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Paper Abstract and Keywords
Presentation 2009-01-22 14:30
[Encouragement Talk] Set-up and Management Schemes of Optical Paths in All-Optical Networks
Rie Hayashi, Kaori Shimizu, Ichiro Inoue, Kohei Shiomoto (NTT) NS2008-125
Abstract (in Japanese) (See Japanese page) 
(in English) We propose route assignment and continuity check schemes for optical paths considering specific problems in an all-optical network. In all-optical networks, an existence of impairment limits maximum transmission distance of optical signals to satisfy QoS requirements. The degree of impairment depends on external conditions such as equipment, operation conditions and environmental conditions. It is, therefore, necessary to assign a route to each optical path considering requirement of corresponding optical signal and transmission conditions. In addition, optical paths often go through optical-cross-connects (OXC) which switch the optical signals to target direction. Because the OXC is passive node and has no electric process, continuity check is necessary before transmitting optical signals through the optical paths. If continuity check takes a long time, a whole path set-up also takes a long time, and becomes an obstacle of services requiring short-time path set-up such as an on demand service. This paper proposes (1) a route computation algorithm considering transmission conditions of optical signals, and (2) a fast optical set-up scheme operating in parallel with signaling for optical path set-up. These schemes realize (1) a whole route optimization in order to satisfy optical signal requirements and (2) speed-up of judging continuity check and preparing for alternative paths.
Keyword (in Japanese) (See Japanese page) 
(in English) All-optical networks / impairment / route computation algorithm / continuity check / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 392, NS2008-125, pp. 1-6, Jan. 2009.
Paper # NS2008-125 
Date of Issue 2009-01-15 (NS) 
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 NS2008-125

Conference Information
Committee NS  
Conference Date 2009-01-22 - 2009-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Saga University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Routing、Network Applications, etc. 
Paper Information
Registration To NS 
Conference Code 2009-01-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Set-up and Management Schemes of Optical Paths in All-Optical Networks 
Sub Title (in English)  
Keyword(1) All-optical networks  
Keyword(2) impairment  
Keyword(3) route computation algorithm  
Keyword(4) continuity check  
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1st Author's Name Rie Hayashi  
1st Author's Affiliation NTT Network Service Systems Laboratories, (NTT)
2nd Author's Name Kaori Shimizu  
2nd Author's Affiliation NTT Network Service Systems Laboratories, (NTT)
3rd Author's Name Ichiro Inoue  
3rd Author's Affiliation NTT Network Service Systems Laboratories, (NTT)
4th Author's Name Kohei Shiomoto  
4th Author's Affiliation NTT Network Service Systems Laboratories, (NTT)
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Speaker Author-1 
Date Time 2009-01-22 14:30:00 
Presentation Time 25 minutes 
Registration for NS 
Paper # NS2008-125 
Volume (vol) vol.108 
Number (no) no.392 
Page pp.1-6 
#Pages 6 
Date of Issue 2009-01-15 (NS) 

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