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Guaranteeing SLA availability in telecommunications networks

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2 Author(s)
Gonzalez, A.J. ; Centre for Quantifiable Quality of Service in Commun. Syst., Norwegian Univ. of Sci. & Technol., Trondheim, Norway ; Helvik, B.E.

Network operators have to allocate connections fulfilling availability requirements stipulated in SLAs for a finite interval. However, modeling accurately the transient solution of repairable systems is still an open challenge. We study the SLA penalty scheme and propose a model to allocate connections with SLA requirements, maximizing the operator profit through a two-stage stochastic program. Our model considers the stochastic behavior of network components, correlation between failure/repair processes, the SLA finite duration, and the flexibility to allocate or reject a connection based on its commercial convenience. The model is designed for three different protection schemes: unprotected, dedicated backup and shared backup.

Published in:

Telecommunications Network Strategy and Planning Symposium (NETWORKS), 2012 XVth International

Date of Conference:

15-18 Oct. 2012