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Perceptual visual quality guarantee is of vital concern for the P2P streaming systems. One of the challenging issues for assuring overall video quality in mesh-based P2P streaming is to design an effective media chunk scheduler. To the best of our knowledge, there is still a lack of studies on integrating video characteristics into P2P media chunk scheduler. Video packets do not contribute evenly...
We investigate two important problems in media delivery via active network agents. First, we consider streaming multiple video assets over a shared backbone network through an intermediate proxy-server to a set of receiving clients. The proxy is located at the junction of the backbone network and the last hop to each of the clients and coordinates the delivery of the videos from the origin media server...
A core issue that confronts peer-to-peer streaming media application is to efficiently schedule the propagation of data segment. This paper presents a peer-to-peer scheme based on principal-agent model (PAM) that some peers play the role of agent, to gather the information of principal peers in its local physical network, which can be used to optimizing of data scheduling. We designs and implements...
The efficient scheduling of streaming data delivery in a peer-to-peer (P2P) network is a hard problem due to the Internet's lack of support for resource allocation and performance guarantees. In particular, the bandwidth resources available to a peer is constantly in flux and the future bandwidth availability is very difficult, if not impossible, to predict accurately. This work proposes to tackle...
A comprehensive-factors-based (CFB) scheduling algorithm is proposed for peer-to-peer media streaming. In CFB, considering the number of chunks' suppliers and urgency, a priority is defined for each data chunk and the neighbours' bandwidth is effectively evaluated. A peer requests chunks from neighbors according to priorities as well as bandwidth. Simulation results show that the proposed CFB scheduling...
This Paper introduces a new model of P2P streaming media broadcasting system-PPSLS (P2P Streaming Live System) which adopts a kind of hybrid structure which comprises the advantages of Tree model and Mesh model structure. The PPSLS exploits the advantage of easy controlling the nodes of the multicast tree based on the Tree model structure. At the same time, it also combines the method of using multiple...
Any Peer-to-Peer (P2P) streaming system consists of two distinct but related components: overlay construction and piece scheduling. Besides building an efficient overlay structure for data stream, scheduling the sending order is also important for the stream quality. The aim of this paper is to describe state-of-the-art strategies that allow for deployment of efficient streaming data scheduling in...
DRM is becoming more and more important for P2P live streaming. In this paper, a manageable overlay network architecture with DRM, is proposed for live streaming. The system consists of register server, index servers, supernodes and peers. The register server authorizes the peers, assign the key and index server list; The index server acts as the centralized index server to store the peer list, program...
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