CMPVoD: A Cluster Mesh- based Architecture For VoD Streaming over Hybrid CDN-P2P Networks

In current Internet, most of the traffic dedicated to video streaming applications. In recent years, Peer-to-Peer (P2P) streaming approach has gained more attention, due to the high cost of providing the required bandwidth for a large number of users in Client-Server model. Mesh-based peer-to-peer video streaming is a robust approach which recently employed in many multimedia networking applications. Also, these systems provide robustness against peer churn with low maintenance complexity, but these systems suffer from issues related to the overhead and sub-optimal neighbor selection. In this paper, the challenges of Video-on-Demand (VoD) streaming will be addressed to design CMPVoD, a new cluster mesh-based architecture for hybrid CDN-P2P VoD streaming with VCR functions. In the proposed architecture, peers are organized into clusters based on their playback features. So peers with more upload bandwidth in the cluster are gradually located closer to the video servers. Another interesting feature of CMPVoD is using of adaptive buffer-map exchange that reduces bandwidth overhead and increases the availability of video chunks. The performance of CMPVoD evaluated in different network conditions. The results show that CMPVoD efficiently reduces the overhead and achieves a reasonable quality of service in different network conditions.