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Paper Abstract and Keywords
Presentation 2015-05-28 13:00
Statistical Information-aided Transition Detection Method using Weighted Cooperative Sensing
Hao Wang, Takeo Fujii (UEC) SR2015-1
Abstract (in Japanese) (See Japanese page) 
(in English) In order to improve spectrum utilization efficiency of Cognitive Radio (CR) systems, it is important for Secondary User (SU) to get knowledge about Primary User(PU)’s behavior when SU exploits opportunity to access spectrum. Radio Environment Database has recently been proposed to provide information about PU. Traditional advanced spectrum database constructed based on spectrum sensing method assumes that the transmit status of PU is always ON for updating the database information. However, it is not appropriate for recognizing in realistic environment because most of wireless systems does not always send the signal. In this paper, we propose a transition detection method using weighted cooperative sensing to construct a spectrum database for storing the power of PU obtained from sensor nodes. In the proposed method, the database gathers the information from sensor nodes and provides the previously stored information to generate the weight coefficient at the spectrum shared SUs. Then, we use a weighted cooperative sensing method to make a transition detection of PU behavior. Simulation results show that the proposed method can achieve a higher transition detection precision and the difference between the estimated transition point and the real transition point is smaller than the individual sensing.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive Radio / Radio Environment Database / Spectrum Sensing / Energy Detection / Transition point Detection / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 62, SR2015-1, pp. 1-6, May 2015.
Paper # SR2015-1 
Date of Issue 2015-05-21 (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 SR2015-1

Conference Information
Committee SR  
Conference Date 2015-05-28 - 2015-05-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Akashi-Sangyou-Koryu-Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive radio, Efficient spectrum utilization, Software defined radio, etc. 
Paper Information
Registration To SR 
Conference Code 2015-05-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Statistical Information-aided Transition Detection Method using Weighted Cooperative Sensing 
Sub Title (in English)  
Keyword(1) Cognitive Radio  
Keyword(2) Radio Environment Database  
Keyword(3) Spectrum Sensing  
Keyword(4) Energy Detection  
Keyword(5) Transition point Detection  
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1st Author's Name Hao Wang  
1st Author's Affiliation University of Electro-Communications (UEC)
2nd Author's Name Takeo Fujii  
2nd Author's Affiliation University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2015-05-28 13:00:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2015-1 
Volume (vol) vol.115 
Number (no) no.62 
Page pp.1-6 
#Pages 6 
Date of Issue 2015-05-21 (SR) 

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