Tradeoffs between energy consumption and QoS in mobile grid

Authors:
Chunlin Li;Layuan Li
Affiliations:
Department of Computer Science, Wuhan University of Technology, Wuhan, People's Republic of China 430063;Department of Computer Science, Wuhan University of Technology, Wuhan, People's Republic of China 430063
Venue:
The Journal of Supercomputing
Year:
2011

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Abstract

Mobile grid, which combines grid and mobile computing, supports mobile users and resources in a seamless and transparent way. However, mobility, QoS support, energy management, and service provisioning pose challenges to mobile grid. The paper presents a tradeoff policy between energy consumption and QoS in the mobile grid environment. Utility function is used to specify each QoS dimension; we formulate the problem of energy and QoS tradeoff by utility optimization. The work is different from the classical energy aware scheduling, which usually takes the consumed energy as the constraints; our utility model regards consumed energy as one of the components of measure of the utility values, which indicates the tradeoff of application satisfaction and consumed energy. It is a more accurate utility model for abstracting the energy characteristics and QoS requirement for mobile users and resources in mobile grid. The paper also proposes a distributed energy---QoS tradeoff algorithm. The performance evaluation of our energy---QoS tradeoff algorithm is evaluated and compared with other energy and deadline constrained scheduling algorithm.