Dependable multi-tenant infrastructures supporting cloud and mobile cloud services

Abstract

This paper focuses on the design of dependable Mobile Optical Virtual Networks (MOVNOs) to enable multi-tenancy over converged wireless, optical and computational infrastructures supporting cloud and mobile cloud services. Dependability is defined as the MOVNO's ability to offer resilience in case of network or computing resource failures and security guarantees in terms of isolation between MOVNOs that share the common physical infrastructure. The VI planning optimization objective is to minimize the overall energy consumption satisfying at the same time specific end-to-end delay constraints. To address these issues, together with the uncertainty introduced by the mobility of the end devices we proposed a MOVNO planning scheme based on non-linear programming. Our modeling results illustrate interesting trade-offs between the overall energy consumption of the MOVNOs, the mobility of the end-devices, as well as the dependability impact on the energy consumption and the utilization of the infrastructure resources.