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Paper Abstract and Keywords
Presentation 2014-03-07 10:20
A New Load Balancing Scheme by Using Modified Betweenness Centralities in WDM Networks with Wavelength Converters
Yutaro Nagata, Koichi Asatani, Hiroyuki Otsuka (Kogakuin Univ.) IN2013-163
Abstract (in Japanese) (See Japanese page) 
(in English) In WDM networks, a node requests an optical path, selects a wavelength along with a candidate route, and establishes an end-to-end optical path if any wavelength is available. Routing scheme adopting OSPF is widely used. It selects the least cost route. The cost is given by the number of hops from an originating node to a destination node. When no wavelength is available along with the selected route, the request is blocked. When the traffics concentrate on specific nodes, path requests will be blocked at these nodes.
In this paper, it is clarified that the traffics are concentrated on nodes with high betweenness centrality by using OSPF. Furthermore, it is clarified that the betweenness centrality are not enough as a cost in routing. We propose a new load balancing method for WDM networks based on the link cost control by using “modified betweenness centralities”. We also propose a wavelength converter placement scheme which will drastically reduce the blocking ratio.
Keyword (in Japanese) (See Japanese page) 
(in English) WDM Network / Load Balancing / Betweenness Centrality / Wavelength Converter / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 473, IN2013-163, pp. 117-122, March 2014.
Paper # IN2013-163 
Date of Issue 2014-02-27 (IN) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IN2013-163

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 IN 
Conference Code 2014-03-NS-IN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A New Load Balancing Scheme by Using Modified Betweenness Centralities in WDM Networks with Wavelength Converters 
Sub Title (in English)  
Keyword(1) WDM Network  
Keyword(2) Load Balancing  
Keyword(3) Betweenness Centrality  
Keyword(4) Wavelength Converter  
1st Author's Name Yutaro Nagata  
1st Author's Affiliation kogakuin University (Kogakuin Univ.)
2nd Author's Name Koichi Asatani  
2nd Author's Affiliation kogakuin University (Kogakuin Univ.)
3rd Author's Name Hiroyuki Otsuka  
3rd Author's Affiliation kogakuin University (Kogakuin Univ.)
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Date Time 2014-03-07 10:20:00 
Presentation Time 20 
Registration for IN 
Paper # IEICE-IN2013-163 
Volume (vol) IEICE-113 
Number (no) no.473 
Page pp.117-122 
#Pages IEICE-6 
Date of Issue IEICE-IN-2014-02-27 

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