Peer-to-peer multicasting inspired by huffman coding

Stringent qos requirements of video streaming are not addressed by the delay characteristics of highly dynamic peer-to-peer (p2p) networks. to solve this problem,a novel locality-aware method for choosing optimal neighbors in live streaming multicast p2p overlays is presented in this paper. to create the appropriate multicast tree topology,a round-trip-time (rtt) value is used as a parameter distinguishing peers capabilities. the multicast tree construction is based on the huffman source coding algorithm. first,a centrally managed version is presented,and then an effective use of a distributed paradigm is shown. performance evaluation results prove that the proposed approach considerably improves the overlay efficiency from the viewpoint of end-users and content providers. moreover,the proposed technique ensures a high level of resilience against gateway-link failures and adaptively reorganizes the overlay topology in case of dynamic,transient network fluctuations. © 2013 bartosz polaczyk et al.