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A collection of slides from the authorpsilas seminar presentation is given. In this paper we propose: a mathematical model for the global design problem of WDM networks including the traffic grooming. This problem consists in: finding the number of fibers between each pair of nodes (i.e., the physical topology); finding the number of transponders to install at each node; choosing the set of lightpaths (i.e., the virtual topology); routing these lightpaths over the physical topology; grooming and routing the traffic over the lightpaths. A heuristic algorithm to find "good" feasible solutions. Finally, numerical results are presented and analyzed.
Date of Conference: Sept. 28 2008-Oct. 2 2008