基于覆盖网络的多路径数据传输系统

A Multi-path Data Transmission System Based on Overlay Network

针对当前Internet转发数据包模式导致的较多不确定因素这一问题,实现了一种基于覆盖网络的多路径数据传输系统。通过在Internet的不同位置部署用于转发数据的中转服务器,形成分布式的中转服务器覆盖网络,使发送端能经由每一个独立的中转服务器并发地以多路径传输方式将待发送数据传送至接收端。实验结果表明,与当前的直接传输的模式相比,该系统能有效地提高文件传输效率。通过测量该系统的发送端与中转服务器之间的可用带宽值并应用于中转服务器的选择,还能进一步提高大文件的传输效率。

In order to solve the problem that there exist many uncertain factors introduced by current Internet forwarding packets mode, we implemented a multi - path data transmission system based on overlay network. By deploying transfer servers in the Internet to forward data, the overlay network is formed by distributed transfer servers. Thus, the sender is managed to transmit data to the receiver via independent transfer servers simultaneously. As the results show, compared with direct data transfer mode, this system can improve file transmission rate effectively. If transfer servers are selected by measuring available bandwidth value between the sender and the transfer servers, transmission efficiency of large files can be further improved.