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2008

Elastic service availability: utility framework and optimal provisioning

8 years 3 months ago
Elastic service availability: utility framework and optimal provisioning
Service availability is one of the most closely scrutinized metrics in offering network services. It is important to cost-effectively provision a managed and differentiated network with various service availability guarantees under a unified platform. In particular, demands for availability may be elastic and such elasticity can be leveraged to improve cost-effectiveness. In this paper, we establish the framework of provisioning elastic service availability through network utility maximization, and propose an optimal and distributed solution using differentiated failure recovery schemes. First, we develop a utility function with configurable parameters to represent the satisfaction perceived by a user upon service availability as well as its allowed source rate. Second, adopting Quality of Protection [1] and shared path protection, we transform optimal provisioning of elastic service availability into a convex optimization problem. The desirable service availability and source rate fo...
Dahai Xu, Ying Li, Mung Chiang, A. Robert Calderba
Added 27 Jan 2011
Updated 27 Jan 2011
Type Journal
Year 2008
Where JSAC
Authors Dahai Xu, Ying Li, Mung Chiang, A. Robert Calderbank
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