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Paper Abstract and Keywords
Presentation 2014-03-06 11:40
Virtual Network Reconstruction for Maintaining Robustness of Physical Network and Rapid Topology Changing
Yasuhiro Urayama, Takuji Tachibana (Univ. of Fukui) NS2013-184
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we propose a new virtual network construction for maintaining the robustness of a physical network and changing its topology rapidly. In our proposed method, at first, a table that has shortest paths for some node pairs is generated by using Dijkstra's algorithm for the physical network. In this table, the shortest path and the number of hops are stored for the node pairs. When a provider receives a request of changing a virtual network topology from an user, the provider checks the generated table for the topology changing. If a route that can be used in the topology changing is included in the table, the topology is changed with the route. If such a route is not included in the table, the topology is changed with a shortest path betweenness of each link. Moreover, after the topology is changed, the new topology is also changed to another topology so that the robustness of the physical network can be optimized. This topology changing is performed by solving an optimization problem for the network resources. We evaluate the performance of our proposed method with simulation, and we show the effectiveness of our proposed method by comparing with the conventional method.
Keyword (in Japanese) (See Japanese page) 
(in English) Virtual networks / Network robustness / Topology changing / Optimization problem / Shortest path betweenness / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 472, NS2013-184, pp. 43-48, March 2014.
Paper # NS2013-184 
Date of Issue 2014-02-27 (NS) 
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. (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) Virtual Network Reconstruction for Maintaining Robustness of Physical Network and Rapid Topology Changing 
Sub Title (in English)  
Keyword(1) Virtual networks  
Keyword(2) Network robustness  
Keyword(3) Topology changing  
Keyword(4) Optimization problem  
Keyword(5) Shortest path betweenness  
1st Author's Name Yasuhiro Urayama  
1st Author's Affiliation Fukui University (Univ. of Fukui)
2nd Author's Name Takuji Tachibana  
2nd Author's Affiliation Fukui University (Univ. of Fukui)
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Date Time 2014-03-06 11:40:00 
Presentation Time 20 
Registration for NS 
Paper # IEICE-NS2013-184 
Volume (vol) IEICE-113 
Number (no) no.472 
Page pp.43-48 
#Pages IEICE-6 
Date of Issue IEICE-NS-2014-02-27 

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