Credible and Economic Multimedia Service Optimization in Cloud Network

The cloud network has the advantages in efficiently offloading the large-scale Internet traffic, which is considered as a promising architecture to provide the satisfactory multimedia services for mobile users. However, most current studies lack the joint consideration of economic and security of services in cloud network. In this paper, a novel multimedia service optimization mechanism is proposed hereby to meet the user's requirements mentioned above while guaranteeing the reliability of service. Firstly, a credible scheme is designed to help the mobile users distinguish the reliable cloud providers; Moreover, a noncooperative Stackelberg game model is presented to maximize the profit of each party; Furthermore, the equilibrium of this game is achieved by the methods of backward induction and gradient descent; Finally, extensive simulations demonstrate that our solution has efficient performance in terms of secure service ratio, utility, pricing and service requirement.