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Paper Abstract and Keywords
Presentation 2009-01-23 15:20
A Study on the Weighted Cooperative Sensing Method based on Estimated Received Signal Power in Fading Environment
Hironori Tsuchiya, Kenta Umebayashi, Yukihiro Kamiya, Yasuo Suzuki (Tokyo University of Agriculture and Technology) SR2008-84
Abstract (in Japanese) (See Japanese page) 
(in English) This report presents a sensing technique for the spectrum sharing system by a existing system, called
primary system, and a new wireless radio system which equips the cognitive radio techniques and called secondary
system. We focus on the cooperative sensing technique where observations by secondary users are fused to achieve
accurate detection performance. It has been known that a usage of weight based on received signal power can
improve the sensing performance. However, it is difficult to estimate the received signal power in such a low SNR
environment. In this report, we tackle this problem. First, received signal power estimation accuracy is deteriorated
by detection failure. In addition, we assume a fading environment which makes the estimation difficult. Multiple
antenna elements technique is employed and we have evaluated the weighted cooperative sensing with the multiple
antenna elements and shown that a suitable performance can be achieved in low SNR and fading environment.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive radio / Spectrum sensing / Cooperative sensing / Fading Environment / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 400, SR2008-84, pp. 97-102, Jan. 2009.
Paper # SR2008-84 
Date of Issue 2009-01-15 (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 SR2008-84

Conference Information
Committee SR  
Conference Date 2009-01-22 - 2009-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive radio, invited talk, and general session 
Paper Information
Registration To SR 
Conference Code 2009-01-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on the Weighted Cooperative Sensing Method based on Estimated Received Signal Power in Fading Environment 
Sub Title (in English)  
Keyword(1) Cognitive radio  
Keyword(2) Spectrum sensing  
Keyword(3) Cooperative sensing  
Keyword(4) Fading Environment  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Hironori Tsuchiya  
1st Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo University of Agriculture and Technology)
2nd Author's Name Kenta Umebayashi  
2nd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo University of Agriculture and Technology)
3rd Author's Name Yukihiro Kamiya  
3rd Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo University of Agriculture and Technology)
4th Author's Name Yasuo Suzuki  
4th Author's Affiliation Tokyo University of Agriculture and Technology (Tokyo University of Agriculture and Technology)
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Speaker Author-1 
Date Time 2009-01-23 15:20:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2008-84 
Volume (vol) vol.108 
Number (no) no.400 
Page pp.97-102 
#Pages 6 
Date of Issue 2009-01-15 (SR) 

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