Date Added: Nov 2012
Cloud computing is an emerging computing paradigm that may change the way how information services are provisioned. Network virtualization plays a crucial role in a Cloud environment for virtualizing various network infrastructures as services. Therefore virtual network services should be integrated with Cloud service to form the composite Cloud service. However, little research has focused on modeling and optimization of network virtualization in Cloud service provisioning to end users. In this paper, the authors model the Cloud service provisioning feature in virtualization-based Cloud computing, and propose an exact algorithm for QoSaware service composition to optimize user's experiences for Cloud service access.