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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, SR, SRW (Joint) |
2022-03-02 10:25 |
Online | Online | Random-Phase based Physical-Layer Security Scheme Robust against Time-Variant MIMO Channels Yurika Matsumoto, Yuyuan Chang, Kazuhiko Fukawa (Tokyo Tech)  RCS2021-252 |
As conventional physical layer security schemes for wireless communications, artificial noise (AN) and artificial fast f... [more] | RCS2021-252 pp.7-12 |
| 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 |
| 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 |
| 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 | 2015-06-24 17:35 |
Hokkaido | Hokkaido Univ. | Consideration on Transceiver Structure and Effect for Reducing Feedback Signal Overhead for FDD Using Carrier Frequency Swapping Takahiro Ohtomo (Tokyo City Univ.), Keisuke Saito (NTT DOCOMO), Mamoru Sawahashi (Tokyo City Univ.) RCS2015-56 |
This paper presets merits and demerits of frequency division duplexing (FDD) using the carrier frequency swapping which ... [more] | RCS2015-56 pp.61-66 |
| IN, RCS (Joint) |
2014-05-15 10:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | CSI Reference Signal Multiplexing Using Carrier Frequency Swapping for FDD High-Order MIMO SDM Mamoru Sawahashi (Tokyo City Univ.), Teruo Kawamura, Yuichi Kakishima (NTT DOCOMO) RCS2014-20 |
This paper proposes channel state information - reference signal (CSI-RS) multiplexing employing carrier frequency swapp... [more] | RCS2014-20 pp.7-12 |
| RCS, SR, SRW (Joint) |
2014-03-05 14:00 |
Tokyo | Waseda Univ. | A Pilot Contamination Averse Closed-Loop Scheme for TDD-Based Massive MIMO Systems Oussama Souihli, Yasuyuki Hatakawa, Satoshi Konishi (KDDI R&D Labs) RCS2013-384 |
TDD-based Massive MIMO systems rely on channel reciprocity assumption (i.e. that the downlink channel matrix can be infe... [more] | RCS2013-384 pp.469-474 |
| RCS, SAT (Joint) |
2009-12-18 10:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Performance Evaluation of Rank-1 Precoded Sounding Reference Signal in LTE-Advanced Yoshitaka Hara, Noriyuki Fukui, Hiroshi Kubo (Mitsubishi Electric) RCS2009-186 |
In LTE-Advanced, a terminal can transmit signals simultaneously from 4 antennas, while an LTE terminal transmits a signa... [more] | RCS2009-186 pp.113-118 |
| RCS, IN (Joint) |
2009-05-22 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Over-the-air Inter-node Carrier Phase Synchronization for Cooperative Coherent Transmission Yoshitaka Hara, Noriyuki Fukui, Hiroshi Kubo (Mitsubishi Electric) RCS2009-17 |
This paper proposes new over-the-air inter-node carrier phase synchronization to maintain constant inter-node carrier ph... [more] | RCS2009-17 pp.97-102 |
| RCS, IN (Joint) |
2009-05-22 13:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Performance Evaluation of Over-the-air Inter-node Carrier Phase Synchronization for LTE-Advanced Yoshitaka Hara, Noriyuki Fukui, Hiroshi Kubo (Mitsubishi Electric) RCS2009-18 |
This paper presents performance evaluation of over-the-air inter-node carrier phase synchronization proposed in [1] for ... [more] | RCS2009-18 pp.103-108 |
| RCS, AN, MoNA, SR, WBS (Joint) |
2008-03-06 17:10 |
Kanagawa | YRP | A Non-Regenerative/Coherent Combining Relaying System Tran Manh Hoang (Hanoi U of Tech), Shinsuke Hara (OCU), Yoshitaka Hara (Mitsubishi Electric) RCS2007-228 |
This paper investigates the performance of a non-regenerative/coherent combining relaying system. To derive the optimal ... [more] | RCS2007-228 pp.251-256 |
| RCS, AN, MoNA, SR, WBS (Joint) |
2008-03-06 17:30 |
Kanagawa | YRP | An Ultra Accurate Carrier Frequency Control Between Wireless Stations Yoshitaka Hara, Kazuaki Ishioka, Yasuhiro Yano, Hiroshi Kubo (Mitsubishi Electric) RCS2007-229 |
This paper proposes an ultra accurate carrier frequency control, in which two wireless stations can keep a very close ca... [more] | RCS2007-229 pp.257-262 |
| RCS, AN, MoNA, SR, WBS (Joint) |
2008-03-07 16:30 |
Kanagawa | YRP | Performance Comparison between Feedback and Feedback-less Method to Obtain CSI in Multi-user MIMO Precoding Keiichi Mizutani, Kei Sakaguchi, Kiyomichi Araki (Tokyo Tech) RCS2007-242 |
In this report, a performance comparison between feedback method and feedback-less method to obtain channel state inform... [more] | RCS2007-242 pp.335-340 |
| RCS, SIP | 2008-01-24 13:40 |
Hiroshima | Hiroshima City Uni. | Cooperative Control of Antenna Array Calibration in OFDMA/TDD Systems Yoshitaka Hara, Yasuhiro Yano, Hiroshi Kubo (Mitsubishi Electric Corp.) SIP2007-141 RCS2007-144 |
This paper proposes antenna array calibration to exploit channel reciprocity through a cooperative supporter in OFDMA/TD... [more] | SIP2007-141 RCS2007-144 pp.61-65 |
| RCS, MoNA, WBS, SR, MW (Joint) |
2007-03-08 09:40 |
Kanagawa | YRP | Precoding Scheme Coping with Co-Channel Interference for MIMO-TDD systems Atsuo Umi, Kazuhiko Fukawa, Satoshi Suyama, Hiroshi Suzuki (Titech), Takahiro Asai, Hui Shi (NTT DoCoMo) RCS2006-257 |
TDD mobile communication systems with MIMO-OFDM can exploit the channel reciprocity between a transmitter and a receiver... [more] | RCS2006-257 pp.91-94 |
| RCS, NS (Joint) |
2006-07-21 14:55 |
Hokkaido | Hokkaido Univ. | CQI Reporting in OFDMA/TDD Systems with Cochannel Interference Yoshitaka Hara, Kazuyoshi Oshima (Mitsubishi Electric ITE-TCL) RCS2006-94 |
This paper proposes a new uplink signalling to report the terminal's channel quality in multiple subbands to the base st... [more] | RCS2006-94 pp.209-214 |
| RCS | 2006-04-21 10:40 |
Osaka | Osaka Univ. Nakanoshima Center | A Study on Reduction of CSI feedback for Frequency Domain Scheduling in OFDMA/TDD Systems Haruka Obata, Takashi Baba, Seiichi Sampei (Osaka Univ.) RCS2006-5 |
This paper proposes a channel state information (CSI) reduction technique for frequency domain scheduling in orthogonal ... [more] | RCS2006-5 pp.25-30 |
| RCS, AP, WBS, MW, MoNA | 2005-03-02 13:30 |
Kanagawa | Yokosuka Research Park | Experiments of IEEE802.15.4 ESPARSKey(Encryption Scheme Parasite Array Radiator Secret Key)
-- Carrier Frequency Switching Scheme -- Tomoyuki Aono, Keisuke Higuchi, Makoto Taromaru, Takashi Ohira, Bokuji Komiyama (ATR), Hideichi Sasaoka (Doshisha Univ.) |
As a counter measure scheme against eavesdroppers of wireless communication systems, the secret key agreement system has... [more] | WBS2004-66 AP2004-247 RCS2004-334 MoMuC2004-117 MW2004-244 pp.61-66 |
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