Abstract
QoS provisioning in OBS networks can be generally classified as relative QoS provisioning and absolute QoS provisioning. With relative QoS provisioning, some traffic classes will have relatively better QoS than other classes without specifying any quantitative guarantees. Absolute QoS provisioning on the other hand provides for specific quantitative guarantees to each traffic class. Relative QoS differentiation can be applied when it is difficult to provide quantitative guarantees in complicated network scenarios. This chapter will discuss relative QoS differentiation provisioning among multiple traffic classes in OBS networks. Various mechanisms including offset time-based, burst segmentation, preemption based, header packet scheduling, proportional QoS differentiation, buffer allocation based scheme, and burst scheduling based scheme will be discussed.
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(2007). Relative QoS Differentiation. In: Quality of Service in Optical Burst Switched Networks. Optical Networks. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-47647-6_3
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DOI: https://doi.org/10.1007/978-0-387-47647-6_3
Publisher Name: Springer, Boston, MA
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