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Paper Abstract and Keywords
Presentation 2014-03-07 10:40
Method for Finding Protected Nodes for Network Design Invulnerability against Crash of Some Nodes
Tomomi Matsui, Hiroyoshi Miwa (Kwansei Gakuin Univ.) NS2013-239
Abstract (in Japanese) (See Japanese page) 
(in English) The high reliability and performance are needed as the Internet becomes an important social infrastructure. However, in many actual networks, there exists the risk of telecommunication blackout by a node failure or attack. To get rid of this risk, it is necessary to design a network so that many nodes can communicate each other even if nodes fail. It is desirable that all nodes have their backup facility, but it needs much cost; therefore, at least critical nodes whose failures segmentalize a network to many small connected components must be protected by backup facility. In our previous work, we addressed a problem to determine protected nodes such that, even if non-protected nodes fail, the minimum size of the connected components of a remaining network is not less than a threshold. In this paper, we propose an approximation algorithm with the approximation ratio of two for the problem restricted to the case that at most two nodes simultaneously fail. Moreover, we evaluate the performance of the approximation algorithm by using actual network topologies.
Keyword (in Japanese) (See Japanese page) 
(in English) Node protection / Network design / Optimization / Algorithm / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 472, NS2013-239, pp. 361-366, March 2014.
Paper # NS2013-239 
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)
Download PDF NS2013-239

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) Method for Finding Protected Nodes for Network Design Invulnerability against Crash of Some Nodes 
Sub Title (in English)  
Keyword(1) Node protection  
Keyword(2) Network design  
Keyword(3) Optimization  
Keyword(4) Algorithm  
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1st Author's Name Tomomi Matsui  
1st Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
2nd Author's Name Hiroyoshi Miwa  
2nd Author's Affiliation Kwansei Gakuin University (Kwansei Gakuin Univ.)
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Speaker Author-1 
Date Time 2014-03-07 10:40:00 
Presentation Time 20 minutes 
Registration for NS 
Paper # NS2013-239 
Volume (vol) vol.113 
Number (no) no.472 
Page pp.361-366 
#Pages 6 
Date of Issue 2014-02-27 (NS) 

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