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Paper Abstract and Keywords
Presentation 2009-05-29 10:55
Evaluation and Performance Improvement of a Cooperative Sensing System with Losses of Information from Sensing Nodes
Makoto Takanashi, Takaya Yamazato, Masaaki Katayama (Nagoya Univ.) SR2009-12
Abstract (in Japanese) (See Japanese page) 
(in English) At a location and time, there may be frequencies not in use by their licensed (primary) users. Spectrum sharing, in which a secondary radio system uses such white spaces of frequency, is one of advantageous means to mitigate the spectrum scarcity. In order to realize the spectrum sharing, spectrum sensing that detects the presence of a primary user signal is a key technology. For reliable sensing of the primary signal, cooperative sensing where information from multiple sensing nodes is incorporated at a fusion center is currently being investigated by many researchers. Majority of these works consider the imperfectness of the channels between a primary transmitter and sensor nodes under noise and fading environments. On the contrary, this manuscript deals with the transmission between sensor nodes to a fusion center. For a cooperative spectrum sensing system, in which the analog outputs of energy detectors at sensor nodes are transmitted to a fusion center, the influence of losses of information from the nodes on detection performance is derived analytically. In addition, it is shown that the adaptive processing with the consideration of information loss at the fusion center improves system performance.
Keyword (in Japanese) (See Japanese page) 
(in English) Spectrum Sharing / Spectrum Sensing / Cooperative Sensing / Node Failure / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 61, SR2009-12, pp. 75-79, May 2009.
Paper # SR2009-12 
Date of Issue 2009-05-21 (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 SR2009-12

Conference Information
Committee SR  
Conference Date 2009-05-28 - 2009-05-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata Univ 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive/Software radio and international workshop 
Paper Information
Registration To SR 
Conference Code 2009-05-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation and Performance Improvement of a Cooperative Sensing System with Losses of Information from Sensing Nodes 
Sub Title (in English)  
Keyword(1) Spectrum Sharing  
Keyword(2) Spectrum Sensing  
Keyword(3) Cooperative Sensing  
Keyword(4) Node Failure  
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Keyword(6)  
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1st Author's Name Makoto Takanashi  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Takaya Yamazato  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
3rd Author's Name Masaaki Katayama  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-3 
Date Time 2009-05-29 10:55:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2009-12 
Volume (vol) vol.109 
Number (no) no.61 
Page pp.75-79 
#Pages 5 
Date of Issue 2009-05-21 (SR) 

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