On routing, modulation format, space and spectrum allocation with protection in space division multiplexing-based elastic optical networks

The required upgradation of the optical network capacity, which is constrained by the non-linear Shannon's limit and the provisioning needed for the future diverse Internet traffic's required capacity, can be resolved by the deployment of the Space Division Multiplexing (SDM)-based Elastic Optical Networks (EONs) (SDM-b-EONs). However, with an increase in the rates of transmissions, for countering the network failures, there will be a need for protection mechanisms, specifically those, which can protect the routes and also provision solutions which are end-to-end. In the current work, for an SDM-b-EON, we introduce the Routing, Modulation Format, Space and Spectrum Allocation with Protection-with-Protection (RMFSSA-w-P) algorithm which is independent of the failures in protecting the routes and also considers the modulation format adaptation. We conduct extensive simulations considering realistic networks and the obtained results demonstrate the superior performance of the RMFSSA-w-P algorithm than the existing strategies.