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Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 42  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, NS
(Joint)
2022-12-16
15:50
Aichi Nagoya Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
[Invited Lecture] Standardization of NR network-controlled repeater in 3GPP and research on coverage expansion techniques in millimeter-wave bands
Takeo Ohseki, Ryochi Kataoka, Masahiro Takigawa, Taishi Watanabe, Yoshiaki Amano (KDDI Research)
(To be available after the conference date) [more]
RCS, AP, UWT
(Joint)
2022-11-17
10:20
Fukuoka Kyushu University, and Online
(Primary: On-site, Secondary: Online)
A study on relaying achieving low latency and high capacity in the millimeter wave bands
Masahiro Takigawa, Ryochi Kataoka, Takeo Ohseki, Taishi Watanabe, Yoshiaki Amano (KDDI Research, Inc.) RCS2022-176
This paper evaluates the link-level throughput characteristics when Line-of-Sight MIMO(LoS-MIMO) is applied between a re... [more] RCS2022-176
pp.124-129
MIKA
(3rd)
2022-10-13
11:10
Niigata Niigata Citizens Plaza
(Primary: On-site, Secondary: Online)
[Poster Presentation] Basic Performance Evaluation of Low Latency and High Capacity Relay Technology in the Millimeter Wave Band
Ryochi Kataoka, Masahiro Takigawa, Takeo Ohseki, Taishi Watanabe, Yoshiaki Amano (KDDI Research)
 [more]
RCS, SR, SRW
(Joint)
2022-03-04
15:20
Online Online Evaluation of the optimal position of relay station equipped with frequency converter in high frequency band
Masahiro Takigawa, Ryochi Kataoka, Takeo Ohseki, Taishi Watanabe, Kosuke Yamazaki, Yoji Kishi (KDDI Research) RCS2021-291
In order to realize the integration of physical and cyber space (CPS: Cyber-Physical System), real-time, high-speed and ... [more] RCS2021-291
pp.195-200
MIKA
(3rd)
2021-10-29
10:30
Okinawa
(Primary: On-site, Secondary: Online)
[Poster Presentation] The Basic Study of Low Latency Relaying Method for Uplink in the High Frequency Band
Ryochi Kataoka, Takeo Ohseki, Taishi Watanabe, Kosuke Yamazaki, Yoji Kishi (KDDI Research)
 [more]
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
 Results 1 - 20 of 42  /  [Next]  
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