CPPStreaming: A Cloud-Assisted Peer-to-Peer Live Streaming System

Abstract

Although P2P has been the main solution for live streaming distribution, the dynamic restricts the performance. Cloud computing is a new promising solution, which could be introduced as a supplement for P2P. It is a good direction on combining cloud computing and P2P to leverage the live streaming system performance. However, for seeking the design of the hybrid system architecture and deployment for good transmission performance, there has been no mature and integral solution so far. In this paper, we design a cloud-assisted P2P live streaming system called CPPStreaming by combing two state-of-the-art video distribution technologies: cloud computing and P2P. We introduce a two layer framework of CPPStreaming, including the cloud layer and P2P layer. As for the two layers respectively, we propose the corresponding formation and evolution method. For the system deployment, we formulate the leasing cloud servers strategy for an optimal problem and propose a greedy algorithm based on the heuristic solution for solving it. The experiment results show that our system can out perform two classical P2P live streaming systems, in terms of the transmission performance and the reduction of cross-region traffic.