Efficient and flexible inter-overlay scheduling of media streams for multi-channel P2P streaming

Existing studies on channel bandwidth imbalance in P2P multi-channel streaming systems have been exclusively focused on inter-overlay bandwidth allocation. However, an efficient inter-overlay scheduling algorithm is still in lack for benefactors. To this end, this paper presents an inter-overlay substream scheduling algorithm compatible with various overlay meshes for active inter-overlay cooperation, through which the outbound bandwidth of benefactors can be efficiently utilized and bandwidth-deprived channels receiving benefactions can attain a better streaming quality. © 2012 IEEE.published_or_final_versionThe 2012 International Conference on Computing, Networking, and Communications (ICNC 2012), Maui, HI., 30 January-2 February 2012. In Proceedings of ICNC, 2012, p. 820-82

Scalable live streaming service based on interoverlay optimization

In order to provide scalable live streaming services, we propose an Interoverlay Optimization scheme, IOO. Instead of selecting better paths in the same overlay, IOO constructs efficient paths using peers in different overlays so as to 1) improve global resource utilization of peer-to-peer ( P2P) streaming networks, 2) assign resources based on their locality and delay, 3) guarantee streaming service quality by using the nearest peers, even when such peers might belong to different overlays, and 4) balance the load among the group (streaming overlay) members. We compare the performance of IOO with existing approaches through trace-driven simulations. Results show that IOO outperforms previous schemes in terms of resource utilization and the quality of service (QoS) of streaming services. The IOO scheme has been implemented in an Internet-based live streaming system, called AnySee. AnySee was successfully released in the summer of 2004 in the China Educational Research Network (CERNET). More than 60,000 users enjoy massive entertainment programs, including TV programs, movies, and academic conferences videos