Abstract
In this paper, we design an optimization problem for grooming of multicast traffic requests in WDM mesh networks. The objective is to minimize the network cost by minimizing the number of optical splitters and at the same time minimizing the total number of wavelengths used in the network. We propose a heuristic algorithm called Priority based Sub-Light Tree Grooming (PSLTG) to achieve scalability for larger networks. PSLTG tries to satisfy all multicast requests by constructing sub-light trees. A mathematical formulation is derived to minimize the network cost associated with the number of optical splitters and number of wavelengths used in the networks. Simulations are conducted on several standard networks to compare the cost and required number of wavelengths used in the networks. The results thus obtained by comparison, helped us to conclude that the proposed approach PSLTG produces better performance than well known Sub-Light Tree Saturated Grooming (SLTSG) and Multicast Traffic Grooming (MTG) algorithms.
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Pradhan, A.K., Araiyer, S. & De, T. Design of light-tree based multicast traffic grooming in WDM mesh networks. J Opt 43, 330–340 (2014). https://doi.org/10.1007/s12596-014-0211-z
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DOI: https://doi.org/10.1007/s12596-014-0211-z