Researches on Content Delivery Policies for Interactive Video Network

Interactive video network, such as Video-on-Demand (VoD) or IPTV system, is the primary part of the Next Generation Network (NGN), in which the application server resources are typically shared by multiple end users. Content delivery policy is one of the most important issues in such kind of network due to the huge storage and bandwidth required by video streaming. While the deployment of commercial interactive video network, we developed a series of content delivery policies, among them the mathematical definitions of object popularity, the measure methods for the inequality of object popularity, and a Dynamic-Resource-Allocation (DRA) based flash crowd mitigation algorithm are presented in this paper. The simulation results show that our researches are helpful to deploy QoS guaranteed video network in a cost-effective way.