System and method for implementing video-on-demand with peer-to-peer network technique

Abstract

The invention relates to a system for realizing video-on-demand by using a peer-to-peer network technology and a method thereof, wherein, a central media server and a central directory server of the system are connected with a router of a metropolitan area/wide area network; an edge media server is connected with an edge router which is linked up with the metropolitan area/wide area network and an access network so as to form a content delivery network based on P2P; an edge directory server is connected with the edge router with which the edge media server is connected and a home media terminal is connected with the edge router with which the edge media server is connected through the access network, which forms a video-on-demand network based on the P2P. The method of the system for realizing the video-on-demand by using the peer-to-peer network technology and the method thereof comprises the steps: the home media terminal firstly requests and downloads data in a way of the P2P from an edge P2P area, when the requested data is not in the edge P2P area, corresponding data is downloaded and supplied to the home media terminal by the edge media server in a central P2P area. The system for realizing the video-on-demand by using the peer-to-peer network technology and the method thereof have the advantages of low cost and strong expandability; with the increase of the users, the pressure bore by the server is decreased.

Description

technical field [0001] The invention belongs to the field of network technology, in particular, the invention relates to a system and method for realizing video on demand on the Internet and other data networks by using peer-to-peer network technology. Background technique [0002] It is a huge challenge for an operator to provide a video on demand (Video On Demand, VOD for short) service on the network, especially a VOD service within a metropolitan area (or even a wide area). The source of video programs with standard definition or even high definition quality is very large. Although the gradual maturity of video compression standards MPEG-4 and H.264 has greatly reduced the storage capacity required for video programs, the largest number is still video in MPEG-2 format. programme. At the same time, in order to provide large-scale VOD services in metropolitan areas or wide areas, the bottleneck of network bandwidth is a serious problem that must be faced. [0003] At pre...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and solve the problems of high cost, low service quality and poor scalability...

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