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Title: Algorithms for quality of service provisioning and enhancement in optical burst switched networks
Keywords: Optical networks, Optical Burst Switching, Quality of Service, scheduling, absolute QoS, load balancing
Issue Date: 7-Jul-2006
Citation: PHUNG MINH HOANG (2006-07-07). Algorithms for quality of service provisioning and enhancement in optical burst switched networks. ScholarBank@NUS Repository.
Abstract: In this thesis, we present several algorithms for provisioning and enhancing Quality of Service (QoS) in Optical Burst Switched (OBS) networks at different operational levels, from link level to path and network levels. At the link level, we introduce an optimal channel-scheduling algorithm called Ordered Scheduling to reduce burst loss probability at the link level and two practical realizations for it. Several implementation issues are also discussed. At the path level, we develop an absolute QoS framework that can provide quantitative edge-to-edge loss probability guarantees for flows in OBS networks. Finally, at the network level, we investigate a phenomenon unique to OBS networks called the streamline effect and derive an analytical formula to accurately calculate the burst loss probability at a link. We incorporate this formula into the link cost function of a dynamic load-balancing algorithm for absolute QoS traffic to improve network-wide loss performance.
Appears in Collections:Ph.D Theses (Open)

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