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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, RCS (Joint) |
2023-11-16 09:30 |
Kumamoto | Kumamoto Prefectural Workers' Welfare Hall (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Relaying achieving high-capacity and low-latency data transmission in millimeter wave bands (*) Masahiro Takigawa, Ryochi Kataoka, Issei Kanno, Yoji Kishi (KDDI Research)  AP2023-140 RCS2023-163 |
This paper introduces our efforts to realize high capacity and low latency data transmission. Millimeter wave bands such... [more] | AP2023-140 RCS2023-163 p.59(AP), p.63(RCS) |
| RCC, ISEC, IT, WBS | 2023-03-15 11:00 |
Yamaguchi | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Virtualized terminal utilizing the terahertz band for high-capacity communications toward Beyond 5G/6G Takahiro Hayashi, Yoshio Kunisawa, Tatsuya Nagao, Kazuki Takezawa, Satoshi Ito, Hiromi Matsuno, Yoji Kishi (KDDI Research, Inc) IT2022-110 ISEC2022-89 WBS2022-107 RCC2022-107 |
In the 2030s, when Beyond 5G/6G is expected to be realized, a cyber-physical system (CPS) that integrates physical and c... [more] | IT2022-110 ISEC2022-89 WBS2022-107 RCC2022-107 pp.263-268 |
| 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] | |
| SAT | 2021-10-07 14:20 |
Online | Online | PROPOSAL FOR A USER-CENTRIC RAN ARCHITECTURE TOWARDS BEYOND 5G Kosuke Yamazaki, Takeo Ohseki, Yoshiaki Amano, Takahide Murakami, Hiroyuki Shinbo, Yoji Kishi (KDDI Research, Inc.) SAT2021-43 |
In this paper, we present a novel RAN architecture for Beyond 5G called “user-centric (UC) RAN architecture,” which prov... [more] | SAT2021-43 pp.4-10 |
| RCS | 2021-06-24 13:10 |
Online | Online | A Study on Gaussian Belief Propagation Detector for High-Dimensional OTFS Modulation Yuya Ito, Shinsuke Ibi (Doshisha Univ.), Takumi Takahashi (Osaka Univ.), Hisato Iwai (Doshisha Univ.), Noboru Osawa, Kosuke Yamazaki, Yoji Kishi (KDDI Research) RCS2021-54 |
This paper proposes a demodulation (detection) scheme via Gaussian belief propagation (GaBP) for orthogonal time frequen... [more] | RCS2021-54 pp.151-156 |
| 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] | |
| RCS, SR, SRW (Joint) |
2020-03-04 09:00 |
Tokyo | Tokyo Institute of Technology (Cancelled but technical report was issued) |
R&D of Technology for High Reliability Management of Advanced 5G Network to Various Requirements of Communication Services Takahide Murakami, Hiroyuki Shinbo, Yu Tsukamoto, Shinobu Nanba, Yoji Kishi (KDDI Research), Morihiko Tamai, Hiroyuki Yokoyama (ATR), Takanori Hara, Koji Ishibashi (The University of Electro-Communications), Kensuke Tsuda, Yoshimi Fujii (Kozo Keikaku Engineering Inc.), Fumiyuki Adachi, Keisuke Kasai, Masataka Nakazawa (Tohoku Univ.), Yuta Seki, Takayuki Sotoyama (Panasonic) RCS2019-320 |
As the 5th generation mobile communication system is widespread approximately 2025, more variety of communication qualit... [more] | RCS2019-320 pp.1-6 |
| RCS, SR, SRW (Joint) |
2020-03-04 15:00 |
Tokyo | Tokyo Institute of Technology (Cancelled but technical report was issued) |
[Invited Talk]
A Proposal of Dynamic Spectrum Sharing Architecture between different radio services and 5G system Kosuke Yamazaki, Takahiro Hayashii, Yoshiaki Amano, Yoji Kishi (KDDI Research), Takeo Fujii, Koichi Adachi (UEC), Hiroshi Harada, Kei-ichi Mizutani (Kyoto Univ.), Jun-ichi Takada, Kentaro Saito (TIoT), Yasushi Fuwa, Osamu Takyu (Shinshu Univ.), Ryo Sawai, Ryota Kimura (SONY), Satoshi Baba, Hironori Kakefuda (NDK), Hideki Kanemoto, Takeshi Yasunaga (Panasonic) RCS2019-345 SR2019-120 SRW2019-66 |
