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Paper Abstract and Keywords
Presentation 2008-03-07 15:20
Multi-hop Cooperative Networks and Cognitive Radio
Hidekazu Murata, Koji Yamamoto, Susumu Yoshida (Kyoto Univ.) SR2007-102
Abstract (in Japanese) (See Japanese page) 
(in English) Multi-hop relaying can extend communication range using limited transmit power, and improve the area spectral efficiency. However, it brings considerable degradation of end-to-end error rate performance due to error propagation along the hops. Cooperative relaying, in which multiple stations relay the received signal using transmit diversity techniques, can recover the errors unless all the relay stations do not receive the signal correctly, and improve the end-to-end transmission performance. In this paper, the FER performance of multi-hop cooperative networks is analyzed by using state transition. Theoretical analysis reveals that the FER performance can be kept almost constant, or even improved with increasing the number of the hops. The computer simulation results closely agree with the analysis. And also, it is revealed that this multi-hop cooperative networks is suitable for spectrum sharing because of its good transmission performance and low transmission power.
Keyword (in Japanese) (See Japanese page) 
(in English) cognitive radio / spectrum sharing / multihop wireless networks / ad-hoc networks / cooperative relaying / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 519, SR2007-102, pp. 117-122, March 2008.
Paper # SR2007-102 
Date of Issue 2008-02-28 (SR) 
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 SR2007-102

Conference Information
Committee RCS AN MoNA SR WBS  
Conference Date 2008-03-05 - 2008-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SR 
Conference Code 2008-03-RCS-AN-MoMuC-SR-WBS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Multi-hop Cooperative Networks and Cognitive Radio 
Sub Title (in English)  
Keyword(1) cognitive radio  
Keyword(2) spectrum sharing  
Keyword(3) multihop wireless networks  
Keyword(4) ad-hoc networks  
Keyword(5) cooperative relaying  
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1st Author's Name Hidekazu Murata  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Koji Yamamoto  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Susumu Yoshida  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2008-03-07 15:20:00 
Presentation Time 20 minutes 
Registration for SR 
Paper # SR2007-102 
Volume (vol) vol.107 
Number (no) no.519 
Page pp.117-122 
#Pages 6 
Date of Issue 2008-02-28 (SR) 

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