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Paper Abstract and Keywords
Presentation 2008-03-07 10:45
Dynamic control of Extra Active Period for Power-saving LAN Switches
Hitomi Tamura, Ritsuko Tomihara, Yutaka Fukuda, Kenji Kawahara, Yuji Oie (Kyushu Inst. of Tech.) IN2007-217
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed ``Extra Active Period (EAP)'' model for mitigating the over-frequent mode switching, which gives rise to an in-rush current causing electrical damage to some devices on a energy-saving LAN switch, and we have analytically investigated the impact of EAP on power-saving effect and the frequency of mode changes by queueing theory. In this analysis, the value of EAP was set to be fixed and pre-determined, however, the dynamic control of EAP, which is determined according to the measurement value of packet inter-arrival time, is expected to be more effective for power-saving. Thus, this paper proposes the dynamic control scheme of EAP for power-saving LAN switches depending on the short-term fluctuation of packet inter-arrival time, and shows the power reduction ratio and the frequency of mode changes through computer simulation. Furthermore, we also show the impact of packet arrival model on the power-saving effect.
Keyword (in Japanese) (See Japanese page) 
(in English) Power-saving / LAN Switch / Extra Active Period / In-rush current / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 525, IN2007-217, pp. 349-354, March 2008.
Paper # IN2007-217 
Date of Issue 2008-02-28 (IN) 
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 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 IN 
Conference Code 2008-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Dynamic control of Extra Active Period for Power-saving LAN Switches 
Sub Title (in English)  
Keyword(1) Power-saving  
Keyword(2) LAN Switch  
Keyword(3) Extra Active Period  
Keyword(4) In-rush current  
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1st Author's Name Hitomi Tamura  
1st Author's Affiliation Kyushu Institute of Technology (Kyushu Inst. of Tech.)
2nd Author's Name Ritsuko Tomihara  
2nd Author's Affiliation Kyushu Institute of Technology (Kyushu Inst. of Tech.)
3rd Author's Name Yutaka Fukuda  
3rd Author's Affiliation Kyushu Institute of Technology (Kyushu Inst. of Tech.)
4th Author's Name Kenji Kawahara  
4th Author's Affiliation Kyushu Institute of Technology (Kyushu Inst. of Tech.)
5th Author's Name Yuji Oie  
5th Author's Affiliation Kyushu Institute of Technology (Kyushu Inst. of Tech.)
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Speaker Author-2 
Date Time 2008-03-07 10:45:00 
Presentation Time 20 minutes 
Registration for IN 
Paper # IN2007-217 
Volume (vol) vol.107 
Number (no) no.525 
Page pp.349-354 
#Pages 6 
Date of Issue 2008-02-28 (IN) 

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