Improving the Performance of SDM-EON Through Demand Prioritization: A Comprehensive Analysis

This paper studies the impact of demand-prioritization on Space-Division Multiplexing Elastic Optical Networks (SDM-EON). For this purpose, we solve static Routing, Modulation Level, Spatial Mode, and Spectrum Assignment (RMLSSA) problem using 34 different explainable strategies. Although previous works have applied heuristics or meta-heuristics to perform demand-prioritization, they not focused identifying best prioritization strategies, their inner operation, implications behind good performance by thorough profiling analysis. We focus a comprehensive analysis strategies sort network demands in SDM-EON, considering physical-layer impairments found optical communications. Also, show that simply common shortest path routing might lead higher resource requirements. Extensive simulation results up 8.33% capacity savings can be achieved average balanced routing, 16.69% performing strategy compared worst-performing ones, most used literature (serving with bandwidth requirements first) is best-performing one but sorting based lengths, double-criteria break ties key for performance. These are relevant showing combination significantly Additionally, increase understanding about workings heuristics, valuable knowledge when settings forbid more computationally complex approaches.