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 Results 1 - 20 of 62  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS 2020-06-24
15:20
Online Online Interleaver-Linked Receiver Beamforming for IDMA-Based Random Access in TDD System
Yotaro Murakami (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-28
This paper proposes a novel interleaver-linked receiver beamforming in time division duplex (TDD)-interleave division mu... [more] RCS2020-28
pp.31-36
RCS 2020-06-24
15:45
Online Online Interleaver-Linked Receiver Beamforming with Transmitter Channel Equalization in TDD-IDMA-Based Random Access
Yuto Muroki (Tokyo Univ. of Science), Yoshihisa KIshiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2020-29
This paper proposes a transmission/reception protocol that combines our previously reported interleaver-linked receiver ... [more] RCS2020-29
pp.37-42
CQ, CBE
(Joint)
2020-01-17
14:50
Tokyo NHK Science & Technology Research Laboratories [Invited Talk] Development of a Mobile Wireless Link System for 4K/8K UHDTV Program Contribution
Naohiko Iai (NHK) CQ2019-133
The authors are conducting research on a next generation mobile Field Pick-up Unit (FPU) system that enables wirelessly ... [more] CQ2019-133
pp.147-152
MIKA
(2nd)
2019-10-04
10:15
Hokkaido Hokkaido Univ. [Poster Presentation] Evaluation of Next Generation Mobile Relay FPU in Case of Increasing Number of SVD-MIMO Modulation Bits
Fumiki Uzawa, Fumito Ito, Takayuki Nakagawa, Naohiko Iai (NHK)
The authors have been conducting research and development in order to realize the wireless transmission of 4K/8K ultra-h... [more]
LQE, OPE, CPM, EMD, R 2019-08-22
16:00
Miyagi   [Invited Talk] Reconsideration of TDDB Statistics of Thick Dielectric Films Used in SiC/GaN Power/RF Devices and Image Sensors
Kenji Okada (TowerJazz Panasonic Semiconductor) R2019-25 EMD2019-23 CPM2019-24 OPE2019-52 LQE2019-30
Recent advances of GaN/SiC power devices, RF/MMIC (monolithic microwave integrated circuit) devices, and also Image Sens... [more] R2019-25 EMD2019-23 CPM2019-24 OPE2019-52 LQE2019-30
pp.29-34
RCS 2018-04-23
09:30
Yamaguchi Hotel New Tanaka, Yuda Onsen Study of Spectrum Sensing to Avoid Interference for Mobile Transmission FPU System
Hiroaki Sudo, Kazuhiro Kosaka, Hideki Kanemoto, Noriyuki Gejoh, Takeshi Yasunaga, Mitsuru Uesugi (Panasonic) RCS2018-1
Time Division Duplex (TDD)-based bidirectional digital field pick-up unit (FPU) system is now being studied. This new di... [more] RCS2018-1
pp.1-6
CS, CAS 2018-03-13
11:35
Fukuoka Nishijin Plaza, Kyushu University A Study on Two-Dimensional Pilot Allocation over Frequency and Delay-time Domain for Uplink Channel Estimation in Massive MIMO/TDD Systems, Part II
Koki Matsuzaki, Osamu Muta (Kyushu Univ.), Haris Gacanin (Nokia Belgium) CAS2017-151 CS2017-105
Multiple-input multiple-output (MIMO) system with a large number of antennas (i.e., massive MIMO) at the base station (B... [more] CAS2017-151 CS2017-105
pp.101-105
AP, RCS
(Joint)
2017-11-09
10:25
Fukuoka Fukuoka University [Invited Lecture] Development of adaptively transmission-controlled 4x4 TDD-SVD-MIMO system for mobile transmission of Super Hi-Vision video material
Kazuhiko Mitsuyama, Fumiki Uzawa, Fumito Ito, Naohiko Iai (NHK) AP2017-119 RCS2017-227
We are conducting research on the next-generation 1.2-GHz/2.3-GHz-band mobile field pick-up unit(FPU) system that can wi... [more] AP2017-119 RCS2017-227
pp.59-64(AP), pp.129-134(RCS)
RCS 2017-10-19
10:50
Miyagi Tohoku Institute of Technology A Study on Adaptive Channel Estimation for Distributed MIMO Cooperative Transmissions
Fumiyuki Adachi, Amnart Boonkajay (Tohoku Univ.) RCS2017-173
In distributed MIMO cooperative transmission using time division duplex (TDD), base station (BS) selects at most 4 distr... [more] RCS2017-173
pp.31-36
CS 2017-07-27
09:54
Nagasaki Fukue Bunka Kaikan A Study on Uplink Channel Estimation Based on Two-Dimensional Pilot Allocation over Frequency and Delay-time Domain for Massive MIMO Systems
Koki Matsuzaki, Osamu Muta (Kyushu Univ.), Haris Gacanin (Nokia Belgium) CS2017-20
Multiple-input multiple-output (MIMO) system with a large number of antennas (i.e., massive MIMO) at the base station (B... [more] CS2017-20
pp.37-38
IT, SIP, RCS 2017-01-19
11:40
