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International Journal of Optics
Volume 2014, Article ID 510495, 5 pages
Research Article

A Novel Shared Protection Scheme Based on Aggregate Wavelength in High Speed Networks

1Kanya Maha Vidyalaya, Jalandhar 144008, India
2Ludhiana College of Engineering and Technology, Ludhiana, Punjab 141113, India
3Thapar University, Patiala, Punjab 147004, India

Received 3 June 2014; Revised 19 October 2014; Accepted 29 October 2014; Published 20 November 2014

Academic Editor: Stefan Wabnitz

Copyright © 2014 Anshu Oberoi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We propose novel analytical model of dynamic link cost evaluation in IP over WDM networks. We suggest disjoint path algorithm for the primary and backup path based on wavelength aggregate information, to provide shared backup. We show the optimality of pair selected because of joint optimization of the pair paths. The shareable capacity factor is introduced to establish the effect of load balancing on resources. We compared our simulation results with that of separate protection at connection and showed improvement on resource utilization performance of the network. We also study the blocking probability of proposed scheme.