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A Novel QoS provisioning Scheme for OBS networks

Askar, Shavan K A and Zervas, Georgios S and Hunter, David K and Simeonidou, Dimitra (2010) 'A Novel QoS provisioning Scheme for OBS networks.' In: UNSPECIFIED, (ed.) Proceedings of Broadnets 2010. Institute for Computer Sciences, Social Informatics and Telecommunications Engineering (ICST).

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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, delay and expected value of jitter, 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.

Item Type: Book Section
Additional Information: 7th International ICST Conference on Broadband Communications, Networks, and Systems, Broadnets. October 25-27, 2010 Athens, Greece
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Jim Jamieson
Date Deposited: 31 Aug 2012 09:07
Last Modified: 31 Aug 2012 09:07

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