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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 34  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
RCS, NS
(Joint)
2022-12-16
11:30
Aichi Nagoya Institute of Technology, and Online
(Primary: On-site, Secondary: Online)
[Invited Talk] Sharp's Activities for Ultra-High-Definition Video Transmission
Yasuhiro Hamaguchi, Hideo Namba, Takashi Onodera, Ryota Yamada, Osamu Nakamura, Hiromichi Tomeba, Takuhiro Sato (Sharp) NS2022-144 RCS2022-202
 [more] NS2022-144 RCS2022-202
p.82(NS), p.93(RCS)
CQ, ICM, NS, NV
(Joint)
2021-11-25
11:30
Fukuoka JR Hakata Stn. Hakata EkiHigashi Rental Room
(Primary: On-site, Secondary: Online)
Cloud avoidance network for high-speed optical communications between space and ground -- Space optical direct communication technology --
Tatsuya Mukai (JAXA), Yoshihisa Takayama (TU), Takashi Onoe (TSOL) NS2021-86
Space agencies have ever used contemporary radio technologies for transmissions of a large volume of observation data fr... [more] NS2021-86
pp.13-17
SRW, SeMI, CNR
(Joint)
2021-11-26
15:00
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
[Poster Presentation] Performance of Least-squares Channel Estimation for Large-scale MU-MIMO-OFDM in the Presence of Terminal Mobility
Yutaka Itoya, Shuhei Saito, Hirofumi Suganuma (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) SRW2021-51 SeMI2021-50 CNR2021-25
This report investigates the effect of multiplexing-based least squares (LS) channel estimation on uplink large-scale MU... [more] SRW2021-51 SeMI2021-50 CNR2021-25
pp.82-83(SRW), pp.69-70(SeMI), pp.59-60(CNR)
RCS 2021-04-22
10:55
Online Online A Study on Deep Learning Based Resource Allocation Method to Control System Capacity and Fairness for MU-MIMO THP
Yukiko Shimbo, Hirofumi Suganuma (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2021-2
This report proposes a deep-learning-based resource allocation method to adaptively control system capacity and fairness... [more] RCS2021-2
pp.6-10
RCS, SAT
(Joint)
2019-08-23
11:20
Aichi Nagoya University A Study on Theoretical System Capacity of Multi-user MIMO-OFDM THP in the Presence of Terminal Mobility
Ryota Mizutani, Yukiko Shimbo, Hirofumi Suganuma (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2019-165
This report investigates the theoretical system capacity of multi-user multiple-input multiple-output orthogonal frequen... [more] RCS2019-165
pp.103-107
RCS, SR, SRW
(Joint)
2019-03-06
11:20
Kanagawa YRP [Encouragement Talk] Impact of Antenna Arrangement on Theoretical System Capacity of MU-MIMO in the Presence of Terminal Mobility
Hirofumi Suganuma, Yukiko Shimbo (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2018-287
(To be available after the conference date) [more] RCS2018-287
pp.31-36
IN, RCS, NV
(Joint)
2018-05-11
10:05
Kanagawa Keio University A Study on Theoretical System Capacity Performance of MU-MIMO THP in the Presence of Terminal Mobility
Hirofumi Suganuma, Yukiko Shimbo, Nobuhiro Hiruma (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2018-32
MU-MIMO Tomlinson-Harashima precoding (THP) achieves higher system capacity than MU-MIMO linear precoding (LP) thanks to... [more] RCS2018-32
pp.59-64
RCS, SAT
(Joint)
2017-08-17
11:15
Niigata Niigata Univ. Theoretical Analysis of System Capacity Performance in MU-MIMO THP
Hirofumi Suganuma, Hiruma Nobuhiro (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2017-148
MU-MIMO Tomlinson-Harashima precoding (THP) achieves higher system capacity comparing with MU-MIMO linear precoding (LP)... [more] RCS2017-148
pp.31-35
RCS 2016-06-23
10:30
Okinawa Univ. of the Ryukyus A Study on Cost Reduction of Ordering Calculation Using Frequency Correlation in MU-MIMO-OFDM THP
Nobuhiro Hiruma, Tomoki Maruko (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2016-62
In MU-MIMO THP, the ordering process is effective to improve the transmission performance. However, the ordering process... [more] RCS2016-62
pp.93-98
NS, RCS
(Joint)
2015-12-18
15:15
Ehime Matsuyama Community Center A User Scheduling Technique Suitable for Multi-User MIMO Using Tomlinson-Harashima Precoding
Tomoki Maruko, Takahiro Yamaguchi (Waseda Univ.), Tomoki Yoshimura, Hiromichi Tomeba, Takashi Onodera (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2015-267
MU-MIMO is an attracting technique to realize high-speed and large-capacity wireless communications because independent ... [more] RCS2015-267
