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Peer-to-Peer (P2P) networks have emerged as one of the most promising approaches to improve the scalability of Video-on-Demand (VoD) service over Internet. However, despite a number of architectures and streaming protocols have been proposed in past years, there is few work to study the practical performance of P2P-based VoD service especially in consideration of real user behavior which actually...
While pull-based peer-to-peer (P2P) live streaming prevails in recent years, an important but less studied problem is security. To achieve security, confidentiality of the streaming data is essential and the corresponding key management scheme must scale well without degrading the system performance too much. In this paper, we thus propose P2P-SMP -a novel secure multicast protocol specifically designed...
In this paper, we describe the design and implementation of a peer-to-peer based live video streaming system called Gridmedia. Gridmedia organizes the nodes into an unstructured overlay, and adopts a novel push-pull streaming mechanism to fetch data from the partner nodes. The pull mode in the unstructured overlay can work well with the high churn rate in P2P environment while the push mode can efficiently...
IPTV is highly advocated in recent years. Today, the growth of the residential users makes it possible to broadcast live video content through global Internet to a great population of end users. In this paper, we mainly describe the design and deployment experiences of a peer-to-peer (P2P) based IPTV system called Gridmedia since P2P is universally recognized as a scalable and cost-effective means...
In this paper, we emphasize salient experiences on peer to peer based live video streaming. First, we describe a two-layer overlay structure and a multi-sender based transmission algorithm to broadcast video programs. Although both numerical analysis and practical data reveal feasibility to support nearly 600 concurrent users in 500kbps streaming delivery, the tremendous workload imposed upon structure...
We present a novel single source peer-to-peer multicast architecture called GridMedia which mainly consists of 1) multi-sender based overlay multicast protocol (MSOMP) and 2) multi-sender based redundancy-retransmitting algorithm (MSRRA). The MSOMP deploys mesh-based two-layer structure and groups all the peers into clusters with multiple distinct paths from the source root to each peer. To address...
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