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Paper Abstract and Keywords
Presentation 2012-10-19 09:25
An Efficient Resource Allocation for Cognitive Multi-hop Networks by Considering Traffic Cross
Shuta Kako (UEC), Osamu Takyu (Shinshu Univ.), Takeo Fujii (UEC) SR2012-68
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we have proposed secondary user (SU) resource assignment algorithm for a multi-hop cognitive radio network to improve end-to-end latency. In the multi-hop networks for spectrum sharing, a traffic-cross, in which multiple flows are crossed each other, degrades the throughput due to appearing high traffic and shortage resource area. However each SU has to protect the flow of primary users (PU). To overcome this problem, we have set the PU acceptable received power which is decided by the acknowledgment (ACK) power from PU receiver to each SU user. From this information, we analyzed the performance of the proposed algorithm to minimize the end-to-end delay of SU multi-hop flow considering PU acceptable interference power by optimizing SU transmit power. Here Lagrangian duality based technique has been utilized to solve the optimization problem and effective allocate the power for each SU users.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive Radio / Multi-hop Network / Lagrangian duality optimization / Resource Allocation / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 240, SR2012-68, pp. 189-194, Oct. 2012.
Paper # SR2012-68 
Date of Issue 2012-10-10 (SR) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SR AN USN RCS  
Conference Date 2012-10-17 - 2012-10-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukuoka univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) wireless distributed network, general topics 
Paper Information
Registration To SR 
Conference Code 2012-10-SR-AN-USN-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An Efficient Resource Allocation for Cognitive Multi-hop Networks by Considering Traffic Cross 
Sub Title (in English)  
Keyword(1) Cognitive Radio  
Keyword(2) Multi-hop Network  
Keyword(3) Lagrangian duality optimization  
Keyword(4) Resource Allocation  
1st Author's Name Shuta Kako  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Osamu Takyu  
2nd Author's Affiliation Shinshu University (Shinshu Univ.)
3rd Author's Name Takeo Fujii  
3rd Author's Affiliation The University of Electro-Communications (UEC)
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Date Time 2012-10-19 09:25:00 
Presentation Time 25 
Registration for SR 
Paper # IEICE-SR2012-68 
Volume (vol) IEICE-112 
Number (no) no.240 
Page pp.189-194 
#Pages IEICE-6 
Date of Issue IEICE-SR-2012-10-10 

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