Janela de Desfragmentação de Espectro em Redes SDM-EON

• Paulo J. S. Júnior IFB
• Marcelo Marotta UnB
• Lucas R. Costa UnB
• André C. Drummond UnB

DOI: https://doi.org/10.5753/sbrc.2023.448

Abstract

The space division multiplexing (SDM) technology allows the elastic optical network to become a promising candidate for future optical networks. SDM-EON becomes more complex with the introduction of the spatial dimension and the issue of spectrum fragmentation is more concerning compared to traditional EON. To remedy the fragmentation issue we propose a spectrum defragmentation algorithm with a slot segment window technique based on a metric to pick the best fragments with least computational effort. Simulation results show that the proposed algorithm can achieve better performance than an algorithm from the literature in terms of blocking probability and external fragmentation. Results show that our proposal has a significant reduction in spectrum fragmentation and blocking rates of up to 90% and that proactive defragmentation has considerably better results than reactive defragmentation.

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