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All Technical Committee Conferences  (Searched in: All Years)

Search Results: Conference Papers
 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 31  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
NS, RCS
(Joint)
2023-12-14
10:35
Fukuoka Kyushu Institute of Technology Tobata campus, and Online
(Primary: On-site, Secondary: Online)
[Invited Lecture] Study of Transmit Timing Adjustment Function for Application of A-RoF System to TDD System
Yuta Takahashi, Yasuyoshi Yamamoto, Mizuki Suga, Hideki Toshinaga, Naoki Kita (NTT) NS2023-127 RCS2023-180
High-Speed and broadband network transformation is needed for 6G (sixth-generation wireless technology) era, it is neces... [more] NS2023-127 RCS2023-180
pp.21-25
AP, RCS
(Joint)
2023-11-15
13:00
Kumamoto Kumamoto Prefectural Workers' Welfare Hall
(Primary: On-site, Secondary: Online)
2D Pre-beamforming Control Method for Improving Performance of Fixed Wavelength Allocation Beamforming with Massive Planar Array Antenna
Mizuki Suga, Yuta Takahashi, Yasuyoshi Yamamoto, Hideki Toshinaga, Naoki Kita (NTT) RCS2023-155
Radio over fiber (RoF) is attracting much attention as one way to realize high frequency bands systems. A fixed waveleng... [more] RCS2023-155
pp.18-23
EMCJ 2023-06-09
13:30
Hokkaido Otaru Chamber of Commerce & Industry
(Primary: On-site, Secondary: Online)
Circuit-theoretic calculation of scattering properties considering inter-element coupling in a two-dimensional Van Atta array
Daisuke Nishida, Atsuhiro Nishikata (Tokyo Tech), Yasuyoshi Yamamoto, Yuta Takahashi, Naoki Kita (NTT) EMCJ2023-21
 [more] EMCJ2023-21
pp.48-53
EMCJ, MICT
(Joint)
2023-03-17
14:50
Tokyo Kikai-Shinko-Kaikan Bldg
(Primary: On-site, Secondary: Online)
Proposal and prototype of a varactor-loaded continuous variable phase shifter for noise reduction during phase switching
Kazuaki Maruyama, Atsuhiro Nishikata (Titech), Yushi Shirato, Yasuyoshi Yamamoto, Yuta Takahashi, Naoki Kita (NTT) EMCJ2022-92
 [more] EMCJ2022-92
pp.1-6
AP 2023-03-17
14:10
Toyama Toyama Prefectural Civic Hall
(Primary: On-site, Secondary: Online)
Experimental Evaluation of Staircase Array Antenna employing Butler Matrix
Hideya So, Takana Kaho (SIT), Yasuyoshi Yamamoto, Mizuki Suga, Yuta Takahashi, Yushi Shirato, Naoki Kita (NTT) AP2022-249
The authors have proposed a staircase array antenna consisting of a one-dimensional butler matrix and patch array antenn... [more] AP2022-249
pp.87-92
MWP 2021-11-26
13:50
Online Online [Invited Talk] R&D for Higher Frequency Bands Radio-over-Fiber Systems
Yushi Shirato, Kota Ito, Mizuki Suga, Takuto Arai, Yuta Takahashi, Yasuyoshi Yamamoto, Naoki Kita (NTT) MWP2021-31
In order to enhance the transmission capacity, it is effective to use higher frequency band radio waves with abundant fr... [more] MWP2021-31
pp.6-11
AP 2021-10-07
14:25
Online Online [Poster Presentation] Experimental Evaluation of Load-modulating Channel Estimation Method for Tunable Reflectarray
Shun Sasaki, Kentaro Murata, Naoki Honma (Iwate Univ.), Yuta Takahashi, Yuji Aburakawa, Yoshifumi Morihiro (NTT DOCOMO) AP2021-82
 [more] AP2021-82
pp.56-58
NC, MBE
(Joint)
2020-03-04
10:20
Tokyo University of Electro Communications
(Cancelled but technical report was issued)
The relationship between psychiatric diseases and less exploratory behaviors
Shuhei Hara (Waseda Univ), Kenji Doya (OIST), Takayuki Koga, Yuta Takahashi, Rieko Osu (Waseda Univ) NC2019-77
Less exploratory behaviors are seen in many psychiatric diseases. In our research, healthy subjects completed a behavior... [more] NC2019-77
pp.9-14
NC, MBE 2019-12-06
11:00
Aichi Toyohashi Tech Prediction of EEG Time Series with Reservoir Computing
