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Due to complicated implementation of IP multicast, application layer multicast has attracted the attention of researchers. Tree overlay has some challenges such as resiliency problems caused by peer churns and also network resources may not be efficiently used. Mesh overlay doesn't have such problems, but has a high delivery latency and overhead caused by pull mechanism. Using a hybrid mesh/tree overlay...
CommunityPVR is a software service that executes on the STB devices in a service provider's IP network. CommunityPVR forms a P2P network among set-top boxes to provide a resilient streaming service that can exponentially increase the choice of available shows.
The peer-to-peer solution provides a service model that is attractive for video-on-demand (VOD). The key idea of using P2P technology is to aggregate storage and bandwidths capacity of peers to alleviate workload on the source server. Compared with P2P live streaming, it is much more challenge for VOD due to peers' asynchronous request, different interested portion and support for VCR-like operation...
Providing scalable video services in a peer-to-peer (P2P) environment is challenging. In this paper we formulize the QoS (quality-of-service)-aware replication problem for P2P video-on-demand (VoD)systems, the goal of which is to satisfy access time deadlines for all nodes while maximize the probability of the successful block requests. A novel caching mechanism was proposed to achieve the goal, which...
There has been much work on multicast approaches for scalable systems. Periodic broadcasting (PB) is the most effective approach to building large-scale video-streaming services. But, one weakness of PB is the assumption of a homogeneous environment where all clients have the same resources such as reception bandwidth and storage. This assumption about clients is not reasonable in practical situations...
P2P (Peer-to-Peer) networking architectures represent scalable and cost-effective features. The media streaming technology leveraging P2P architecture is expected to be an attractive content delivery scheme and an alternative for IP multicast or content delivery systems requiring expensive network infrastructure and a large scale centralized cash storage systems. In this paper, we address the P2P...
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