Abstract
In this article, we address the problem of static routing and spectrum allocation (RSA) in an elastic optical network (EON) with dedicated path protection (DPP) consideration. We formulate RSA-DPP as an Integer Linear Programming (ILP) problem. Since RSA is a difficult problem, we propose an Adaptive Frequency Assignment with Dedicated Path Protection (AFA-DPP) heuristic algorithm to provide near-optimal solutions to the problem. We investigate the efficiency of AFA-DPP for a set of network scenarios. Evaluation results show that the proposed algorithm outperforms other reference algorithms.
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