Algorithm for Shared Path for Protection of Space Division Multiplexing Elastic Optical Networks

Although shared path protection has been employed for protecting traffic flows against network failures, to our knowledge, it has not been considered for path protection in elastic optical networks with space division multiplexing (SDM). In this paper, we propose an algorithm to dynamically generate primary and backup paths using a shared backup scheme. The proposed algorithm is compared to the Failure-Independent Path Protecting for MultiCore network (FIPPMC) algorithm and to the Shared path with Spectrum and Core Assignment (SSCA) algorithm. Results indicate that 100% protection for single failures can be provided by the proposed algorithm with low overhead when compared to the other two algorithms.