A New Physical Layer Imperfection-Aware IA-RSA Algorithm for Elastic Optical Networks

• Alexandre Fontinele UFPI
• André Soares UFPI

DOI: https://doi.org/10.5753/ctd.2017.3458

Abstract

This paper proposes a new Impairment-Aware Routing and Spectrum Assignment (IA-RSA) algorithm for elastic optical networks. The goal of the algorithm is to reduce the blocking probability caused by the degradation of the quality of transmission from new establishments of circuits. Our proposal is compared to two other IA-RSA algorithms: Modified Dijkstra Path Computation (MD-PC) e K-Shortest Path Computation (KS-PC). Simulation results show that the proposed algorithm outperforms the MD-PC and KS-PC algorithms in terms of i) circuit blocking probability, ii) bandwidth blocking probability, iii) fairness of service to different source-destination pairs, and iv) fairness of service to different bandwidths for the EON and NSFNet topologies.

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