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Paper Abstract and Keywords
Presentation 2010-05-21 10:00
A Study on Detection Method of Low SNR Nodes in Cooperative Spectrum Sensing
Hung Vu Le, Mai Ohta, Kei Inage, Takeo Fujii (Univ. of Electro-Comm.), Kazushi Muraoka, Masayuki Ariyoshi (NEC) SR2010-8
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we have studied the methods of detecting low Signal to Noise Ratio (SNR) nodes by outlier detection in cooperative spectrum sensing. In many studies in the field of cooperative sensing, it is assumed that an average received energy among sensing nodes is equal. However, in practical wireless environment, the performance of cooperative sensing system with low SNR nodes is severely degraded due to influence of multipath fading. The goal of this research is to detect the low SNR nodes and minimizes the impacts caused by these low SNR nodes to the cooperative sensing performance. Therefore, we propose an outlier detection algorithm to exclude low SNR nodes from cooperative sensing nodes by using past accumulated energy data. Several outlier detection
methods are compared, and a suitable algorithm for the low SNR node detection method is selected. In addition, the required length of estimation period for the outlier detection is revealed.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive radio / Cooperative spectrum sensing / Low SNR node / Outlier detection / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 41, SR2010-8, pp. 43-48, May 2010.
Paper # SR2010-8 
Date of Issue 2010-05-13 (SR) 
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)
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Conference Information
Committee SR  
Conference Date 2010-05-20 - 2010-05-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Keio Univ. (Tokyo) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) International Workshop, etc. 
Paper Information
Registration To SR 
Conference Code 2010-05-SR 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Detection Method of Low SNR Nodes in Cooperative Spectrum Sensing 
Sub Title (in English)  
Keyword(1) Cognitive radio  
Keyword(2) Cooperative spectrum sensing  
Keyword(3) Low SNR node  
Keyword(4) Outlier detection  
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1st Author's Name Hung Vu Le  
1st Author's Affiliation The University of Electro-Communications (Univ. of Electro-Comm.)
2nd Author's Name Mai Ohta  
2nd Author's Affiliation The University of Electro-Communications (Univ. of Electro-Comm.)
3rd Author's Name Kei Inage  
3rd Author's Affiliation The University of Electro-Communications (Univ. of Electro-Comm.)
4th Author's Name Takeo Fujii  
4th Author's Affiliation The University of Electro-Communications (Univ. of Electro-Comm.)
5th Author's Name Kazushi Muraoka  
5th Author's Affiliation NEC Corporation (NEC)
6th Author's Name Masayuki Ariyoshi  
6th Author's Affiliation NEC Corporation (NEC)
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Speaker
Date Time 2010-05-21 10:00:00 
Presentation Time 25 
Registration for SR 
Paper # IEICE-SR2010-8 
Volume (vol) IEICE-110 
Number (no) no.41 
Page pp.43-48 
#Pages IEICE-6 
Date of Issue IEICE-SR-2010-05-13 


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