Takayuki Koga, Yuta Takahashi, Rieko Osu (Waseda Univ) MBE2019-48 NC2019-39
We applied Reservoir Computing (RC) to predict and generate EEG time-series. In the prediction, 10sec EEG was used for t... [more] MBE2019-48 NC2019-39
pp.19-24
RCS 2019-10-25
10:20
Kanagawa Yokosuka Research Park 28-GHz Band 5G Downlink Throughput Enhancement Using Reflectarray with Variable Phase Shifter
Yuta Takahashi (NTT Docomo Inc.), Yuta Takahashi (Iwate Univ.), Junichi Abe, Kazushi Muraoka, Satoshi Suyama, Yuji Aburakawa (NTT Docomo Inc.) RCS2019-194
SHF band (3 to 30 GHz) radio waves, used for fifth-generation (5G) mobile communication systems, has an issue to establi... [more] RCS2019-194
pp.89-94
RCS 2019-04-18
11:20
Hokkaido Noboribetsu Grand Hotel 28 GHz-Band Experimental Trial of Downlink Massive MIMO in Urban Railway Environment
Kazushi Muraoka, Nobuhide Nonaka, Yuta Takahashi, Tatsuki Okuyama, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2019-5
Field trials of the fifth-generation (5G) mobile communication system using 28 GHz band at which 400 MHz band will be av... [more] RCS2019-5
pp.23-28
RCS, SR, SRW
(Joint)
2019-03-07
12:25
Kanagawa YRP [Technology Exhibit] DOCOMO's Activities in 5G System Trial in Fiscal Year 2018
Nobuhide Nonaka, Tatsuki Okuyama, Yuta Takahashi, Kazushi Muraoka, Noriaki Minamida, Jun Mashino, Satoshi Suyama, Yukihiko Okumura (NTT DOCOMO) RCS2018-308 SR2018-129 SRW2018-59
Standardization, research, and development activities are conducted for the fifth-generation (5G) mobile communication s... [more] RCS2018-308 SR2018-129 SRW2018-59
p.145(RCS), p.57(SR), p.25(SRW)
NC, MBE
(Joint)
2019-03-05
17:05
Tokyo University of Electro Communications Detecting the Number of Compartments Using Convolutional Neural Network
Takayuki Koga, Yuta Takahashi, Shuntaro Okazaki, Rieko Osu (Waseda Univ.) NC2018-74
n this study, we examined the compartment counting ability of Convolutional Neural Network (CNN) using images that are c... [more] NC2018-74
pp.163-168
WIT, ASJ-H 2019-02-08
10:30
Ehime Ehime Univ. Study on sign language recognition using machine learning
Yuta Takahashi, Tsutomu Kimura (NITTC), Kazuyuki Kanda (Minpaku) WIT2018-60
Our purpose is to recognize kinetic movements in sign language through machine learning which consists of a recurrent ne... [more] WIT2018-60
pp.59-64
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)
2018-03-01
10:30
Kanagawa YRP Field Experimental Evaluation of MIMO Transmission Performance in Quad-directional UE Antenna Configuration for 5G Radio Access System
Yuta Takahashi, Yuki Inoue, Shohei Yoshioka, Yoshihisa Kishiyama, Satoshi Suyama, Jun Mashino, Yukihiko Okumura (NTT DOCOMO, INC.) RCS2017-350
This paper presents field experiments on the downlink performance of a 5G radio access system employing higher rank MIMO... [more] RCS2017-350
pp.191-196
HPB
(2nd)
2018-02-21
16:15
Tokyo   Analysis of Tourist's Unconscious Gesture Toward Inner State Estimation During Sightseeing
Yuta Takahashi (NAIST), Yuki Matsuda (NAIST/JSPS research fellow DC1), Dmitrii Fedotov (UULM), Yutaka Arakawa (NAIST/JST PRESTO), Wolfgang Minker (UULM), Keiichi Yasumoto (NAIST)
As the demand for "smart tourism" increases, various tourism information becomes available, but the existing tourist inf... [more]
CQ
(2nd)
2018-01-20
12:50
Tokyo Nishiwaseda Campus, Waseda Univ. [Poster Presentation] Transient characteristics and stabilization of reservation control scheme for disaster congestion
Yuki Arai, Yuta Takahashi, Takefumi Hiraguri, Hideaki Yoshino (NIT)
When a disaster such as an earthquake occurs, telephone traffic to the disaster area increases rapidly for mainly safety... [more]
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