A Physical-Layer Collision Awared All-Optical Time Slice Routing Optimization Method for High Reliable Low-Latency Communication in Transmission and Computing Resource Integration Networks

To provide determined network services, including high bandwidth, low data loss, low latency, and low jitter services, to transmission and computing resource integration networks, a novel routing optimization method is proposed. Based on physical-layer collision awareness and transparent packet duplication, delay and deletion, high-reliability and low-latency all-optical communication can be achieved. In addition, this method has the potential to be adapted to rapidly time-varying topologies and link lengths in wireless optical networks. In this paper, the processing and distribution of data packets in this routing optimization method are described; a structure of the all-optical switching node for supporting this routing optimization method is presented; and the influence of switching node performance, such as the maximum cache time, the maximum multicast packet number and the perception latency, on end-to-end availability are analyzed by simulation.