A Score Function Heuristic for Crosstalk- and Fragmentation-Aware Dynamic Routing, Modulation, Core, and Spectrum Allocation in SDM-EONs

The effects of crosstalk and fragmentation cause unnecessary blocking in space-division multiplexing-based elastic optical networks. A routing, modulation, core, and spectrum allocation (RMCSA) algorithm is proposed in this paper using a novel score function that balances the crosstalk and fragmentation. Reduced blocking and fragmentation levels are observed when compared with the benchmark algorithms.