Multi-channel TCP connections with congestion feedback for video/audio data transmission

摘要

A method of transmitting data over a communication network has congestion feedback. The method includes a sending application such as a video conferencing program opening a plurality of TCP connections. The sending application provides data packets to an encapsulation module, which appends a TCP header to each data packet. For each encapsulated data packet, a packet sender module selects the least congested of the plurality of TCP connections for transmitting the packet. A packet capture library taps into the network stack prior to the TCP driver to calculate the available window size reflecting a degree of congestion for each of the plurality of TCP connections. A monitor module monitors the plurality of TCP connections, and provides the congestion information to the packet sender module.