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Paper Abstract and Keywords
Presentation 2007-06-28 14:25
Study of interference reduction by cooperative sensing for multiple systems with shared band
Youngjin Yu, Hidekazu Murata, Koji Yamamoto, Susumu Yoshida (Kyoto Univ.) RCS2007-12
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, the secondary transmitter tries to communicate with the secondary stations without interfering the primary system. Reliable detection of the primary system is crucial for this system. It is assumed that the secondary system cannot communicate with the primary system. There is an uncertainty in the received power level due to shadowing. The cooperative sensing where the stations share their sensing information among the secondary system can improve the detection accuracy. This paper investigates the secondary system whose transmitter receives sensing information by using multi-hop transmission from all secondary sensing stations which detect the primary system, and make decision of transmission based on the received sensing information. Moreover, it controls the transmit power by carrier to interference plus noise ratio (CINR) information from the secondary sensing stations. Simulation results assuming spatially independent shadowing and ideal multi-hop transmission in the secondary system reveal that the proposed system is helpful to protect the primary receivers which have no transmission ability.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive Radio / Multihop network / Interference Information / Cooperative sensing / Interference reduction / Frequency band sharing / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 113, RCS2007-12, pp. 7-12, June 2007.
Paper # RCS2007-12 
Date of Issue 2007-06-21 (RCS) 
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 RCS2007-12

Conference Information
Committee RCS  
Conference Date 2007-06-28 - 2007-06-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Toyohashi Uni. of Tech. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To RCS 
Conference Code 2007-06-RCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study of interference reduction by cooperative sensing for multiple systems with shared band 
Sub Title (in English)  
Keyword(1) Cognitive Radio  
Keyword(2) Multihop network  
Keyword(3) Interference Information  
Keyword(4) Cooperative sensing  
Keyword(5) Interference reduction  
Keyword(6) Frequency band sharing  
Keyword(7)  
Keyword(8)  
1st Author's Name Youngjin Yu  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Hidekazu Murata  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Koji Yamamoto  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Susumu Yoshida  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2007-06-28 14:25:00 
Presentation Time 25 minutes 
Registration for RCS 
Paper # RCS2007-12 
Volume (vol) vol.107 
Number (no) no.113 
Page pp.7-12 
#Pages 6 
Date of Issue 2007-06-21 (RCS) 

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