Research On Content Parallel Download Technology Based On P2P Technology

Internet user was restricted by the bandwidth, so we can only transmit some small files and programmes through the internet. In the recent years, the BroadBand technology have been developed, and more and more people browse internet using this technology. And people could transmit some big files,such as large software, multimedia files through the internet. But the bandwidth is so limited for transforming these big files. because of itself's limitation, the tradition center server can't satisfy the people's requires. But now, the p2p technology converted the mode of communication and transmition of information.This article firstly analyses the CDN mode and the BitTorrent(BT) protocol, which is one of P2P mode, applying on content download.Both of two modes are particular analysed, including the main modules and the algorithmic. After that the compare of two system is performed. Then,the article analyse the BT transmission process, aim at the speed of down and up of ADSL is not matching, advance a multiuser self-adapt download mechanism. Using this mechanism ,we could improve the bandwidth utilize rate of down route, and also could save the time of download.The article analyes the stream media based on P2P technology, and advance a new method about video data transmition, which is applying the multiuser self-adapt download mechanism to the P2P stream media.After of all, we do the simulation experimentation, get the right result which matching the mechanism.