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Paper Abstract and Keywords
Presentation 2014-05-23 14:10
Delayed Correlation Based Signal Detection Scheme with Filter Bank for OFDM Signal
Hiroyuki Odani, Shoya Uchida, Ryo Takai, Yukitoshi Sanada (Keio Univ.) SR2014-17
Abstract (in Japanese) (See Japanese page) 
(in English) Delayed correlation has been used as a signal detection scheme for an orthogonal frequency devision multiplexing symbol with a cyclic prefix in spectrum sensing.
Because of a frequency offset, the outputs of the delayed correlation do not lay only on a real axis of a complex plane.
Therefore, the absolute value of the outputs of the delayed correlation is employed.
Furthermore, with the use of a filter bank, the number of the outputs of the delayed correlators increases and the averaging over the outputs decreases noise variance.
This report proposes a new delayed correlation based signal detection scheme using the filter bank and taking the absolute value of the outputs of delayed correlation.
Numerical results obtained through computer simulation show that the proposed scheme improves the probability of detection as the number of the branches of the delayed correlators increases.
In the case of 6 branches the proposed scheme reduces the required sample energy by 1dB for the probability of detection of 0.9.
Keyword (in Japanese) (See Japanese page) 
(in English) Spectrum Sensing / Delayed correlation / / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 44, SR2014-17, pp. 111-117, May 2014.
Paper # SR2014-17 
Date of Issue 2014-05-15 (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)
Download PDF SR2014-17

Conference Information
Committee SR  
Conference Date 2014-05-22 - 2014-05-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Toshiba Education & Training Institute 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Technical Exhibition, Product Exhibition, Cognitive Radio, Software Defined Radio, Heterogeneous Network, etc. 
Paper Information
Registration To SR 
Conference Code 2014-05-SR 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Delayed Correlation Based Signal Detection Scheme with Filter Bank for OFDM Signal 
Sub Title (in English)  
Keyword(1) Spectrum Sensing  
Keyword(2) Delayed correlation  
1st Author's Name Hiroyuki Odani  
1st Author's Affiliation Keio University (Keio Univ.)
2nd Author's Name Shoya Uchida  
2nd Author's Affiliation Keio University (Keio Univ.)
3rd Author's Name Ryo Takai  
3rd Author's Affiliation Keio University (Keio Univ.)
4th Author's Name Yukitoshi Sanada  
4th Author's Affiliation Keio University (Keio Univ.)
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Date Time 2014-05-23 14:10:00 
Presentation Time 25 
Registration for SR 
Paper # IEICE-SR2014-17 
Volume (vol) IEICE-114 
Number (no) no.44 
Page pp.111-117 
#Pages IEICE-7 
Date of Issue IEICE-SR-2014-05-15 

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