pp.139-144
RCS 2015-06-25
14:30
Hokkaido Hokkaido Univ. Study on Transmission Power Control Schemes based on Carrier Sense Level in Next Generation Wireless LAN
Tomoki Yoshimura, Hiromichi Tomeba, Takashi Onodera, Yasuhiro Hamaguchi (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2015-74
For next generation wireless LAN system (IEEE802.11ax), the increase of clear channel assessment (Carrier Sense) level (... [more] RCS2015-74
pp.167-172
AP, RCS
(Joint)
2014-11-13
11:15
Yamagata Yamagata University, Yonezawa Campus A study on interference suppression techniques for downlink nonlinear MU-MIMO
Hiromichi Tomeba, Tomoki Yoshimura, Takashi Onodera, Minoru Kubota (Sharp), Fumiaki Maehara (Waseda Univ.) RCS2014-212
Multi-user MIMO (MU-MIMO), which can achieve the MIMO transmission by regarding the multiple users as the virtual large ... [more] RCS2014-212
pp.91-96
RCS, SR, SRW
(Joint)
2013-02-27
09:20
Tokyo Waseda Univ. On MMSE receive antenna combining for downlink THP MU-MIMO
Hirotoshi Takahashi (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera, Minoru Kubota (Sharp Corp.), Fumiaki Maehara, Fumio Takahata (Waseda Univ.) RCS2012-285
This paper proposes an MMSE receive antenna combining suitable for THP MU-MIMO, and shows that it can provide a better t... [more] RCS2012-285
pp.7-12
RCS, SR, SRW
(Joint)
2013-02-27
10:50
Tokyo Waseda Univ. A study of perturbation vector search for downlink MU-MIMO using Vector Perturbation
Masato Takada (Waseda Univ.), Hiromichi Tomeba, Takashi Onodera, Minoru Kubota (Sharp), Fumiaki Maehara, Fumio Takahata (Waseda Univ.) RCS2012-289
This paper proposes the computational complexity reduction technique for the downlink(DL) Multi-User Multiple Input Mult... [more] RCS2012-289
pp.31-36
OPE, LQE, OCS 2012-10-26
13:30
Miyazaki   Field evaluation of PDL penalty of 100 Gb/s PDM-QPSK signals using installed fiber with a large DGD
Ayako Iwaki, Takeshi Kawai, Yohei Sakamaki, Shuto Yamamoto, Tetsuro Inui, Hiroto Kawakami, Shogo Yamanaka, Takashi Ono, Kunihiko Mori, Masahiro Suzuki, Tomoyoshi Kataoka, Mitsunori Fukutoku, Toshikazu Sakano, Masahito Tomizawa, Yutaka Miyamoto (NTT) OCS2012-67 OPE2012-118 LQE2012-84
Transmission penalty caused by PDL affects 100 Gb/s PDM-QPSK signals as the combined effects of DGD and PDL. We reported... [more] OCS2012-67 OPE2012-118 LQE2012-84
pp.135-140
NS, OCS, PN
(Joint)
2012-06-21
13:30
Yamagata Yamagata Univ. 40G/100G Mixed-Rate PDM-QPSK Real-Time DWDM Transmission in Field Testbed Using Commercially-Available Installed Fibers
Shuto Yamamoto, Tetsuro Inui, Hiroto Kawakami, Shogo Yamanaka, Toshikazu Sakano, Takeshi Kawai, Takashi Ono, Ayako Iwaki, Tadao Nakagawa (NTT), Takashi Kotanigawa (NTT Com) OCS2012-9
We demonstrate 40-G and 100-G mixed-rate PDM-QPSK DWDM transmission using real-time DSP in 580-km field testbed consisti... [more] OCS2012-9
pp.1-6
OCS, LQE, OPE 2011-10-28
11:55
Kochi Kochi University of Technology Cost-effective optical transceiver for 40G SONET/SDH signals employing 40Gbit/s multi-lane distribution interface converter
Takashi Ono, Shigeki Aisawa, Masahito Tomizawa (NTT) OCS2011-86 OPE2011-124 LQE2011-87
ITU-T has defined parallel transmission frame structures such as Synchronous Transport Lane 256.4 (STL-256.4) for STM-25... [more] OCS2011-86 OPE2011-124 LQE2011-87
pp.165-170
PN, OCS, NS
(Joint)
2011-06-24
16:30
Wakayama Wakayama University Opto-Electronic Hybrid Node
Takuya Ohara, Akihiro Kadohata, Takeshi Kawai, Takashi Ono, Masahiro Suzuki, Tetsuro Komukai, Akira Hirano, Mitsunori Fukutoku (NTT) OCS2011-25
(Advance abstract in Japanese is available) [more] OCS2011-25
pp.77-82
PRMU 2011-03-11
09:00
Ibaraki   Generating Hierarchical Virtual Folder by Metadata Frequency Difference
Mitsuharu Oba, Toshiko Matsumoto, Yasuaki Iwata, Takashi Onoyama (Hitachi Solutions) PRMU2010-266
To achieve easy search and reuse of business documents stored in a file server, we propose a new clustering method to ge... [more] PRMU2010-266
pp.171-176
ET 2011-03-04
13:20
Tokushima   Development and Evaluation of Teaching Materials for Embedded System Engineer Education utilizing Open Source Software
Kentaro Kitamura, Kazuo Kato, Takashi Ono (TGU), Hitoshi Sasaki (Takushoku Univ.), Arimitsu Shikoda (TGU) ET2010-117
 [more] ET2010-117
pp.143-146
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