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Title: Channel-based RSA approaches for QoS protection of slices over elastic optical networks
Authors: Assis, Karcius Day Rosário
Almeida Júnior, Raul Camelo de Andrade
Santos, Alex Ferreira dos
Dias, Leonardo Pereira
Giozza, William Ferreira
Sousa Júnior, Rafael Timóteo de
Jaumard, Brigitte
Nejabati, Reza
Simeonidou, Dimitra
Assunto:: Redes ópticas elásticas
Roteamento - protocolos
Issue Date: 14-Feb-2022
Publisher: IEEE Xplore
Citation: ASSIS, Karcius Day Rosário et al. Channel-based RSA approaches for QoS protection of slices over elastic optical networks. IEEE Access, v. 10, p. 20714-20726, 2022. DOI 10.1109/ACCESS.2022.3151559. Disponível em: Acesso em: 25 abr. 2022.
Abstract: Resource efficiency and survivability are critical concerns in elastic optical networks (EONs) with virtualization. In this paper, we investigate some important aspects in network survivability design against single-link failure under dedicated protection and bandwidth squeezing schemes when multiple virtual topologies are employed. We propose a link-path integer linear programming (ILP) formulation to solve the joint virtualization and survivability problem in elastic optical networks for large network instances, and derive some different types of protection for each virtual topology considering a channel-based spectrum approach to solve the spectrum allocation. Besides, we propose a heuristic to find a pair of predefined paths to ILP formulation aiming to minimize the link load. The proposed ILP and heuristic provide effective survivability solutions and spectrum resource savings for a cooperative design of modern survivable virtualized EONs taking advantages of a link-path model.
Licença:: IEEE Access - This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see Fonte: . Acesso em: 25 abr. 2022.
Appears in Collections:ENE - Artigos publicados em periódicos

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