Contention Resolution through Network Global Control in Optical Packet Switching Networks

Abstract—Optical buffering is one of the main obstacles in optical packet switching (OPS) networks. We proposed the network global control strategy to resolve this problem. By introducing the cycled traffic at the edge node and the slot assignment algorithm at the core node, a slotted OPS networks with no contention can be realized. In this network, a good throughput, end to end delay and delay jitter performance can be gotten at high load simultaneously, so it may be a promising candidate for the future optical networks. Keywords-optical packet switching (OPS), network global control, slot assignment algorithm, optical buffers I