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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 23  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
IN, RCS, NV
(Joint)
2022-05-26
13:15
Kanagawa Keio University (Hiyoshi Campus)
(Primary: On-site, Secondary: Online)
[Invited Lecture] Method of uplink low latency using 5G Split Option 6 I/F
Yuki Yonezawa, Koji Akita, Daisuke Uchida, Tomoya Tandai (TOSHIBA) IN2022-4 RCS2022-16
 [more] IN2022-4 RCS2022-16
p.19
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
RCS, SR, SRW
(Joint)
2021-03-05
16:55
Online Online Compensation for axis misalignment of UCA with OAM beam control
Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba) RCS2020-260
In recent years, mobile data traffic has increased explosively due to increasing wireless devices. Capacity enhancement ... [more] RCS2020-260
pp.261-266
RCS 2020-06-25
10:50
Online Online Suppression of performance degradation due to misalignment in OAM multiplexing
Nobuhiko Sakuraya, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ), Tomoya Tandai, Daisuke Uchida (Toshiba) RCS2020-33
In recent years, mobile data traffic has increased explosively due to increasing wireless devices. Capacity enhancement ... [more] RCS2020-33
pp.61-66
SRW 2020-01-14
13:50
Kanagawa TBD [Invited Talk] Long Distance Communication using E-band polarization MIMO-OFDM Testbed for 5G Backhaul Systems
Daisuke Uchida, Tamio Kawaguchi, Daiki Yoda, Makoto Sano, Koji Akita (Toshiba), Magnus Sandell, Evgeny Tsimbalo, Seifallah Jardak, Ichiro Seto (Toshiba Research Europe) SRW2019-55
Many research institutions have paid attention to the 5G systems, which have various size cells. Since new base stations... [more] SRW2019-55
p.21
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
RCS, SAT
(Joint)
2019-08-22
14:30
Aichi Nagoya University [Invited Lecture] Long Distance Communications using a Novel Testbed with Polarization MIMO-OFDM Systems for 5G Backhaul Applications
Daisuke Uchida, Tamio Kawaguchi, Daiki Yoda, Makoto Sano, Koji Akita (Toshiba Corp.), Magnus Sandell, Evgeny Tsimbalo, Seifallah Jardak, Ichiro Seto (Toshiba Research Europe Ltd.) SAT2019-27 RCS2019-156
Many researches have paid attention to the 5th generation mobile radio communication systems, and the expectations for w... [more] SAT2019-27 RCS2019-156
pp.53-58
SAT, RCS
(Joint)
2018-08-09
10:55
Iwate Iwate University A Study on an Adaptive Bit-Loading Algorithm with Channel Estimation for 5G backhaul Systems
Daiki Yoda, Daisuke Uchida, Koji Akita, Tomoya Tandai (Toshiba) RCS2018-132
In recent years, the realization of the fifth generation mobile communication system has been actively investigated and ... [more] RCS2018-132
pp.7-12
RCS 2018-06-22
10:40
Nagasaki Nagasaki University Evaluation of OAM Based Mode Division Multiplexing Transmission in Different Propagation Environments
Ayano Yamamoto, Toshihiko Nishimura, Takeo Ohgane (Hokkaido Univ.), Tomoya Tandai, Daisuke Uchida (Toshiba) RCS2018-69
Orbital angular momentum (OAM) is a physical quantity of an electromagnetic wave that is independent of polarization, a... [more] RCS2018-69
pp.201-206
AP, RCS
(Joint)
2017-11-09
15:50
Fukuoka Fukuoka University [Invited Lecture] A Study on an Antenna Arrangement of Line-Of-Sight MIMO Communications for 5G Backhaul Systems
Daisuke Uchida, Daiki Yoda, Koji Akita, Tomoya Tandai (Toshiba Corp.) AP2017-131 RCS2017-236
Many research institutions have paid attention to the 5th generation
mobile radio communication systems (5G). The exp... [more]
AP2017-131 RCS2017-236
pp.125-130(AP), pp.181-186(RCS)
RCS 2017-10-20
14:50
Miyagi Tohoku Institute of Technology [Invited Lecture] Studies on high speed wireless communication for 5G backhaul systems
