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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 26件中 1~20件目  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
SIS, ITE-BCT 2018-10-26
09:55
Kyoto Kyoto University Clock Tower Centennial Hall Field Trial of 4x4 TDD-SVD-MIMO System
Fumito Ito, Fumiki Uzawa, Kazuhiko Mitsuyama, Naohiko Iai (NHK)
 [more]
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)
CQ 2015-09-02
14:50
Kyoto Kyoto Institute of Technology Evaluation of Influence on Throughput and Transmission Delay by HARQ Retransmission for Bidirectional Digital FPU System
Fumiki Uzawa, Tomofumi Koyama, Takashi Kumagai, Kazuhiko Mitsuyama (NHK), Katsunori Aoki (NHK-ES), Naohiko Iai (NHK) CQ2015-69
File-based video system has become widespread in the television-program production field. The authors are developing a b... [more] CQ2015-69
pp.173-178
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
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
ITE-BCT, IPSJ-AVM, CS, IE [detail] 2012-12-06
09:40
Fukui Fukuisi-chiiki-kouryu-plaza A Study on applying Type-II HARQ Method for Bi-directional FPU using TDD
Fumiki Uzawa, Kazuhiko Mitsuyama, Tetsuomi Ikeda (NHK), Takefumi Hiraguri (NIT)
 [more]
CS 2012-07-13
11:35
Kagoshima China-cho-Kominkan (Okinoerabu Island) A study toward retransmission control scheme on FPU system
Teppei Yoshida, Hiroki Suzuki, Toshiyuki Ogawa, Takefumi Hiraguri (NIT), Kentaro Nishimori (Niigata Univ.), Fumiki Uzawa, Kazuhiko Mitsuyama, Tetsuomi Ikeda (NHK) CS2012-45
This paper proposes the retransmission control scheme to improve delay time and throughput on wireless systems. The obje... [more] CS2012-45
pp.125-129
AP, RCS
(Joint)
2011-11-16
09:45
Aichi Nagoya Congress Center Effect of antenna subset switching delay on reception performance in MIMO systems
Kazuhiko Mitsuyama (NHK/Keio Univ.), Tetsuomi Ikeda (NHK), Tomoaki Ohtsuki (Keio Univ.) RCS2011-190
We have been studying a MIMO system that exploits macrodiversity effect to transmit high-quality videos across wide area... [more] RCS2011-190
pp.7-12
CQ, MoNA, ITE-CE, ITE-BCT [detail] 2011-09-08
13:05
Kumamoto Pref. Univ. Kumamoto A study on duplex method for bi-directional FPU
Fumiki Uzawa, Kazuhiko Mitsuyama, Tetsuomi Ikeda (NHK)
We have started a basic study on a bi-directional transmission system to develop the new microwave band Field Pick-up Un... [more]
RCS, NS
(Joint)
2011-07-22
14:55
Hokkaido Asahikawa Civic Culture Hall Low complexity antenna subset selection method using condition number of channel matrix
Kazuhiko Mitsuyama (NHK/Keio Univ.), Tetsuomi Ikeda (NHK), Tomoaki Ohtsuki (Keio Univ.) RCS2011-109
We have been studying a MIMO system that can transmit high-quality videos across wide area without outage. We have been ... [more] RCS2011-109
pp.205-210
RCS 2011-06-24
17:00
Okinawa Ryukyu Univ. Calculation and Evaluation of MMSE weight matrix using Fixed-point Arithmetic
Kazuhiko Mitsuyama (NHK/Keio Univ.), Tetsuomi Ikeda (NHK), Tomoaki Ohtsuki (Keio Univ.) RCS2011-74
We have been studying a macrodiversity system that can receive Hi-Vision (HDTV) videos across wide area without outage i... [more] RCS2011-74
pp.227-232
RCS 2011-04-22
13:30
Kanagawa Keio University Field Experiment of Macrodiversity Reception on Road Race Course
Kazuhiko Mitsuyama, Fumiki Uzawa, Tetsuomi Ikeda (NHK), Tomoaki Ohtsuki (Keio) RCS2011-14
We have been studying a macrodiversity system that can receive transmitted signals effectively without outage in mobile ... [more] RCS2011-14
pp.77-82
NS, RCS
(Joint)
2010-12-17
15:50
Okayama Okayama Univ. Mobile Propagation Experiment Using Microwave FPU System in Urban Area
Fumiki Uzawa, Kazuhiko Mitsuyama, Tetsuomi Ikeda (NHK) RCS2010-197
We have been studying on microwave FPU (Field Pick-up Unit) for large capacity and high reliability.
