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Performance improvement of an optical network providing services based on multicast

Abstract : We focus on circuit switching optical networks and on repetitive multicast demands whose source and destinations are à priori known by an operator. He may have corresponding trees \ready to be allocated" and adapt his network infrastructure according to these transmissions. This adjustment consists in setting branching routers in the selected nodes of a predefined tree. The branching nodes are opto-electronic nodes which are able to duplicate data and retransmit it in several directions. We are interested in the choice of nodes of a multicast tree where the limited number of branching routers should be located to minimize the amount of required bandwidth. After formally stating the problem we solve it by proposing a polynomial algorithm whose optimality we prove. We perform computations for different methods of the tree construction and conclude by giving dimensioning guidelines.
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Contributor : Evelyne Faivre Connect in order to contact the contributor
Submitted on : Monday, May 2, 2011 - 4:31:15 PM
Last modification on : Wednesday, October 20, 2021 - 12:24:14 AM


  • HAL Id : hal-00589897, version 1



Vincent Reinhart, Johanne Cohen, Joanna Tomasik, Dominique Barth, Marc-Antoine Weisser. Performance improvement of an optical network providing services based on multicast. 26th International Symposium on Computer and Information Sciences (ISCIS 2011), Sep 2011, Londres, United Kingdom. pp.173-178. ⟨hal-00589897⟩



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