To achieve highly efficient spectrum usage, we propose a novel spectrum management scheme to realize Dynamic Spectrum Sh... [more] | RCS2019-345 SR2019-120 SRW2019-66 pp.137-142(RCS), pp.41-46(SR), pp.35-40(SRW) |
| 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] | |
| AP | 2018-02-16 16:20 |
Tokyo | Kozo Keikaku Engineering, Inc. | [Invited Lecture]
Efforts of Antennas and Propagation in au×HAKUTO MOON CHALLENGE Project Masayuki Nakano, Hiroaki Honma, Yoji Kishi (KDDI Research), Toshiki Tanaka, Toshiro Shimizu (ispace technologies) AP2017-190 |
[more] | AP2017-190 pp.77-80 |
| RCS, SR, SRW (Joint) |
2017-03-02 15:45 |
Tokyo | Tokyo Institute of Technology | [Invited Talk]
Efficiency Improvement in Communication Systems by Using Device-to-Device Communication Technologies Koichiro Kitagawa, Yasuhiro Suegara, Yoji Kishi (KDDI Reserch) RCS2016-319 SR2016-101 SRW2016-94 |
In the 5th generation (5G) systems, which are expected to be commercialized after around 2020, new performance criteria ... [more] | RCS2016-319 SR2016-101 SRW2016-94 p.171(RCS), p.51(SR), p.145(SRW) |
| OPE, OME | 2015-11-27 09:15 |
Kagawa | Sunport-hall Takamatsu | [Invited Talk]
Bio-sensing/imaging using GaInAsP semiconductor nanolasers Toshihiko Baba, Shoji Hachuda, Takumi Watanabe, Daichi Takahashi, Yuki Furuta, Keisuke Watanabe, Hiroshi Abe, Yoji Kishi, Mai Sakemoto, Shota Kita (Yokohama Nat'l Univ.) OME2015-70 OPE2015-136 |
GaInAsP photonic crystal nanolaser is used as a bio-sensor because its laser characteristics are sensitive to the enviro... [more] | OME2015-70 OPE2015-136 pp.31-36 |
| SR | 2013-01-24 16:25 |
Nagano | Shinshu Univ. | [Invited Talk]
R&D Project of Multilayered Communications Network
-- For disaster-resilient communications -- Shingo Ohmori (YRP-IAI), Fumiyuki Adachi (Tohoku Univ.), Kazunori Takeuchi (KDDI Lab.), Yoji Kishi (KDDI), Masaharu Hamaguchi (OKI), Ryo Kajiwara (YRP) SR2012-74 |
[more] | SR2012-74 pp.15-16 |
| SR | 2012-07-26 13:00 |
Kagoshima | Yakushima (an island in Kagoshima pref.) | Optimal Picocell Deployment in Heterogeneous Networks with Hotspots Hidekazu Shimodaira, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki (Tokyo Tech), Noriaki Miyazaki, Shoji Kaneko, Satoshi Konishi, Yoji Kishi (KDDI R&D Lab.) SR2012-17 |
[more] | SR2012-17 pp.1-6 |
| NS | 2012-01-27 16:00 |
Okinawa | Ryukyu University | [Encouragement Talk]
Statistical Estimate in Position of Coverage Holes in Minimization of Drive Tests Haruki Izumikawa, Takashi Matsunaka, Yoji Kishi (KDDI Labs.) NS2011-175 |
We have been conducting research into the construction of a coverage map or a map of coverage holes for mobile access sy... [more] | NS2011-175 pp.175-178 |
| AP, RCS (Joint) |
2011-11-16 13:20 |
Aichi | Nagoya Congress Center | Resource allocation model and parameter optimization in Heterogeneous Networks Shinichi Tajima, Gia Khanh Tran, Kei Sakaguchi, Kiyomichi Araki (Titech), Shoji Kaneko, Noriaki Miyazaki, Satoshi Konishi, Yoji Kishi (KDDI Lab.) RCS2011-197 |
Recently, there is demand to constract wireless communication systems which can adapt to tremendous incerase of networ... [more] |
RCS2011-197 pp.49-54 |
| NS | 2011-05-19 10:50 |
Tokyo | Sophia University | Efficient Construction of Coverage Map Avoiding Positional Gaps Haruki Izumikawa, Shinobu Nanba, Yoji Kishi (KDDI Labs.) NS2011-19 |
A coverage map can be constructed by gleaning radio signal quality information, such as RSRP and RSRQ, with location inf... [more] | NS2011-19 pp.19-22 |
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