Multiobjective Virtual Topology Design in Optical Networks using Evolutionary Algorithm

M. Pallavi and V. Sridhar (India)


Optical network multilayer design, virtual topology, mul tiobjective optimisation, evolutionary algorithms.


The virtual topology is overlaid on a physical topology and is typically obtained as a solution to a mixed integer lin ear program (MILP). This optimises performance measures like, for example, lightpath congestion on a physical link, traffic congestion on a lightpath, and average hops between a source destination pair in the network. It is observed that by optimising one measure, other measures move away from their optimal value. In this paper, we propose a mul tiobjective design for virtual topology which handles the trade off between performance measures.

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