Green multicast grooming based on cross-shared protection in optical WDM networks

Currently, multicast survivability in optical network obtains more attention. This paper focuses on the field of multicast grooming shared protection in green optical network and designs a novel auxiliary graph and a shared matrix to address the survivable multicast resource consumption. This paper also proposes a new heuristic called Green Multicast Grooming algorithm based on spanning path Cross-Shared protection (GMG-CSP), in which network reliability, energy efficiency and resource utilization are jointly considered. Simulation results testify that, compared to other algorithms, the proposed GMG-CSP not only has lower blocking probability and higher bandwidth utilization ratio, but also saves more energy.