Burst Scheduling Algorithms for Providing Quality-of-Service (QoS) in Optical Burst Switched Networks

摘要

There are fast growing research interests in optical switching technologies. Optical Burst Switching (OBS) is a promising solution for the future optical Internet. One of critical design issues in OBS is how to provide the Quality-of-Service (QoS) on optical networks. In this paper, we propose a buffer allocation algorithm to schedule bursts at the edge OBS nodes and a Fiber Delay Lines (FDL) buffer allocation algorithm to schedule bursts at the core OBS nodes in order to provide service differentiations. Simulation results demonstrate that these algorithms provide the controllable burst loss probability for different service classes.