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

Author

Kozlovski, Eugene

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK

Volume

1

fYear

2003

fDate

29 June-3 July 2003

Firstpage

148

Abstract

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.

Keywords

IP networks; delays; optical fibre networks; photonic switching systems; probability; quality of service; scheduling; telecommunication network reliability; telecommunication network routing; QoS performance; burst blocking probability; burst scheduling delay increment; control node; failure-compensating scheduling; guaranteed IP services; network physical connectivity; single link failures; survivability; wavelength over-provisioning; wavelength-routed optical burst-switched networks; wavelength-routed optical networks; Bandwidth; Delay effects; Educational institutions; Failure analysis; High speed optical techniques; Lighting control; Optical fiber networks; Quality of service; Routing; Signal restoration;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2003. Proceedings of 2003 5th International Conference on

Print_ISBN

0-7803-7816-4

Type

conf

DOI

10.1109/ICTON.2003.1264599

Filename

1264599