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Paper Abstract and Keywords
Presentation 2011-03-04 10:30
Virtual Layered Space-Frequency Receivers for Multiuser MIMO-OFDM systems
Akihito Taya, Satoshi Denno, Daisuke Umehara, Masahiro Morikura, Hidekazu Murata, Koji Yamamoto, Susumu Yoshida (Kyoto Univ.) RCS2010-302
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose ordered successive receivers with ``virtual channels'' aiming for multiuser multiple-input multiple-output (MU-MIMO) systems under which multiple base stations are cooperating with each other.
The proposed method enables high speed transmission without increasing amount of the feedback of channel state information (CSI). Moreover, with the idea called ``virtual channel'', the receivers can detect signals even if the number of the receiving antennas is less than that of the transmitted streams. We also show that bit error rate (BER) can be reduced by feeding back some elements of signals from Viterbi decoder to virtual channel detector. We evaluate the performance in the MIMO systems
where base stations have four antennas each and two users have two antennas. The receivers can detect twice as many streams with the cost of $3\ {\rm dB}$ in $E_{\rm b}/N_0$ and three times as many streams with the cost of $7\ {\rm dB}$ in $E_{\rm b}/N_0$ as conventional receivers at ${\rm BER}=10^{-4}$.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO / MU-MIMO / OFDM / Virtual Channel / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 433, RCS2010-302, pp. 313-318, March 2011.
Paper # RCS2010-302 
Date of Issue 2011-02-23 (RCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Download PDF RCS2010-302

Conference Information
Committee RCS MoNA SR  
Conference Date 2011-03-02 - 2011-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To RCS 
Conference Code 2011-03-RCS-MoMuC-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Virtual Layered Space-Frequency Receivers for Multiuser MIMO-OFDM systems 
Sub Title (in English)  
Keyword(1) MIMO  
Keyword(2) MU-MIMO  
Keyword(3) OFDM  
Keyword(4) Virtual Channel  
1st Author's Name Akihito Taya  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Satoshi Denno  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Daisuke Umehara  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Masahiro Morikura  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
5th Author's Name Hidekazu Murata  
5th Author's Affiliation Kyoto University (Kyoto Univ.)
6th Author's Name Koji Yamamoto  
6th Author's Affiliation Kyoto University (Kyoto Univ.)
7th Author's Name Susumu Yoshida  
7th Author's Affiliation Kyoto University (Kyoto Univ.)
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Date Time 2011-03-04 10:30:00 
Presentation Time 20 
Registration for RCS 
Paper # IEICE-RCS2010-302 
Volume (vol) IEICE-110 
Number (no) no.433 
Page pp.313-318 
#Pages IEICE-6 
Date of Issue IEICE-RCS-2011-02-23 

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