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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 29  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, SIP, IT 2022-01-21
11:45
Online Online Study on compensation for axis misalignment of UCA with multiple UCAs
Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba) IT2021-76 SIP2021-84 RCS2021-244
In recent years, mobile data traffic has increased explosively due to increasing wireless devices. Capacity enhancement ... [more] IT2021-76 SIP2021-84 RCS2021-244
pp.270-275
IT 2020-12-03
14:20
Online Online Outage Probabilities of Three-Node Bidirectional Relay Systems with Finite Block-Length Transmission over Rayleigh Fading Channels
Masaya Kambara, Tomotaka Kimura, Jun Cheng (Doshisha Univ.) IT2020-56
Outage probabilities of three-node bidirectional relaying systems over quasi-state Rayleigh channels with finite-blockle... [more] IT2020-56
pp.171-176
RCS 2020-06-24
- 2020-06-26
Online Online Block Parallel Gibbs Sampling MIMO Detection with Maximum Ratio Combining
Kosuke Tomura, Yukitoshi Sanada, Yutaro Kobayashi (Keio Univ.) RCS2020-56
In this report, block parallel Gibbs sampling (BPGS) multiple-input multiple-output (MIMO) detection is proposed. In a c... [more] RCS2020-56
pp.199-204
AP, RCS
(Joint)
2019-11-20
14:15
Saga Saga Univ. A Study on Performance Improvement for OAM Mode Multiplexing Using Multiple UCAs
Ayano Yamamoto, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ.), Tomoya Tandai, Daisuke Uchida (Toshiba Corp.) RCS2019-212
A novel spatial multiplexing transmission system using orthogonality of orbital angular momentum (OAM) mode has been att... [more] RCS2019-212
pp.55-60
AP, MW
(Joint)
2017-09-22
10:10
Saitama Saitama University Outdoor Experiment Evaluation of Analog-Digital Hybrid Massive MIMO
Ryotaro Taniguchi, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai, Koshiro Kitao (NTT DOCOMO) AP2017-92
Massive MIMO transmission whose number of antennas is much larger than the number of user terminals, has been attracted ... [more] AP2017-92
pp.25-30
OCS, OFT, IEE-CMN, ITE-BCT
(Joint) [detail]
2015-11-13
15:20
Ehime Matsuyama Civic Center Hitless Spectrum Defragmentation and Optical Path Switching using Maximum Ratio Combining in Optical Diversity Transmission
Kohei Saito, Masahiro Yokota, Takashi Kotanigawa, Hideki Maeda, Fukutaro Hamaoka, Shuto Yamamoto (NTT), Suzuki Masahiro, Seki Takeshi (NTT Com) OCS2015-87
Economical infrastructure is required for prospective optical transport networks. To achieve such networks, it is import... [more] OCS2015-87
pp.65-70
RCS 2015-06-24
14:45
Hokkaido Hokkaido Univ. A Study on OFDM Receiver Processes for High-Speed Train Environments at 60 GHz Band
Yuyuan Chang, Masashi Furukawa, Kazuhiko Fukawa (Tokyo Tech.) RCS2015-51
An iterative receiver, proposed in our previous works, employs decision directed phase noise compensation (DD-PNC) and d... [more] RCS2015-51
pp.31-36
RCS, SR, SRW
(Joint)
2015-03-04
16:50
Tokyo Tokyo Institute of Technology Interference reduction characteristics by cylindrical array based massive MIMO with analog-digital hybrid processing in a real microcell environment
Ryochi Kataoka, Junpei Miyazawa, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) RCS2014-323
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] RCS2014-323
pp.129-134
AP 2015-02-19
10:55
Hyogo Chusho-kigyou center at Amagasaki-City Interference reduction characteristics by circular array based massive MIMO in a real microcell environment
Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) AP2014-189
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] AP2014-189
pp.15-20
AP 2015-01-23
10:45
Ehime Ehime University Performance evaluation of Massive MIMO with analog-digital hybrid processing in a circular cell environment
Junpei Miyazawa, Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTTdocomo) AP2014-176
Massive MIMO enables the improvement on the transmission rate without increasing the burden on
the signal processing by... [more]
AP2014-176
pp.85-90
AP, MW
(Joint)
