Cooperation Stimulation Strategies for Peer-To-Peer Wireless Video Streaming Social Networks

Human behavior analysis in video sharing social networks investigates the impact of human dynamics on video sharing systems and has become an emerging research area. Users watching video streaming in the same wireless network share the same limited bandwidth of backbone connection to the Internet, thus they might want to cooperate with each other to obtain better video quality. These users form a wireless video streaming social network. Every user wishes to watch video with high quality while paying as little as possible cost to help others. This paper focuses on providing incentives for user cooperation. We propose a game-theoretic framework to model user behavior and to analyze the optimal strategies for user cooperation simulation in wireless video streaming. We first analyze the Pareto optimality and the time-sensitive bargaining equilibrium of the two-person game. We then extend the solution to the multiuser scenario. We also consider potential selfish users’ cheating behavior and malicious users’ attacking behavior and analyze the performance of the proposed strategies with the existence of cheating users and malicious attackers. Both our analytical and simulation results show that the proposed strategies can effectively stimulate user cooperation, achieve cheat free and attack resistance, and help provide reliable services for wireless video streaming applications.