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Paper Abstract and Keywords
Presentation 2011-03-02 16:10
A Study on Improvement of Low-Complexity Cyclostaionary Feauture Detection Method for Compensating Cyclostationarity-degradation
Hiroyoshi Yano (Keio Univ.), Osamu Takyu (Tokyo Univ. of Science), Takeo Fujii (Univ. of Electro-Comm.), Tomoaki Ohtsuki (Keio Univ.) SR2010-97
Abstract (in Japanese) (See Japanese page) 
(in English) In autonomous decentralized cognitive radio system, we have studied a high accuracy and low complexity cyclo- stationarity feature detection method for compensating cyclostationarity-degradation. In previous method, we added stop period equal to GI length and avoided the increase of timing mismatch between detected symbol and detection window. Moreover, in order to avoid cyclostationarity-degradation by synchronization of timing shift, we proposed multi-tap delay line filter whose unit delay is equal to GI length. However, this filter does not use energy of stop period. Therefore, compensating the unused energy of stop period, we improve the detection probability of the weak signals. Also, in multipath environment, the previous proposed method cannot detect first path, and thus ISI occurs and cyclostationarity degrades. Therefore, we made two-step multi-tap delay line filter, which has conventional multi-tap delay line and also has one with the high temporal resolution. Computer simulation show the effectiveness of the proposed detection method compared to the conventional one.
Keyword (in Japanese) (See Japanese page) 
(in English) Cognitive Radio / Two-step Sensing / Cyclostationarity / Guard Interval / Synthesis / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 435, SR2010-97, pp. 63-68, March 2011.
Paper # SR2010-97 
Date of Issue 2011-02-23 (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 SR2010-97

Conference Information
Committee RCS MoNA SR  
Conference Date 2011-03-02 - 2011-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) YRP 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2011-03-RCS-MoMuC-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Study on Improvement of Low-Complexity Cyclostaionary Feauture Detection Method for Compensating Cyclostationarity-degradation 
Sub Title (in English)  
Keyword(1) Cognitive Radio  
Keyword(2) Two-step Sensing  
Keyword(3) Cyclostationarity  
Keyword(4) Guard Interval  
Keyword(5) Synthesis  
Keyword(6)  
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1st Author's Name Hiroyoshi Yano  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Osamu Takyu  
2nd Author's Affiliation Tokyo University of Science (Tokyo Univ. of Science)
3rd Author's Name Takeo Fujii  
3rd Author's Affiliation University of Electro-Communications (Univ. of Electro-Comm.)
4th Author's Name Tomoaki Ohtsuki  
4th Author's Affiliation Keio University (Keio Univ.)
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Speaker Author-1 
Date Time 2011-03-02 16:10:00 
Presentation Time 20 minutes 
Registration for SR 
Paper # SR2010-97 
Volume (vol) vol.110 
Number (no) no.435 
Page pp.63-68 
#Pages 6 
Date of Issue 2011-02-23 (SR) 

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