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In peer-to-peer video-on-demand (P2P VoD) streaming services, a video server load is reduced by peers who cache data of the viewed videos and send these data to other peers instead of the video server. Although FIFO is typically used as the caching algorithm, it is not efficient for using upload bandwidth of the peers because the peers can cache the data of unpopular videos and cannot be requested...
For poor quality of playback and low scalability in Video-on-Demand (VoD) system, it proposes combination of Content Distribution Network (CDN) and Peer-to-Peer (P2P) technologies applied in traditional C/S architecture. CDN server provides video initial data for user's fast playback and complementary streaming, P2P networks provides normally required video data downloaded in advance, the directory...
With widely application of Peer-to-Peer (P2P) file sharing technique, the P2P traffic occupies most of the current Internet bandwidth. Modeling the behaviors of P2P file sharing systems is important for designing and evaluating such systems. In this paper, we develop a novel model to character the dynamic behaviors of P2P sharing systems. States in microcosmic view are defined and used to describe...
Currently existing digital rights management systems employ appropriate methods for protecting contents. But these have high complexity and are too heavy to use in private broadcasting. This is not appropriate in IPTV system that will popularize the private broadcasting or UCC (user created contents). In this paper, we introduce a private broadcasting system based on P2P that prevents the illegal...
Recent few years, many p2p VoD softwares are widely applied through out the Internet, which gives us an opportunity to study user watching behavior of p2p VoD system at large scale. Many previous works on this area directly regard peer's information transmitting log such as buffer message as peer's watching behavior log. However, the effect of prefetch strategy is not considered. In this paper, we...
In this paper we propose an IEDL dynamic model for analyzing file diffusion in a peer-to-peer (P2P) file-sharing network. According to the principle of the P2P file diffusion system, each peer not only shares the downloaded parts of the file, but also downloads the needed parts of the file. This behavior is similar to the spreading of epidemic diseases. We apply the well-known medical model SEIR to...
Introduce the pigs' payoffs in society, analyse the negative infection of pigs' payoffs on the peer-to-peer network, base on usability, reliability, security and extensible speciality. And give a solution for the question base on the incentive mechanism. Finally, future works about the mechanisms discouraging pigs' payoffs in P2P networks are outlined.
One of the key questions in dimensioning a hybrid P2P content distribution system is that of the required infrastructure support in terms of server bandwidth. In this paper, we develop and propose simple mathematical models for analyzing and dimensioning hybrid peer-to-peer content distribution networks. We first use a deterministic fluid model to capture the essential peer and server dynamics within...
Peer-to-peer live streaming media systems are becoming more popular each day. As in file sharing P2P system, they are susceptible to content pollution attack. In this kind of attack, a peer alters the media content decreasing the perceived quality of the streaming. In this paper we evaluate the impact of pollution attack in P2P live streaming and we present two reputation system to avoid content polluted...
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