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In a multi-domain network, domains may be defined based on geography or administrative boundaries. For domains that are constructed based on geographic locations, multiple links within the same domain may fail simultaneously due to geographically localized failure events. For domains that are defined administratively, a domain administrator may not be able to provide link-disjointness for two paths...
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...
We introduce an energy-efficient traffic grooming scheme for promoting greener optical networks. The scheme considers a modular node architecture, reuses already active components during request allocations, and conserves total energy consumption in the network.
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