Graph Theory With Applications
Graph Theory With Applications
Optical layer survivability: a services perspective
IEEE Communications Magazine
Issues for routing in the optical layer
IEEE Communications Magazine
Loopback recovery from double-link failures in optical mesh networks
IEEE/ACM Transactions on Networking (TON)
Dual-link failure resiliency through backup link mutual exclusion
IEEE/ACM Transactions on Networking (TON)
Adjacent link failure localization with monitoring trails in all-optical mesh networks
IEEE/ACM Transactions on Networking (TON)
Realization strategies of dedicated path protection: A bandwidth cost perspective
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Traditional survivable network design assumes that at any time at most a single link or node fails. In optical networks, a single point of failure may lead to the failure of multiple links. In this paper, we consider the design of an optical network that can survive the failures of any two neighboring links. We present a loopback recovery method that requires the computation of backup paths for each link. An optimal algorithm for computing the backup paths is presented. Numerical results comparing the performance of our algorithm with other loopback approaches indicate that a slight increase in capacity can achieve 100% protection under this failure model.