Enhancing Efficiency of Resilient Multipath Routed Elastic Optical
Networks A Novel Approach for Coexisting Protected and Unprotected
Services with Idle Slot Reuse
Abstract
In this work we investigate a scenario in which protected and
unprotected services coexist in an elastic optical network under dynamic
traffic. In the investigated scenario, unprotected services can reuse
the reserved idle bandwidth to provide protection to the protected
services. Under this scenario, we propose a new heuristic algorithm that
enables such reuse as well as we define and introduce the new assignment
problem in elastic optical networks named as Transmission Spectrum
Assignment (T-SA) problem. We evaluated the proposed algorithm through
simulations and we observed that it was able to reduce the network
blocking probability by at least 6%, 7% and 10% depending on the
investigated topology.