Channel and Delay Weighted Response Ratio Scheduler for 5G and Beyond Systems

The fifth generation (5G) and beyond technologies need robust schedulers to support emerging applications with stringent quality of service (QoS) demands. Our work designs a channel and delay weighted response ratio (CDRR) scheduler for coexisting heterogeneous real-time (RT) enhanced mobile broadband (eMBB) traffic. We develop a novel prioritization function with a numerical bound analysis of the delay budgets, packet sizes and channel conditions in a 5G setting. The proposed scheduler outperforms modern schedulers with a significant reduction in the average RT queuing delay. It supports higher RT traffic densities by providing the lowest mean packet-dropping ratio at high reliability.