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Paper Abstract and Keywords
Presentation 2010-11-12 09:00
Theoretical Analysis of BER Performance of Optical Orthogonal Codes with Multiple Chip Rates
Hiromi Yamamoto, Tetsuo Tsujioka (Osaka City Univ.) CS2010-45
Abstract (in Japanese) (See Japanese page) 
(in English) This paper considers a theoretical analysis of optical orthogonal codes(OOCs) with multiple chip rates. In the previous studies on OOCs, the assumption of design with a common chip rate is required at all users in a network, then they must have fast optical transmitters and receivers which can detect short pulses even at some low-end users. To solve this problem, we proposed OOCs with multiple chip rates. This code satisfies the orthogonal property of the OOCs in spite of different chip rates. This paper shows the theoretical upper bound of bit error rate based on observation from a multinomial distribution where chip synchronization is assumed. In addition, we show the exact bit error rate analysis calculated strictly by probability density of received optical interferences pass through a chip gate after correlator at an expected user’s receiver in asynchronous consideration. Finally, the computer simulation results confirm the validity of the theoretical analysis by comparison.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical orthogonal code / variable code length / variable weight / multiple chip rate / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 269, CS2010-45, pp. 49-54, Nov. 2010.
Paper # CS2010-45 
Date of Issue 2010-11-04 (CS) 
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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF CS2010-45

Conference Information
Committee CS  
Conference Date 2010-11-11 - 2010-11-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Wakura Hot Spring 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Broadband access systems, home networks, network services, applications for communications, etc. 
Paper Information
Registration To CS 
Conference Code 2010-11-CS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Theoretical Analysis of BER Performance of Optical Orthogonal Codes with Multiple Chip Rates 
Sub Title (in English)  
Keyword(1) Optical orthogonal code  
Keyword(2) variable code length  
Keyword(3) variable weight  
Keyword(4) multiple chip rate  
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1st Author's Name Hiromi Yamamoto  
1st Author's Affiliation Osaka City University (Osaka City Univ.)
2nd Author's Name Tetsuo Tsujioka  
2nd Author's Affiliation Osaka City University (Osaka City Univ.)
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Speaker Author-1 
Date Time 2010-11-12 09:00:00 
Presentation Time 20 minutes 
Registration for CS 
Paper # CS2010-45 
Volume (vol) vol.110 
Number (no) no.269 
Page pp.49-54 
#Pages 6 
Date of Issue 2010-11-04 (CS) 

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