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Multicast grooming algorithm in green IP over WDM networks

This paper performs the energy-saving for multicast IP over WDM network, presents the multicast grooming policies and devises a new auxiliary graph to support the green grooming. Based on the proposed auxiliary graph, a novel Multicast Green Grooming (MGG) algorithm by using energy-efficient optical bypass and grooming policy combination is proposed. Simulation results show that MGG can achieve lower blocking probability and save more energy compared to traditional algorithm.