Energy efficient design for Green optical core network

In recent years Green technologies are emerging as important research efforts to develop strategies to reduce the energy consumption in the network and also to develop energy efficient architecture for the optical networks. In this work we have considered typical optical backbone network architecture, and have minimized the operational power primarily for provisioning techniques. Typically, operational power depends on strategy operations, and route. Traffic grooming is being considered as a key functionality of WDM networks, in which, multiple low-speed traffic requests are groomed onto a single, high-capacity lightpath. Various approaches viz. direct lightpath, optical by-pass, traffic grooming, dynamic routing; have been discussed and evaluated. The work amply brings out the advantage of using dynamic routing, in conjunction with traffic grooming, in greening the optical backbone.