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Paper Abstract and Keywords
Presentation 2009-03-10 11:25
A Cooperation Control between Look-ahead Buffer and Loop-back Buffer in Two-stage Variable Optical Packet Switch
Shinya Yatsuo, Yusuke Hirota (Osaka Univ.), Hideki Tode (Osaka Prefecture Univ.), Koso Murakami (Osaka Univ.) PN2008-97
Abstract (in Japanese) (See Japanese page) 
(in English) Programmable variable delay lines have been developed, which can delay packets in variable durations by combining several lengths of FDLs. Furthermore, two-stage switch with this programmable variable delay lines has been proposed. This switch has two buffers. One is the programmable variable delay lines (Look-ahead Buffer). The other is the fixed FDLs that re-input a packet from the output to the input (Loop-back Buffer). The switch can foresee following packets and avoid contentions effectively by using two buffers. However, existing studies only focus on the Look-ahead Buffer and intelligent usage of the Loop-back Buffer is actually out of concern. In this paper, a packet transfer scheduling method that uses the Look-ahead Buffer is proposed. The proposed method controls both the Look-ahead Buffer and the Loop-back Buffer cooperatively and improves the utilization of the switch. The proposed method uses the Loop-back Buffer systematically and distributes traffics in the whole switch. The effectiveness of the proposed method is evaluated through simulation experiments.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical Packet Switching / Optical Packet Switch / Look-ahead Buffer / Loop-back Buffer / Contention Avoidance / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 476, PN2008-97, pp. 75-80, March 2009.
Paper # PN2008-97 
Date of Issue 2009-03-02 (PN) 
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)
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Conference Information
Committee PN  
Conference Date 2009-03-09 - 2009-03-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Yonaguni Island 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Photonic network technologies 
Paper Information
Registration To PN 
Conference Code 2009-03-PN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Cooperation Control between Look-ahead Buffer and Loop-back Buffer in Two-stage Variable Optical Packet Switch 
Sub Title (in English)  
Keyword(1) Optical Packet Switching  
Keyword(2) Optical Packet Switch  
Keyword(3) Look-ahead Buffer  
Keyword(4) Loop-back Buffer  
Keyword(5) Contention Avoidance  
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1st Author's Name Shinya Yatsuo  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Yusuke Hirota  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Hideki Tode  
3rd Author's Affiliation Osaka Prefecture University (Osaka Prefecture Univ.)
4th Author's Name Koso Murakami  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2009-03-10 11:25:00 
Presentation Time 25 minutes 
Registration for PN 
Paper # PN2008-97 
Volume (vol) vol.108 
Number (no) no.476 
Page pp.75-80 
#Pages 6 
Date of Issue 2009-03-02 (PN) 

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