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Paper Abstract and Keywords
Presentation 2007-12-18 15:35
Study of multi-antenna relaying system for cellular networks
Ryosuke Osawa, Hidekazu Murata, Koji Yamamoto, Susumu Yoshida (Kyoto Univ.), Takahiro Asai, Tomoyuki Ohya (NTT DoCoMo) WBS2007-55
Abstract (in Japanese) (See Japanese page) 
(in English) The use of multiple antennas at both ends of wireless link, called MIMO technology, promises significant improvements in terms of spectral efficiency and link reliability. A number of studies have been conducted on point-to-point MIMO channels in the last decade. More recently, applying MIMO techniques to relay networks has also come into consideration.However so far most research on multiple antenna relay channels is aimed at obtaining information-theoretic limits for different protocols exploiting relay cooperative diversity in the network.In this paper the bit error rate (BER) performance of practical MIMO regenerative single relay schemes for a cellular downlink is discussed.A relay station (RS) would be mounted in line of sight (LOS) from a base station (BS) in order to relay a packet to a distant mobile station (MS).To cope with capacity reduction of MIMO spatial multiplexing (SM) in such environments, maximum ratio transmission (MRT) is considered in BS to RS link.The performance comparisons between the MRT-SM relaying scheme and the SM-SM relaying scheme employing specific modulations are made by computer simulations.
Keyword (in Japanese) (See Japanese page) 
(in English) MIMO Spatial Multiplexing / Maximum Ratio Transmission (MRT) / Regenerative Relaying / Cellular Network / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 395, WBS2007-55, pp. 47-52, Dec. 2007.
Paper # WBS2007-55 
Date of Issue 2007-12-11 (WBS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee WBS  
Conference Date 2007-12-18 - 2007-12-19 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WBS 
Conference Code 2007-12-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of multi-antenna relaying system for cellular networks 
Sub Title (in English)  
Keyword(1) MIMO Spatial Multiplexing  
Keyword(2) Maximum Ratio Transmission (MRT)  
Keyword(3) Regenerative Relaying  
Keyword(4) Cellular Network  
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1st Author's Name Ryosuke Osawa  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Hidekazu Murata  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Koji Yamamoto  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Susumu Yoshida  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
5th Author's Name Takahiro Asai  
5th Author's Affiliation NTT DoCoMo (NTT DoCoMo)
6th Author's Name Tomoyuki Ohya  
6th Author's Affiliation NTT DoCoMo (NTT DoCoMo)
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Speaker Author-1 
Date Time 2007-12-18 15:35:00 
Presentation Time 25 minutes 
Registration for WBS 
Paper # WBS2007-55 
Volume (vol) vol.107 
Number (no) no.395 
Page pp.47-52 
#Pages 6 
Date of Issue 2007-12-11 (WBS) 

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