It is difficult to... [more]
RCS2010-197
pp.227-232
AN, USN, SR, RCS
(Joint)
2010-10-29
10:10
Osaka Osaka University Prototyping and Performance Evaluation of LDPC-MMSE-SIC System with Time Interleaving
Kazuhiko Mitsuyama, Kohei Kambara, Takayuki Nakagawa, Tetsuomi Ikeda (NHK), Tomoaki Ohtsuki (Keio Univ.) RCS2010-130
 [more] RCS2010-130
pp.151-156
RCS 2009-08-03
16:10
Miyagi Tohoku Univ. Evaluation of SCLDGM code by field experiments
Kohei Kambara, Kazuhiko Mitsuyama, Takayuki Nakagawa, Tetsuomi Ikeda (NHK) RCS2009-91
800MHz band Field Pick-up Unit (FPU) system is mainly used at live marathon programs to transmit the live camera picture... [more] RCS2009-91
pp.79-84
RCS 2009-08-03
16:35
Miyagi Tohoku Univ. Transmission Performance of Space-time Codes in Urban mobile environment
Takayuki Nakagawa, Kazuhiko Mitsuyama, Kohei Kambara, Tetsuomi Ikeda (NHK) RCS2009-92
The authors have been developing an advanced FPU (Field Pick-up Unit) transmission system exploiting AVC/H.264 video cod... [more] RCS2009-92
pp.85-90
NS, RCS
(Joint)
2009-07-17
13:40
Hokkaido Hokkaido University (Hokkaido) Experimental Evaluation of LDPC-Coded MIMO System with Spatial and Time Interleavers
Kazuhiko Mitsuyama, Kohei Kambara, Takayuki Nakagawa, Tetsuomi Ikeda (NHK), Tomoaki Ohtsuki (Keio Univ.) RCS2009-68
We have been developing an 800MHz-band MIMO-OFDM FPU system that can achieve a higher spectrum efficiency and more relia... [more] RCS2009-68
pp.89-94
EMCJ, ITE-BCT 2009-03-13
15:30
Tokyo Kikai-Shinko-Kaikan Bldg. 800Mz-band Outdoor Transmission Experiment of Space-Time Coded 2x2 MIMO-OFDM
Takayuki Nakagawa, Kazuhiko Mitsuyama, Kohei Kambara, Tetsuomi Ikeda (NHK) EMCJ2008-123
The authors have been developing an advanced FPU (Field Pick-up Unit) transmission system exploiting AVC/H.264 video cod... [more] EMCJ2008-123
pp.55-60
RCS 2008-08-28
13:25
Hokkaido Hokkaido University Study of FEC for 800MHz band FPU system -- Analysis of LDGM structure for LDPC concatenated code --
Kohei Kambara, Kazuhiko Mitsuyama, Takayuki Nakagawa, Tetsuomi Ikeda (NHK) RCS2008-79
800MHz band Field Pick-up Unit (FPU) system is mainly used at live marathon programs to transmit the live camera picture... [more] RCS2008-79
pp.157-162
RCS 2008-08-28
13:50
Hokkaido Hokkaido University A Study of Iterative Detection and Decoding in LDPC-Coded MIMO for an 800MHz-band FPU System
Kazuhiko Mitsuyama, Kohei Kambara, Takayuki Nakagawa, Tetsuomi Ikeda (NHK), Tomoaki Ohtsuki (Keio Univ.) RCS2008-80
We have been studying MIMO techniques to enhance the frequency use efficiency of an 800MHz-band FPU system, which is oft... [more] RCS2008-80
pp.163-168
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