Heterogeneous wireless peer-to-peer (P2P) network file sharing system and file transmission acceleration method

Abstract

The invention discloses a heterogeneous wireless peer-to-peer (P2P) network file sharing system and a file transmission acceleration method. In a heterogeneous wireless fusion network access environment, factors such as an access network type, a terminal node downloading rate, an inter-node network distance and round-trip time are comprehensively combined for the characteristics of a fusion network, and a seed node is selected by utilizing an optimization theory in engineering to provide an acceleration method for a file sharing service of a terminal on the basis of an extended P2P-Bittorrent protocol. A proper seed node is selected, and a network service with high data traffic and a heavy load is transferred into an idle network, so that the load balance of the whole network structure is realized, and the resource efficiency of a plurality of heterogeneous fusion networks is optimized.

Description

technical field [0001] The present invention relates to a multi-mode wireless terminal file sharing system and an accelerated file transmission method under the coverage environment of multiple heterogeneous fusion networks, especially relates to a P2P-Bittorrent protocol, which is applicable to WLAN, 3G / LTE, Ad hoc networks and future various A novel wireless access network file sharing system and an accelerated file transfer method. Background technique [0002] In recent years, wireless mobile access technology has developed rapidly. Wireless local area network (WLAN) represented by 802.11 series, 3G / HSPA / LTE represented by CDMA2000, WCDMA and TD-SCDMA have been applied on a large scale, and self-organizing network Ad hoc With the continuous research and development of technology, the future mobile Internet will be an open heterogeneous wireless network system with multiple access networks coexisting. [0003] The main business based on the mobile Internet has shifted fr...

AI Technical Summary

Problems solved by technology

Among them, it is very critical for the Tracker server to select an effective peer node set, especially in the mobile Internet under the mobile terminal access status dynamic join and exit, in order to maintain the status information of dynamic nodes, it will increase the burden on the Tracker server; The network topology is grouped by logical location, and the nodes in the group are preferentially selected. However, since the node network topology does not correspond to the physical location topology, if the nodes with the closest distance in the network topology are far apart in the actual location, the stability of the node will also be affected. At the same time, it will increase the data transmission burden of the mobile core network. None of the above methods can solve the problem of Tracker’s effective screening of nodes, so that the sharing rate can be increased.

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