Energy-Efficient Sleep-Aware Slicing-Based Scheduler (SA-SBS) for Multi-Operators Virtualized Passive Optical Networks

Due to the long reach of next-generation passive optical network (PON), idea sharing infrastructure between multiple PON operators has emerged reduce capital and operational expenditures. However, standard transmission convergence layer requires an independent virtual bandwidth management process for each operator. Each operator uses a dynamic assignment (vDBA) upstream control. An additional scheduler is required create single physical map (phyBW-map) with non-overlapping time slots terminal (ONT) or unit (ONU) in frame. existing slicing-based (SBS) using schemes does not perform well cyclic sleep (CSP) energy conservation due inefficient utilization residual asleep ONUs This work introduces energy-efficient sleep-aware (SA-SBS) multi-operator scenario ten gigabit-capable symmetric PONs (XGS-PONs). Our approach achieves 7-10% better savings than without compromising delays delay variance. Moreover, we demonstrate that our scheme outperforms original SBS, resulting average delay(s) reduction up 28.5% 1, 2, 3, 4, respectively. findings can significantly improve efficiency latency performance scenarios, paving way sustainable reliable communication infrastructure.