Improving Fairness for Multi-Hop Bursts in Optical Burst Switching Networks
The loss probability of bursts in an optical burst switching (OBS) network tends to be proportional to the number of hops between the bursts ingress and egress switches because no buffers are implemented for the data bursts at the core switches. This causes unfairness for multi-hop bursts. We propose a preemption scheme, called hop based preemption (HBP), in order to resolve the unfairness issues in OBS networks. In our scheme, a burst that has traveled through many nodes, but will travel through fewer nodes to arrive at a destination can preempt a channel from other scheduled bursts. We evaluated the performance of the HBP in simulated NSF and ARPA networks. The numerical results presented in this paper show that the HBP reduces unfairness for multi-hop bursts in OBS networks.
Optical Burst Switching (OBS) preemption unfairness fairness contention resolution
Tananun Orawiwattanakul Yusheng Ji Yongbing Zhang
The Graduate University for Advanced Studies 2-1-2 Hitotsubashi, Chiyoda-ku,Tokyo 101-8430, Japan The Graduate University for Advanced Studies and National Institute of Informatics 2-1-2 Hitotsubash Graduate School of Systems and Information Engineering University of Tsukuba, Ibaraki 305-8573, Japa
国际会议
APAN Network Research Workshop 2007(第24届亚太高速网络会议)
西安
英文
57-61
2007-08-27（万方平台首次上网日期，不代表论文的发表时间）