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Paper Abstract and Keywords
Presentation 2012-03-09 13:50
Adaptive Modulation Assignment For Uplink Single Carrier Cooperative DF Relay Using Direct/Cooperative DF Relay Switching
Kazuhiro Kimura, Masayuki Nakada, Tatsunori Obara, Fumiyuki Adachi (Tohoku Univ.) RCS2011-367
Abstract (in Japanese) (See Japanese page) 
(in English) The cooperative relay is a promising technique to increase the cell edge throughput. In our previous paper, we proposed an adaptive modulation assignment method for uplink single carrier (SC) 2-time slot cooperative decode-and-forward (DF) relay and showed that it can achieve the higher throughput than the fixed modulation combination method. However, the achievable throughput of 2-time slot cooperative relay is upper limited to half of the direct communication and thus, sometimes the throughput of the cooperative relay becomes lower than that of the direct communication. To avoid this, recently, we proposed a direct/cooperative relay switching transmission. In this paper, we apply the adaptive modulation method to direct/cooperative relay switching transmission. The transmission method and adaptive selection of modulation combinations are done so as to maximize the throughput. We evaluate, by computer simulation, the uplink throughput performance of SC 2-time slot direct/cooperative DF relay switching using the adaptive modulation assignment.
Keyword (in Japanese) (See Japanese page) 
(in English) cooperative DF relay / direct/cooperative relay switching / single carrier transmission / adaptive modulation assignment / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 451, RCS2011-367, pp. 305-310, March 2012.
Paper # RCS2011-367 
Date of Issue 2012-02-29 (RCS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
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)
Download PDF RCS2011-367

Conference Information
Committee SR RCS SRW  
Conference Date 2012-03-07 - 2012-03-09 
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 2012-03-SR-RCS-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adaptive Modulation Assignment For Uplink Single Carrier Cooperative DF Relay Using Direct/Cooperative DF Relay Switching 
Sub Title (in English)  
Keyword(1) cooperative DF relay  
Keyword(2) direct/cooperative relay switching  
Keyword(3) single carrier transmission  
Keyword(4) adaptive modulation assignment  
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1st Author's Name Kazuhiro Kimura  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Masayuki Nakada  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Tatsunori Obara  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Fumiyuki Adachi  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2012-03-09 13:50:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2011-367 
Volume (vol) vol.111 
Number (no) no.451 
Page pp.305-310 
#Pages 6 
Date of Issue 2012-02-29 (RCS) 

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