Enhancing Computing Power by Exploiting Underutilized Resources in the Community Cloud

With the advent of cloud computing, organizations tend to buy services from data centers of major cloud vendors. In contrast, community cloud computing as described gives an alternative way to reduce the costs or even obtain free resources, by sharing among communities. Because the utilization of computing resources in an organization is not constantly 100%, other members of the community can exploit these excessive resources. In this paper, the authors design algorithms for admission control and resource allocation, in order to deal with unreliably excessive computing resources.