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Paper Abstract and Keywords
Presentation 2007-11-27 09:25
Performance of frequency sharing system with transmit power control utilizing cooperative sensing in spatially correlated shadowing environment
Takuto Ohno, Yu Younjin, Hidekazu Murata, Koji Yamamoto, Susumu Yoshida (Kyoto Univ.) SR2007-49
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, a frequency sharing system as a form of cognitive radio is investigated.Reliable detection of other radio systems is crucial for this system in order not to interfere with other systems excessively.In wireless communication channels, there is uncertainty in the received signal level due to multipath fading and shadowing. Cooperative sensing techniques in which radio stations share their sensing information can improve the detection probability of other systems.
However, sensing information reported by several sensing stations may increase the false detection probability. A combination of cooperative sensing and transmit power control based on sensing information collected by using multi-hop transmission from all sensing station can reduce the false detection probability while maintaining the outage probability of other systems. In this paper, the performance of this system is evaluated in spatially correlated shadowing and Rayleigh fading environment.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive Radio / Multi-hop Networks / Cooperative Sensing / Interference Information / Interference Reduction / Frequency Band Sharing / Spatially Correlated Shadowing /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 352, SR2007-49, pp. 21-26, Nov. 2007.
Paper # SR2007-49 
Date of Issue 2007-11-19 (SR) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 2007-11-26 - 2007-11-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Hirishima international univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Cognitive radio session. panel session and general session 
Paper Information
Registration To SR 
Conference Code 2007-11-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance of frequency sharing system with transmit power control utilizing cooperative sensing in spatially correlated shadowing environment 
Sub Title (in English)  
Keyword(1) Cognitive Radio  
Keyword(2) Multi-hop Networks  
Keyword(3) Cooperative Sensing  
Keyword(4) Interference Information  
Keyword(5) Interference Reduction  
Keyword(6) Frequency Band Sharing  
Keyword(7) Spatially Correlated Shadowing  
1st Author's Name Takuto Ohno  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Yu Younjin  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Hidekazu Murata  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
4th Author's Name Koji Yamamoto  
4th Author's Affiliation Kyoto University (Kyoto Univ.)
5th Author's Name Susumu Yoshida  
5th Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2007-11-27 09:25:00 
Presentation Time 25 minutes 
Registration for SR 
Paper # SR2007-49 
Volume (vol) vol.107 
Number (no) no.352 
Page pp.21-26 
Date of Issue 2007-11-19 (SR) 

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