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Since the Internet consumes a large (and increasing) amount of energy, “green” strategies are desirable to help service providers (SP) operate their networks and provision services more energy efficiently. We focus on green provisioning strategies for optical wavelength-division multiplexing networks. A number of approaches from component layer to network layer are discussed, which should help improve...
This paper investigates the benefits of enabling services with differentiated energy-saving (DiffEnS) in WDM optical networks with traffic grooming capabilities. DiffEnS can reduce the operating cost (OPEX) as more customers gradually join green programs and subscribe to the energy efficient traffic services referred to as the Green. Based on a modular node design with grooming capabilities, two heuristic...
Compared to energy-awareness research in wireless and copper networks, less attention has been given to energy awareness in optical counterparts. In this paper, we introduce energy-aware traffic grooming problems for optical networks. We show that by looking further into the modular physical architecture of a node during request allocations, we can significantly reduce the number of active components...
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