Osaka Osaka City Univ. Investigation on the Performance of TDD Massive MIMO in the 4.5GHz Band
Yuya Saito, Anass Benjebbour, Yoshihisa Kishiyama (NTT DOCOMO), Xin Wang, Xiaolin Hou, Huiling Jiang (DOCOMO Beijing Labs), Lei Lu, Bojie Li, Wenliang Liang, Liang Gu (Huawei Technologies), Yang Cui, Tsuyoshi Kashima (Huawei Technologies Japan) IT2016-50 SIP2016-88 RCS2016-240
In this paper, we demonstrate the field experimental trial of TDD Massive MIMO in the 4.5GHz Band. In TDD system, channe... [more] IT2016-50 SIP2016-88 RCS2016-240
pp.25-30
IT, SIP, RCS 2017-01-19
14:55
Osaka Osaka City Univ. A Study on Channel Estimation for Time-Division Duplex Distributed Antenna Cooperative Transmission
Fumiyuki Adachi, Amnart Boonkajay, Tomoyuki Saito, Yuta Seki (Tohoku Univ.) IT2016-73 SIP2016-111 RCS2016-263
We have been studying a distributed antenna cooperative transmission as a promising technique for realizing the 5th gene... [more] IT2016-73 SIP2016-111 RCS2016-263
pp.159-164
RCS 2016-06-23
14:25
Okinawa Univ. of the Ryukyus Indoor Experiment on 5G Radio Access Using Beam Tracking at 15 GHz Band
Kiichi Tateishi, Daisuke Kurita, Atsushi Harada, Yoshihisa Kishiyama (NTT DOCOMO) RCS2016-69
In order to rapidly increasing traffic, 5G radio access network in mobile communications introduces higher frequency ban... [more] RCS2016-69
pp.135-140
CS, OCS
(Joint)
2016-01-21
09:10
Kagoshima Kagoshima University, Korimoto Campus, Inamori Auditorium Improvement of the time synchronization precision by the network-assisted GPS time synchronization systems
Keisuke Nishi, Shigeo Otsu, Seiji Yoshida, Takashi Hirose (NTT) CS2015-73
When navigation satellite systems such as GPS are employed for time synchronization, degradation of synchronization accu... [more] CS2015-73
pp.1-6
SANE 2015-07-24
13:50
Tokyo Electric Navigation Research Institute Proposal of Estimation Method of Satellite Signal Reception Characteristics for efficient GPS Antenna setting
Keisuke Nishi, Seiji Yoshida, Takashi Hirose (NTT) SANE2015-27
As base stations for mobile communication systems based on TDD (Time Division Duplex), such as TD-LTE, require highly pr... [more] SANE2015-27
pp.23-28
CQ, CS
(Joint)
2015-04-22
10:45
Fukuoka Fukuoka Institute of Technology Design and Evaluation of HARQ Scheme for Bidirectional Digital FPU System
Fumiki Uzawa, Tomofumi Koyama, Takashi Kumagai, Kazuhiko Mitsuyama, Naohiko Iai, Katsunori Aoki (NHK) CQ2015-9
File-based video system has become widespread in the television broadcasting field. The authors are developing a bidirec... [more] CQ2015-9
pp.45-49
RCS 2015-04-17
14:00
Oita Yufuin, Yufugoukan Downlink Transmission Performance of 5G Radio Access Using 15 GHz band in Indoor Small Cell Environment
Kiichi Tateishi, Daisuke Kurita, Atsushi Harada, Yoshihisa Kishiyama, Yukihiko Okumura (NTT DOCOMO) RCS2015-19
This paper presents the field experimental results on the propagation characteristic and downlink performance with wideb... [more] RCS2015-19
pp.101-106
AP, RCS
(Joint)
2014-11-13
09:50
Yamagata Yamagata University, Yonezawa Campus White-space LTE System in UK Digital Terrestrial TV Band (2) -- Specification and Evaluation of White-space Devices for Interference Avoidance --
Takeshi Matsumura, Kazuo Ibuka, Kentaro Ishizu, Homare Murakami, Fumihide Kojima (NICT), Hiroshi Harada (Kyoto Univ.) RCS2014-209
For further efficient use of spectrum resource, possibilities of white-spaces communication technology have been discuss... [more] RCS2014-209
pp.73-78
CQ 2014-07-11
14:45
Osaka   A Study on TCP Congestion Avoidance Algorithm with Bi-directional Digital FPU System
Tomofumi Koyama, Fumiki Uzawa, Kazuhiko Mitsuyama, Naohiko Iai, Katsunori Aoki (NHK) CQ2014-37
Television broadcasters use Field Pick-up Unit (FPU) to transfer video by a wireless link. Recently file-based productio... [more] CQ2014-37
pp.123-128
RCS, SR, SRW
(Joint)
2014-03-05
09:05
Tokyo Waseda Univ. A Study on Power Control Techniques considering Inter-eNB Interference for Dynamic TDD based Small Cell Networks in LTE-Advanced Systems
Hiroki Takahashi, Kazunari Yokomakura, Kimihiko Imamura (Sharp) RCS2013-364
This paper investigates interference mitigation techniques for dynamic time division duplex (TDD) based small cell netwo... [more] RCS2013-364
pp.353-358
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