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Survivability of wavelength-routed optical burst-switched networks with guaranteed IP services

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1 Author(s)
Kozlovski, E. ; Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK

The paper discusses the problem of ensuring QoS performance in wavelength-routed optical burst-switched (WR-OBS) networks under single link failures. The provision of IP services run over high-speed optical backbones should be resilient to faults in the network, hence the importance of a WR-OBS survivability investigation. A failure-compensating scheduling, residing in the WR-OBS control node, is proposed and analysed in terms of burst blocking probability and burst scheduling delay increment. The WR-OBS wavelength over-provisioning for maintaining guaranteed QoS is also studied as a function of network physical connectivity.

Published in:

Transparent Optical Networks, 2003. Proceedings of 2003 5th International Conference on  (Volume:1 )

Date of Conference:

29 June-3 July 2003