2014-09-18
10:55
Tokyo Tokyo Institute of Technology, Ookayama Campus Quantitative evaluation by antenna selection on Massive MIMO
Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTT DOCOMO) AP2014-93
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] AP2014-93
pp.9-14
AP 2014-04-17
11:05
Kyoto Ritsumeikan University (Suzaku Campus) Performance evaluation by antenna selection using real propagation channel on Massive MIMO
Ryochi Kataoka, Kentaro Nishimori (Niigata Univ.), Ngochao Tran, Tetsuro Imai (NTT DOCOMO) AP2014-3
Massive MIMO enables the improvement on the transmission rate without increasing the burden on the signal processing by ... [more] AP2014-3
pp.13-18
RCS, SR, SRW
(Joint)
2014-03-03
16:15
Tokyo Waseda Univ. Simple Diversity Combining Techniques for Cyclostationarity Detection Based Spectrum Sensing of OFDM Signals in Cognitive Radio
Shusuke Narieda (Akashi Nat. Coll. of Tech.) SR2013-102
This paper presents simple diversity combining techniques for cyclostationarity detection based spectrum sensing in cogn... [more] SR2013-102
pp.41-46
AP 2013-03-14
11:20
Kanagawa Yugawara-Shoko-Kaikan Bldg. A High-Sensitivity MRC Array Antenna for Tablet Handsets Considering the Mutual Interactions Between the Holding Angle and Broadcasting Waves Polarization
Makoto Yamazaki, Kazuhiro Honda, Koichi Ogawa (Toyama Univ.) AP2012-166
This paper presents a high-sensitivity MRC array antenna used for a digital broadcasting portable TV set. The sensitivit... [more] AP2012-166
pp.13-18
SIP, RCS 2013-02-01
13:25
Hiroshima Viewport-Kure-Hotel (Kure) Performance Evaluation of Belief-Propagation Algorithm with MRC for Signal Detection in a Large Scale MIMO System
Takashi Abiko, Wataru Fukuda, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa (Hokkaido Univ.), Yusuke Ohwatari, Yoshihisa Kishiyama (NTT DOCOMO) SIP2012-120 RCS2012-277
Multiple-input multiple-output (MIMO) systems are well known as a method to improve the throughput performance. Recently... [more] SIP2012-120 RCS2012-277
pp.231-236
AP 2012-12-13
14:05
Tokyo Kikai-Shinko-Kaikan Bldg. Mutual Interactions Between the Holding Angle and Broadcasting Waves Polarization on the Sensitivity of an MRC Array for Portable Digital TV Sets
Makoto Yamazaki, Kazuhiro Honda, Koichi Ogawa (Toyama Univ.) AP2012-120
This paper presents an analysis of the mutual interactions between the holding angle and broadcasting waves polarization... [more] AP2012-120
pp.17-22
AP, WPT
(Joint)
2012-08-27
10:10
Niigata Niigata Univ. Automatic Impedance Matching of a Tablet Handset 4-Branch MRC Array Close to the Human Hands
Makoto Yamazaki, Kazuhiro Honda, Koichi Ogawa (Toyama Univ.) AP2012-68
This paper presents basic investigations on the automatic impedance matching implemented in a 4-branch MRC array used fo... [more] AP2012-68
pp.1-6
RCS, AN, SR, USN
(Joint)
2011-10-26
08:50
Tokyo Sophia Univ. Investigations on Best Combining Scheme of Diversity Branches in Joint MLD for PUCCH in LTE Uplink
Hideyuki Numata (Tokyo City Univ.), Teruo Kawamura (NTT DOCOMO), Mamoru Sawahashi (Tokyo City Univ.) RCS2011-140
In Release 8 Long-Term Evolution (LTE) in 3rd generation partnership project (3GPP), uplink control channel called physi... [more] RCS2011-140
pp.1-6
SIS 2010-06-10
10:45
Hokkaido Abashiri Public Auditorium Performance Improvement Method for Digital Terrestrial Television Broadcasting Under Fast Fading Channel
Tatsumi Uwai, Yuhei Nagao, Masayuki Kurosaki, Hiroshi Ochi (Kyushu Inst. of Tech.) SIS2010-3
Digital Terrestrial Television Broadcasting (DTTB) provides high definition television (HDTV) and mobile broadcasting se... [more] SIS2010-3
pp.13-18
SR 2009-07-30
11:45
Tokyo Tokyo institute of technology Transmission Schemes of Cognitive Radio System with Power Control over Rayleigh Fading
Chen Sun, Yohannes D. Alemseged, Ha Nguyen Tran, Hiroshi Harada (NICT) SR2009-43
This paper addresses the transmission schemes of cognitive radio system (CRS) with power control. An adaptive power cont... [more] SR2009-43
pp.131-138
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