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Paper Abstract and Keywords
Presentation 2015-03-04 09:25
Performance characteristics of feature detection scheme using Cyclic Prefix (CP) in OFDM and its applications
Kanshiro Kashiki, Tomoki Sada, Kosuke Yamazaki, Shingo Watanabe (KDDI Labs.) SR2014-112
Abstract (in Japanese) (See Japanese page) 
(in English) From the viewpoint of the efficient use of frequency resources in mobile radio service, the authors have been investigating the feature detection scheme using the Cyclic Prefix (CP) which is usually attached in OFDM signal. The detection scheme is basically essential, which is used for the sensing technology in recent advanced system such as the Device-to-Device (D-to-D) and Machine-to-machine (M-to-M) communications. The scheme indicated here is firstly to obtain the conjugate product of the OFDM signal and its delayed signal, then take Fourier transformation of such product, which is called Cyclostationary Autocorrelation Function (CAF) addressing the cyclostationarity nature. In this report, several performance characteristics of the signal in the process of feature detection are firstly described in the analytical expression, which is derived by the stochastic theory and spectral analysis. Since the analysis is not able to cover all characteristic, some issues are supplemented by the software simulation. Some application measures are also addressed such as estimation method of input C/N at the receiver, system discrimination scheme by using different CP length, and timing offset detection method, in the situation that two systems using OFDM signal are operated in the same frequency band. These technologies will contribute to efficient use of limited frequency resources, since new communication system should share them with the existing system.
Keyword (in Japanese) (See Japanese page) 
(in English) signal detection scheme / feature detection / Device-to-Device communication, / Cyclic Prefix / Cyclostationary Autocorrelation Function (CAF) / C/N estimation / system discrimination / timing offset  
Reference Info. IEICE Tech. Rep., vol. 114, no. 491, SR2014-112, pp. 7-14, March 2015.
Paper # SR2014-112 
Date of Issue 2015-02-25 (SR) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
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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 SR2014-112

Conference Information
Committee RCS SR SRW  
Conference Date 2015-03-04 - 2015-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) Tokyo Institute of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Mobile Communication Workshop 
Paper Information
Registration To SR 
Conference Code 2015-03-RCS-SR-SRW 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance characteristics of feature detection scheme using Cyclic Prefix (CP) in OFDM and its applications 
Sub Title (in English)  
Keyword(1) signal detection scheme  
Keyword(2) feature detection  
Keyword(3) Device-to-Device communication,  
Keyword(4) Cyclic Prefix  
Keyword(5) Cyclostationary Autocorrelation Function (CAF)  
Keyword(6) C/N estimation  
Keyword(7) system discrimination  
Keyword(8) timing offset  
1st Author's Name Kanshiro Kashiki  
1st Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs.)
2nd Author's Name Tomoki Sada  
2nd Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs.)
3rd Author's Name Kosuke Yamazaki  
3rd Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs.)
4th Author's Name Shingo Watanabe  
4th Author's Affiliation KDDI R&D Laboratories Inc. (KDDI Labs.)
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Speaker
Date Time 2015-03-04 09:25:00 
Presentation Time 25 
Registration for SR 
Paper # IEICE-SR2014-112 
Volume (vol) IEICE-114 
Number (no) no.491 
Page pp.7-14 
#Pages IEICE-8 
Date of Issue IEICE-SR-2015-02-25 


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