Performance Analysis of an Integrated Video/Data Transport Mechanism with Built-in Congestion Control

We consider an integrated video/data multiplexer where conference video and data file transfer services are provided. The link bandwidth is divided into a number of fixed bandwidth channels. The video signals are encoded in such a way that the coded information is transmitted over multiple channels, where the primary channel transmits the highest priority information for good quality video, and the remaining channels, with decreasing priorities, transmit information for enhancing the quality of the video. Due to the unique video encoding scheme, an existing video call may relinquish use of one or more low priority channels to make room for more video calls if congestion occurs.