Priority-based R2CP for multipoint-to-point video streaming

In a P2P network, the same content can derive from multiple sources, which is to say that there can be multiple incomings. As RTP used popularly in video streaming cannot handle multipoint-to-point data streams, R²CP was proposed to resolve this drawback. However, R²CP does not discriminate the data packets which are critical to the quality of video streaming, so there is a great risk that the critical data packets may be dropped when network is congestion. This paper^dagger proposes P-R²CP (Priority-based R²CP) to effectively decrease the loss ratio of critical data packets in multipoint-to-point video streaming. Experimental results indicate that, as less critical data packets are dropped, the proposed method can maintain the good playback quality.