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Paper Abstract and Keywords
Presentation 2014-03-07 09:10
Power efficient traffic engineering in light trail networks
Yukinobu Fukushima, Tokumi Yokohira (Okayama Univ.) NS2013-235
Abstract (in Japanese) (See Japanese page) 
(in English) According to rapid increase of the Internet traffic, its total power consumption also increases. Therefore, it is necessary to decrease the total power consumption. Lightpath networks attract attention because they can relief the increase of the total power consumption by bypassing IP routers. Light trail networks have been proposed as an extended network architecture of lightpath networks. Light trail networks can achieve higher throughput than lightpath networks, and it is expected that light trail networks also show higher power efficiency than light path networks. In this research, we evaluate the power efficiency of light trail networks. In the evaluation, we reduce a power-efficient routing and wavelength assignment problem to a shortest path problem on an auxiliary graph, and solve it. In order to achieve this, we modify the conventional auxiliary graph for lightpath networks so that it can reflect the communication method of light trail networks. In addition, we calculate link costs of the auxiliary graph so that they corresponds to the increase of the total power consumption caused by the accommodation of traffic demands. Simulation results show that 1) light trail networks show higher power efficiency only when the network load is low and when the bandwidth granularity of communication channels is coarse, and 2) light trail networks show higher blocking probability than lightpath networks when they aim at minimizing the total power consumption.
Keyword (in Japanese) (See Japanese page) 
(in English) Light-trail networks / power efficiency / auxiliary graph / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 472, NS2013-235, pp. 337-342, March 2014.
Paper # NS2013-235 
Date of Issue 2014-02-27 (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)
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Conference Information
Committee NS IN  
Conference Date 2014-03-06 - 2014-03-07 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyazaki Seagia 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To NS 
Conference Code 2014-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Power efficient traffic engineering in light trail networks 
Sub Title (in English)  
Keyword(1) Light-trail networks  
Keyword(2) power efficiency  
Keyword(3) auxiliary graph  
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1st Author's Name Yukinobu Fukushima  
1st Author's Affiliation Okayama University (Okayama Univ.)
2nd Author's Name Tokumi Yokohira  
2nd Author's Affiliation Okayama University (Okayama Univ.)
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Speaker Author-1 
Date Time 2014-03-07 09:10:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2013-235 
Volume (vol) vol.113 
Number (no) no.472 
Page pp.337-342 
#Pages 6 
Date of Issue 2014-02-27 (NS) 

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