SALSA: Super-Peer Assisted Live Streaming Architecture

In P2P live streaming, free-riders which do not upload data but only download them are still present. Since a greater number of viewers can generate more profit, the streaming server wants to serve the free-riders also. In this paper, we have proposed a novel P2P live streaming system, called super-peer assisted live streaming architecture (SALSA). In SALSA, super-peers, which have high upload bandwidth and serve many free-riders, are eligible to receive an incentive reward that is the ability to watch high quality videos. The server places high-quality-view-tickets at auction to make the super-peers serve free-riders more efficiently. We have proposed novel auction mechanisms and a heuristic algorithm. The simulation results showed that the proposed scheme has comparable performance to the optimal form and are able to differentiate the super-peers´ video quality commensurate with their contribution level.