Koji Akita, Daiki Yoda, Daisuke Uchida, Tomoya Tandai (Toshiba) RCS2017-197
The 5th generation mobile radio communication system (5G) is expected to widely spread in the near future. In 5G, ultra-... [more] RCS2017-197
pp.161-165
ICD, CPSY 2016-12-15
15:30
Tokyo Tokyo Institute of Technology [Poster Presentation] Quadrature-phase-detection TDC for single-slope ADCs
Sayuri Yokoyama, Sokuzin Na, Daisuke Uchida, Masayuki Ikebe, Tetsuya Asai, Masato Motomura (Hokkaido Univ.) ICD2016-81 CPSY2016-87
(To be available after the conference date) [more] ICD2016-81 CPSY2016-87
p.89
AP 2011-12-15
13:40
Tokyo Kikai-Shinko-Kaikan Bldg. Multi-Antenna System Using Radiation Patterns Wisely
Daisuke Uchida, Hiroyuki Arai (Yokohama National Univ.) AP2011-121
This report presents a technique to enhance transmission characteristics of multi-antenna systems using radiation patter... [more] AP2011-121
pp.13-18
AP, SAT
(Joint)
2011-07-14
11:30
Nagano Fac. Eng., Shinshu Univ. A remark of parameters for enhancing MIMO channel capacities
Daisuke Uchida, Hiroyuki Arai (Yokohama National Univ.) AP2011-37
This report presents the evaluation for parameters to enhance channel capacity in 2x2 MIMO systems. Although low spatia... [more] AP2011-37
pp.57-62
AP, MW
(Joint)
2011-03-03
09:55
Ibaraki Ibaraki Univ. A Novel Feeding Circuit with Switching Function of Cardioid and Figure of Eight Radiation Patterns
Daisuke Uchida, Hiroyuki Arai (Yokohama National Univ.), Young Joong Yoon (Yonsei Univ.) AP2010-175
In diversity and MIMO applications, pattern reconfigurable techniques are required because the propagation path of a rad... [more] AP2010-175
pp.7-12
AP, RCS
(Joint)
2010-11-12
14:30
Fukui Fukui Univ. Assessment of BER and Channel Capacity with Passive Nonregenerative Relaying System
Atsuki Mizuno, Daisuke Uchida, Hiroyuki Arai (YNU) AP2010-115
 [more] AP2010-115
pp.137-141
IT, ISEC, WBS 2010-03-05
10:15
Nagano Nagano-Engineering Campus, Shinshu University Obtaining Local Information from FPGA Using Electromagnetic Analysis
Takao Ochiai, Dai Yamamoto, Kouichi Itoh, Masahiko Takenaka, Naoya Torii, Daisuke Uchida, Toshiaki Nagai, Shinichi Wakana (Fujitsu Labs.) IT2009-105 ISEC2009-113 WBS2009-84
A side channel attack by means of electromagnetic analysis for SASEBO-AES was investigated. Local information from FPGA ... [more] IT2009-105 ISEC2009-113 WBS2009-84
pp.217-223
RCS, AP
(Joint)
2009-11-27
11:40
Tokyo Tokyo Inst. of Tech. Comparative Discussion of Spatial Multiplexing and Diversity Scheme by the Second Eigenvalue in Indoor 2x2 MIMO System
Mitsuki Sagara, Daisuke Uchida, Hiroyuki Arai (Yokohama National Univ.) AP2009-134
There are two kinds of MIMO systems with spatial multiplexing method and diversity method. When the channel capacity is ... [more] AP2009-134
pp.91-96
AP 2009-09-03
10:00
Aomori Hachinohe Inst. of Tech. Antenna Selection Based on Eigenvalue in Dual-Polarized Directional MIMO Antenna
Daisuke Uchida, Hiroyuki Arai (Yokohama National Univ.), Yuki Inoue, Keizo Cho (NTT DOCOMO) AP2009-80
In MIMO transmission, it is possible to communicate efficiently by beneficial use of radiation pattern and polarization.... [more] AP2009-80
pp.7-12
AP 2009-03-10
16:20
Overseas University of Macau A Dual Polarization 8-port MIMO Antenna with Dipole and Slot Antennas.
Atsushi Suyama, Daisuke Uchida, Hiroyuki Arai (Yokohama National Univ.), Yuki Inoue, Keizo Cho (NTT DoCoMo) AP2008-234
It has been reported that the characteristic of channel capacity is improved when directional antennas and dual polariza... [more] AP2008-234
pp.113-116
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