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Resource saving logical topology design for reconfigurable Next Generation Internet backbones

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3 Author(s)
El Asghar, N.B. ; Networking Dept., High Sch. of Commun. (SUP''COM), Laghazelle, Tunisia ; Frikha, M. ; Tabbane, S.

IP over WDM is a promising architecture for the next generation Internet (NGI) backbones. Traffic engineering (TE) for next generation multimedia services is a new challenge for multilayer co-operation within these communication networks. In MPLS/GMPLS based IP over WDM networks, the TE process is accomplished by the establishment of an adequate logical topology, above the underlying optical topology. However, under dynamic traffic pattern, optimal logical topology design or minimization of transitions when reconfiguring it, cannot always lead to efficient traffic handling. Logical topology stability and reconfiguration require resource availability in the network. We are addressing here a mixed integer linear programming (MILP) formulation for the resource saving logical topology design (RSLTD) for reconfigurable network under dynamic traffic pattern. A case study is detailed wishing to show the effectiveness of our proposal.

Published in:

Communications and Networking, 2009. ComNet 2009. First International Conference on

Date of Conference:

3-6 Nov. 2009