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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SRW | 2024-01-15 13:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Multi-Cell Expansion Technology for Dynamic Full-Duplex Cellular System on 5G Uplink by Distributing Base Station Reception Function Yusei Yasuba, Keita Fukushima, Keiichi Mizutani, Hiroshi Harada (Kyoto Univ.)  SRW2023-43 |
To accommodate increasing data traffic, in-band full-duplex has attracted much attention because of the improved spectra... [more] | SRW2023-43 pp.24-29 |
| RCS, SAT (Joint) |
2013-08-29 15:45 |
Nagano | Shinshu Univ. | Single-carrier MIMO Transmission Using Adaptive Selection of Modulation Level and Spatial Multiplexing Order Ryo Nagaoka, Shinya Kumagai, Fumiyuki Adachi (Tohoku Univ.) RCS2013-128 |
Multiple-input multiple-output (MIMO) transmission, which uses multiple antennas at transmitter and receiver, can increa... [more] | RCS2013-128 pp.31-36 |
| RCS, SR, SRW (Joint) |
2013-02-27 14:30 |
Tokyo | Waseda Univ. | Single-carrier MIMO Adaptive Multiplexing Order Selecting Transmission Using Cyclic Delay Pilot Channel Estimation Ryo Nagaoka, Shinya Kumagai, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2012-296 |
There is a trade-off between the spatial diversity and the spatial multiplexing in multiple-input multiple-output (MIMO)... [more] | RCS2012-296 pp.73-78 |
| RCS | 2012-06-21 10:20 |
Hokkaido | Hakodate City Central Library | Study on Single-carrier MIMO Spatial Multiplexing/Diversity Switching Methods in a Multi-cell Environment Ryo Nagaoka, Shinya Kumagai, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2012-44 |
Multiple-Input Multiple-Output (MIMO) which uses multiple transmit and receive antennas can increase the maximum transmi... [more] | RCS2012-44 pp.7-12 |
| SR, RCS, SRW (Joint) |
2012-03-09 14:15 |
Kanagawa | YRP | Channel Capacity Of Uplink Single-Carrier Cooperative AF Relay Using Direct/Cooperative Relay Switching In A Multi-Cell Envirionment Masayuki Nakada, Tatsunori Obara, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2011-368 |
In the next generation mobile communication systems, high speed data services are demanded. However, unacceptable large ... [more] | RCS2011-368 pp.311-316 |
| SR | 2012-01-26 14:30 |
Kagoshima | Kagoshima | Hybrid Single-Carrier and Multi-Carrier System: Evaluation of Throughput with Inter-Cell Interference Yuji Miyake, Kazumasa Kobayashi, Kazuhiro Komatsu (Tohoku Univ.), Hiroshi Oguma (Toyama National College of Technology), Noboru Izuka (SoftBank Telecom Corp./Tohoku Univ.), Suguru Kameda, Noriharu Suematsu, Tadashi Takagi, Kazuo Tsubouchi (Tohoku Univ.) SR2011-81 |
We have investigated hybrid single-carrier (SC) and multi-carrier (MC) system. MC transmission is effective for high d... [more] |
SR2011-81 pp.23-28 |
| NS, RCS (Joint) |
2011-12-16 10:00 |
Yamaguchi | Yamaguchi University | Spectrum Efficiency of MIMO Spatial Multiplexing in a Multi-cell Distributed Antenna Network Shinya Kumagai, Ryusuke Matsukawa, Tatsunori Obara, Tetsuya Yamamoto, Fumiyuki Adachi (Tohoku Univ.) RCS2011-251 |
Multiple-input multiple-output (MIMO) spatial multiplexing can increase the transmission rate without bandwidth expansio... [more] | RCS2011-251 pp.111-116 |
| RCS | 2007-06-29 15:25 |
Aichi | Toyohashi Uni. of Tech. | Spectrum efficiency of MIMO multiplexing in a cellular environment Koichi Adachi (Keio Univ.), Fumiyuki Adachi (Tohoku Univ.), Masao Nakagawa (Keio Univ.) RCS2007-27 |
To increase the transmission rate without bandwidth expansion, multiple-input multiple-output (MIMO) technique has been ... [more] | RCS2007-27 pp.97-102 |
| RCS, MoNA, WBS, SR, MW (Joint) |
2007-03-07 13:20 |
Kanagawa | YRP | Downlink Performance Comparison between MC-CDMA and OFDMA Considering Sector Antennas Shunsuke Kondo (Keio Univ.), Takashi Shono (Intel), Masao Nakagawa (Keio Univ.) |
We have evaluated and compared between downlink MC-CDMA and OFDMA system that are two candidates of the next generation ... [more] | WBS2006-50 pp.37-42 |
| WBS | 2006-12-14 15:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Performance Comparison between MC-CDMA and OFDMA with Fractional Frequency Reuse in Downlink Shunsuke Kondo (Keio Univ.), Takashi Shono (Intel), Masao Nakagawa (Keio Univ.) |
Both OFDMA and MC-CDMA systems are two candidate of the downlink of the next generation mobile communication systems. Th... [more] | WBS2006-41 pp.35-40 |
| WBS | 2006-10-26 14:20 |
Miyagi | Akiu Resort Hotel Crescent (Sendai) | Downlink Performance Comparison of OFDMA with MC-CDMA for Multi-Cell Environment Shunsuke Kondo (Keio Univ.), Takashi Shono (Intel), Masao Nakagawa (Keio Univ.) |
We evaluate and compare the performances of Multi-Carrier - Code Division Multiple Access (MC-CDMA) and Orthogonal Frequ... [more] | WBS2006-26 pp.13-18 |
| SR | 2005-11-25 15:05 |
Okinawa | Okinawa Wemen's Center | A Study on Multi cells and Multi users MIMO Transmissionwith Whitening Filters at both Base and Mobile Stations Manabu Mikami, Teruya Fujii (Japan Telecom) |
MIMO (Multiple-Input Multiple-Output) transmission technologies which can increase the system capacity within the same f... [more] | SR2005-62 pp.103-110 |
| CQ, RCS (Joint) |
2005-04-22 16:00 |
Kyoto | ATR | Comparison of Throughput Performance between OFDM and DS-CDMA Radio Access in Downlink Broadband Channel for Multi-cell Environments Teruo Kawamura, Yoshihisa Kishiyama, Yoshikazu Goto, Hiroyuki Atarashi, Mamoru Sawahashi (NTT DoCoMo) |
This paper compares throughput performance between OFDM and DS-CDMA radio access in downlink broadband channel focusing ... [more] | RCS2005-14 pp.43-48 |
| RCS | 2004-06-18 15:00 |
Miyagi | Tohoku University | Investigations on Packet Error Rate of Variable Spreading and Chip Repetition Factors (VSCRF)-CDMA Wireless Access in Reverse Link Multi-cell Environment Yoshikazu Goto, Teruo Kawamura, Hiroyuki Atarashi, Mamoru Sawahashi (NTT DoCoMo) |
This paper investigates the packet error rate (PER) performance of Variable Spreading and Chip Repetition Factors (VSCRF... [more] | RCS2004-84 pp.49-54 |
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