Performance of routing and spectrum allocation (RSA) algorithms for a last generation centralized optical network (SDON)
Introduction: This article is the product of research “Comparative analysis of the performance of spectrum allocation algorithms (RSA) of a distributed optical network to a centralized optical network limited in resources” developed at the Universidad del Cauca in 2020.
Problem:The growing demand for traffic and the diversity of current services determine the need to implement effective strategies for the allocation of resources, so it is necessary to characterize the behavior of new algorithms against all possible conditions to reduce the uncertainty of their results.
Objective:Comparing performance at the simulation level of RSA algorithms in a resource-constrained centralized OCS optical network.
Methodology:A bibliographic compilation is made of the aspects to be considered in the application of RSA algorithms in a centralized optical network, to propose a simulation scenario in which it is possible to test their performance.
Results:Once the simulation scenario is implemented, the performance of the RSA algorithms is evaluated in different cases of resource availability according to the parameters of blocking probability, end to end delay and number of lost connections.
Conclusion: Through this research it was possible to characterize and apply different RSA algorithms in the most recent generation of Software‐Defined Optical Networks (SDON), which determined the most appropriate way to implement the algorithms for this environment.
Originality:This innovative research has been performed to analyze the impact of resource limitations on the performance of RSA algorithms when they operate on a centralized network.
Limitations:The number of simulations needed and the time required for them.
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