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Energy efficient partition-lightpath scheme for IP over WDM core networks

Mohd Warip, M. N. and Andonovic, I. and Glesk, I. and Badlishah Ahmad, R. and Ehkan, P. and Kamarudin, L. M. and Elshaikh, M. (2015) Energy efficient partition-lightpath scheme for IP over WDM core networks. Procedia Computer Science, 52. pp. 515-522. ISSN 1877-0509

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Abstract

In this paper, the research focus on the development of energy saving schemes with roots in sleep modes that support the evolution of greener core optical IP networks. The cornerstone of the adopted strategy is partition-lightpath schemes underpinned by the hibernation state implemented through a modification of the intelligent control plane, in particular for transparent network architectures under different scenarios. An enhanced multi-level operational hibernation mode through partition-lightpath was defined including functionality, structure considering its implementation issues. Through the use of appropriate design parameters the impact on blocking probability, wavelengths assignment, LSP connection requests, degree of node connectivity and network utilization can be minimized while also achieving energy savings. Evaluation of this scheme indicates potential reduction in power consumption from 9% up to 17% at the expense of reduced network performance.