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Paper Abstract and Keywords
Presentation 2009-03-10 11:15
A Study on Joint Optimization of Power Allocation and Subcarrier Mapping Method for Dual-hop Non-regenerative OFDM Relay Systems
Masato Saito (Nara Inst. of Sci and Tech.), Chandara Athaudage, Jamie Evans (Univ. of Melbourne) IT2008-119 ISEC2008-177 WBS2008-132
Abstract (in Japanese) (See Japanese page) 
(in English) In this study, an achievable rate of dual-hop non-regenerative OFDM (Orthogonal Frequency Division Multiplexing) relay systems with subcarrier mapping and power allocation to both source and relay nodes is evaluated.
We prove the optimality of rank ordered subcarrier mapping according to the product of channel gain and allocated power and evaluate the improvement of achievable rate by the mapping function for several power allocation methods.
We numerically confirm that the combined method of rank ordered subcarrier mapping based on channel gain and sub-optimal power allocation which satisfies KKT (Karush-Kuhn-Tucker) conditions is very close to the jointly optimized method.
Keyword (in Japanese) (See Japanese page) 
(in English) OFDM / Non-regenerative relay / Optimal power allocation / Optimal power allocation / Water-filling theorem / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 474, WBS2008-132, pp. 493-499, March 2009.
Paper # WBS2008-132 
Date of Issue 2009-03-02 (IT, ISEC, 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)
Download PDF IT2008-119 ISEC2008-177 WBS2008-132

Conference Information
Committee WBS IT ISEC  
Conference Date 2009-03-09 - 2009-03-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Hakodate Mirai Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WBS 
Conference Code 2009-03-WBS-IT-ISEC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Joint Optimization of Power Allocation and Subcarrier Mapping Method for Dual-hop Non-regenerative OFDM Relay Systems 
Sub Title (in English)  
Keyword(1) OFDM  
Keyword(2) Non-regenerative relay  
Keyword(3) Optimal power allocation  
Keyword(4) Optimal power allocation  
Keyword(5) Water-filling theorem  
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1st Author's Name Masato Saito  
1st Author's Affiliation Nara Institute of Science and Technology (Nara Inst. of Sci and Tech.)
2nd Author's Name Chandara Athaudage  
2nd Author's Affiliation University of Melbourne (Univ. of Melbourne)
3rd Author's Name Jamie Evans  
3rd Author's Affiliation University of Melbourne (Univ. of Melbourne)
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Speaker Author-1 
Date Time 2009-03-10 11:15:00 
Presentation Time 25 minutes 
Registration for WBS 
Paper # IT2008-119, ISEC2008-177, WBS2008-132 
Volume (vol) vol.108 
Number (no) no.472(IT), no.473(ISEC), no.474(WBS) 
Page pp.493-499 
#Pages
Date of Issue 2009-03-02 (IT, ISEC, WBS) 


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