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Paper Abstract and Keywords
Presentation 2008-03-06 09:40
Performance Comparison between Fixed Length Packets and Variable Length Packets in Optical Packet Switching
Eiji Ishikawa (Waseda Univ.), Sugang Xu (NICT), Yoshiaki Tanaka (Waseda Univ.) NS2007-144
Abstract (in Japanese) (See Japanese page) 
(in English) Packet contention occurs at a switching node in optical packet switching networks. By using fibre delay line (FDL) buffers, packet contention can be avoided. In case of synchronous networks, if the length of FDLs is properly selected according to the fixed length of packets, no waste of FDL use will occur. FDL will be used efficiently to avoid packet contention. However, if the current Internet packets which have variable lengths are fragmented and embedded into the fixed length optical packet of synchronous networks, it is considered inefficient due to the waste within the last optical packet where the last fragmented payload is always shorter than the fixed optical packet size. This will degrade the performance. In this paper, through simulations, we quantitatively evaluate the performance between fixed length packets and variable length packets in optical packet switching. Our motivation in this paper is to observe the possible clues to improve the FDLs efficiency and system performance in both asynchronous and synchronous optical packet switching networks.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical packet switching / Fibre delay line / Variable length packet / Fixed length packet / Slot length / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 524, NS2007-144, pp. 83-88, March 2008.
Paper # NS2007-144 
Date of Issue 2008-02-28 (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 NS2007-144

Conference Information
Committee NS IN  
Conference Date 2008-03-06 - 2008-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Bankoku Shinryokan 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General issues 
Paper Information
Registration To NS 
Conference Code 2008-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance Comparison between Fixed Length Packets and Variable Length Packets in Optical Packet Switching 
Sub Title (in English)  
Keyword(1) Optical packet switching  
Keyword(2) Fibre delay line  
Keyword(3) Variable length packet  
Keyword(4) Fixed length packet  
Keyword(5) Slot length  
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Keyword(7)  
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1st Author's Name Eiji Ishikawa  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Sugang Xu  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
3rd Author's Name Yoshiaki Tanaka  
3rd Author's Affiliation Waseda University (Waseda Univ.)
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Speaker Author-1 
Date Time 2008-03-06 09:40:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2007-144 
Volume (vol) vol.107 
Number (no) no.524 
Page pp.83-88 
#Pages 6 
Date of Issue 2008-02-28 (NS) 

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