A genetic algorithm for multicasting in resource constraint WDM mesh networks

Multicast Routing and Wavelength Assignment (MRWA) in WDM mesh network is a vital problem in one-to-many communication in photonic domain. The majority of works done in this problem is based on different heuristics. In this paper we have formulated the problem as a delay controlled splitting minimization problem and applied a genetic algorithm to provide a near optimal solution for multicasting in WDM mesh network. The major contribution in this paper is that we have taken multiple objectives in account including QoS parameter like delay and network resource parameters like splitters, optical channels while generating light-tree for each multicast session request. Here we have designed a novel tunable fitness function which provides efficient solution for MRWA problem with multiple conflicting objectives in a constrained setup. The simulation results establish the truth of this claim significantly.