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  Embedded Peer-to-Peer Media Distribution
   
 

With the proliferation of Internet and media applications, content owners and service providers need to consider new IP based media distribution technologies. The embedded Peer-to-Peer media distribution technology is the only viable solution meeting the challenging requirements of mass media streaming over Internet.

In the client-server architecture, all contents are sent directly from server to client, whereas in the P2P architecture, majority of nodes receive content from peer nodes and then forward the content to other peers. By utilizing peer nodes' computational power and uplink bandwidth, the requirement on server hardware and its uplink bandwidth can be dramatically reduced.

Compared to open PC environment, an embedded device provides much tighter control over the system. This unique advantage can improve the content security and QoS. ASTRI's eP2P technology combines the power of P2P content distribution technology with the unique advantages of embedded devices to provide an efficient and secure platform for content distribution. It can be embedded into any consumer electronic devices or use as software on PCs for distributing media content over IP network.

 
 
ASTRI's eP2P technologies support both real-time IPTV streaming as well as video-on-demand applications. It has the following advantages:
 
Scalability: It can support thousands of users with low source-node bandwidth.
Efficiency: Users can start playing the media with low delay.
Robust to peer failure: Peer failure does not seriously affect the quality of received media.
Error recovery to source failure: When a source fails, peers can automate switch to other sources which broadcast the same channel.
User interactivity: Users can control any time the point of playing of the media.
 

P2P Real-time IPTV platform
The TV signal is first encoded and compressed in real time and streamed to distributed users in the Internet in a peer-to-peer manner. The P2P delivery mesh is computed automatically depending on network traffic condition and congestion.

P2P Movie-On-Demand platform
In this platform, peers may request any movies from the server at any time. As the movie is being played, users may interact with the movie using functionalities such as pause, stop, restart, jump forward/backward. Each peer has a finite buffer at hard disk to buffer the media for a certain period of time before discarding it. The buffered data can then be used to serve other peers in the system.