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Paper Abstract and Keywords
Presentation 2009-03-10 13:50
Investigation on an effect of Single/Double Optical Hard Limiter in the optical CDMA systems -- Effect of quantum noises on OHL --
Chinatsu Ito (Polytechnic Univ.), Noboru Ochiai (Ibarki Pref. Academy of Industrial Tech.), Takeshi Nagao (Sansou System), Tomoko K. Matsushima, Yasuaki Teramachi (Polytechnic Univ.) IT2008-123 ISEC2008-181 WBS2008-136
Abstract (in Japanese) (See Japanese page) 
(in English) Degradation of bit error rate by multi user interferences(MUI) was considered asa big problem for direct modulation optical CDMA systems because they used unipolar codes as signature codes. Single OHL system and Double OHL system are proposed to reduce these MUIs. But, it is not clear the property of BER where APD noise is taken into account. Also it is not clear how the second OHL reduces BER. Quantum noises are not considered in the OHL yet. These problems are considered here.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical CDMA / Multi User Interference (MUI) / Optical Hard Limiter(OHL) / quantum noise / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 474, WBS2008-136, pp. 519-526, March 2009.
Paper # WBS2008-136 
Date of Issue 2009-03-02 (IT, ISEC, WBS) 
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 IT2008-123 ISEC2008-181 WBS2008-136

Conference Information
Committee WBS IT ISEC  
Conference Date 2009-03-09 - 2009-03-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Hakodate Mirai Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To WBS 
Conference Code 2009-03-WBS-IT-ISEC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigation on an effect of Single/Double Optical Hard Limiter in the optical CDMA systems 
Sub Title (in English) Effect of quantum noises on OHL 
Keyword(1) Optical CDMA  
Keyword(2) Multi User Interference (MUI)  
Keyword(3) Optical Hard Limiter(OHL)  
Keyword(4) quantum noise  
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1st Author's Name Chinatsu Ito  
1st Author's Affiliation Polytechnic University (Polytechnic Univ.)
2nd Author's Name Noboru Ochiai  
2nd Author's Affiliation Ibaraki Prefectual Academy of Industrial Technology (Ibarki Pref. Academy of Industrial Tech.)
3rd Author's Name Takeshi Nagao  
3rd Author's Affiliation Sansou System (Sansou System)
4th Author's Name Tomoko K. Matsushima  
4th Author's Affiliation Polytechnic University (Polytechnic Univ.)
5th Author's Name Yasuaki Teramachi  
5th Author's Affiliation Polytechnic University (Polytechnic Univ.)
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Speaker Author-1 
Date Time 2009-03-10 13:50:00 
Presentation Time 25 minutes 
Registration for WBS 
Paper # IT2008-123, ISEC2008-181, WBS2008-136 
Volume (vol) vol.108 
Number (no) no.472(IT), no.473(ISEC), no.474(WBS) 
Page pp.519-526 
#Pages 8 
Date of Issue 2009-03-02 (IT, ISEC, WBS) 

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