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Crosstalk- and fragmentation-aware survivable routing, modulation, space, and spectrum assignment using Ant Colony Optimization

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Autor(es):
de Lima, Leandro Alvarez ; Pavani, Gustavo Sousa
Número total de Autores: 2
Tipo de documento: Artigo Científico
Fonte: Computer Networks; v. 249, p. 15-pg., 2024-05-30.
Resumo

The use of Space Division Multiplexing (SDM) technology in Elastic Optical Networks (EONs) is a promising solution to improve the transport capability and flexibility required by next -generation applications. In this work, we have illustrated that Ant Colony Optimization (ACO) algorithms can be incorporated into the network control plane and associated with a crankback mechanism to provision and restore lightpaths in a fully distributed manner. In effect, by tackling the challenging Routing, Modulation, Spectrum, and Space Assignment (RMSSA) problem, ACO algorithms can address the inter -core crosstalk and spectrum fragmentation that may limit the potential of the SDM-EON. By comparing different levels of resource state accuracy at the control plane, the simulation results demonstrate the superior performance of the ACO algorithms compared to routing algorithms based on a centralized control plane with a link -state routing protocol, showcasing lower bandwidth blocking rate, comparable restorability, controlled crosstalk levels, and higher scalability, all achieved without a significant increase in setup and restoration times. (AU)

Processo FAPESP: 15/24341-7 - Novas estratégias para enfrentar a ameaça de exaustão da capacidade
Beneficiário:Helio Waldman
Modalidade de apoio: Auxílio à Pesquisa - Temático