This study, based on the Next Generation Ethernet Passive Optical Network (NG-EPON) facing more complex and changeable network, develops a flexible and efficient resource allocation algorithm. First, a differentiated polling interleaved scheduling (DPIS) framework is designed based on dynamic awareness, significantly reducing idle time slots, improving channel upstream utilization, and performing service-level-agreement (SLA) support and Optical Network Unit (ONU) overall scheduling. Subsequently, a dynamic wavelength and bandwidth allocation (DWBA) scheme is presented, which allocates fair bandwidth between and in subcycles and ensures the timely transmission of large traffic ONUs. As revealed from the simulation results, the developed DPIS-DWBA algorithm exhibits high utilization and low latency performance of the online scheduling algorithm; it can also achieve the offline scheduling to support SLA and fairness and offers more effective delay differentiation and bandwidth fair service.

这项研究基于面向更复杂和可变网络的下一代以太网无源光网络（NG-EPON），开发了一种灵活高效的资源分配算法。首先，基于动态感知设计差异化轮询交错调度（DPIS）框架，显着减少空闲时隙，提高信道上游利用率，并执行服务水平协议（SLA）支持和光网络单元（ONU）整体调度。随后，提出了一种动态波长和带宽分配（DWBA）方案，该方案在子周期之间和子周期之间分配公平的带宽，并确保及时传输大流量ONU。仿真结果表明，所开发的DPIS-DWBA算法具有在线调度算法的高利用率和低时延性能。