi Isawa Onsen (Kanpo no Yado) Interference to Noise power Ratio metric property for Collision Detection in MU-MIMO transmission
Kazuma Ando, Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Takefumi Hiraguri (NIT), Hideo Makino (Niigata Univ.) AP2015-217
 [more] AP2015-217
pp.75-80
CQ
(2nd)
2015-10-30
13:20
Osaka   [Poster Presentation] Performance evaluation of Collision Detection for MU-MIMO transmission
Kazuma Ando, Kentro Nishimori, Ryochi Kataoka (Niigata Univ.), Takefumi Hiraguri (NIT)
We have proposed an interference detection method in MIMO transmission. This report proposes a collision detection metho... [more]
CQ 2015-09-01
13:20
Kyoto Kyoto Institute of Technology Relationship between the interference reduction characteristics and amount of signal processing by cylindrical array based massive MIMO in a real microcell environment
Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) CQ2015-49
 [more] CQ2015-49
pp.55-60
CQ 2015-09-01
15:10
Kyoto Kyoto Institute of Technology Application on multi-user system by MIMO based collision detection
Ryochi Kataoka (Niigata Univ.), Yoshiaki Morino (NIT), Kentaro Nishimori (Niigata Univ.), Takefumi Hiraguri (NIT) CQ2015-54
 [more] CQ2015-54
pp.83-88
RCS, SR, SRW
(Joint)
2015-03-04
16:50
Tokyo Tokyo Institute of Technology Interference reduction characteristics by cylindrical array based massive MIMO with analog-digital hybrid processing in a real microcell environment
Ryochi Kataoka, Junpei Miyazawa, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) RCS2014-323
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] RCS2014-323
pp.129-134
AP 2015-02-19
10:55
Hyogo Chusho-kigyou center at Amagasaki-City Interference reduction characteristics by circular array based massive MIMO in a real microcell environment
Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) AP2014-189
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] AP2014-189
pp.15-20
AP 2015-01-22
14:35
Ehime Ehime University Basic study on arrangement of array antenna for massive MIMO
Satoshi Sasaki, Kentaro Nishimori, Chihiro Sakazume, Ryochi Kataoka, Hideo Makino (Niigata Univ.) AP2014-170
 [more] AP2014-170
pp.51-56
AP 2015-01-23
10:45
Ehime Ehime University Performance evaluation of Massive MIMO with analog-digital hybrid processing in a circular cell environment
Junpei Miyazawa, Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) AP2014-176
Massive MIMO enables the improvement on the transmission rate without increasing the burden on
the signal processing by... [more]
AP2014-176
pp.85-90
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