Research Article
A Novel QoS Provisioning Scheme for OBS Networks
@INPROCEEDINGS{10.1007/978-3-642-30376-0_29, author={Shavan Askar and Georgios Zervas and David Hunter and Dimitra Simeonidou}, title={A Novel QoS Provisioning Scheme for OBS Networks}, proceedings={Broadband Communications, Networks, and Systems. 7th International ICST Conference, BROADNETS 2010, Athens, Greece, October 25--27, 2010, Revised Selected Papers}, proceedings_a={BROADNETS}, year={2012}, month={10}, keywords={QoS provisioning Optical Burst Switching Cloning}, doi={10.1007/978-3-642-30376-0_29} }- Shavan Askar
Georgios Zervas
David Hunter
Dimitra Simeonidou
Year: 2012
A Novel QoS Provisioning Scheme for OBS Networks
BROADNETS
Springer
DOI: 10.1007/978-3-642-30376-0_29
Abstract
This paper presents Classified Cloning, a novel QoS provisioning mechanism for OBS networks carrying real-time applications (such as video on demand, Voice over IP, online gaming and Grid computing). It provides such applications with a minimum loss rate while minimizing end-to-end delay and jitter. ns-2 has been used as the simulation tool, with new OBS modules having been developed for performance evaluation purposes. Ingress node performance has been investigated, as well as the overall performance of the suggested scheme. The results obtained showed that new scheme has superior performance to classical cloning. In particular, QoS provisioning offers a guaranteed burst loss rate, and delay unlike existing proposals for QoS implementation in OBS which use the burst offset time to provide such differentiation. Indeed, classical schemes increase both end-to-end delay and jitter. It is shown that the burst loss rate is reduced by 50% reduced over classical cloning.