In this paper we propose a new scheduling mechanism that combines priority scheduling with dynamic bandwidth allocation in EPONs. The multi-point control protocol (MPCP) is adopted to facilitate the cooperation between OLT and ONUs. A delta cycle time algorithm (DCTA) is proposed to get adapted to the burst nature of VBR streaming media
traffic. An enhanced GATE generation (EGG) method is discussed to increase the channel utilization. Simulation results show that our method leads to significant decrease of packet delay for streaming media traffic especially under heavy traffic load.
This paper discusses the integrated routing algorithm for IP over WDM network, and presents a new online band priority algorithm (BPA) using the hierarchical multiplexing scheme. Based on the integrated routing model, where both IP layer and optical layer share full routing information with each other, the BPA treats the waveband as the grooming unit to adapt to the hierarchical OXC architecture. The BPA introduces a waveband grooming related cost function to obtain the
optimal route. Simulation results show that the proposed BPA achieves a comparatively low blocking probability for online routing.