Priority encoding of video data over ATM

We present a software prototype of a cell-loss resilient scheme for data with different priorities transmitted over ATM networks. The levels of protection provided by the scheme depend on the priority level assigned to each data segment by the user. The priority level is a function of the expected cell loss rate during transmission. The developed prototype can sustain a continuous throughput between transmitting and receiving sides at tens of kilobytes per second. Its immediate application would be useful for the real-time transmission of a scalable video stream which can be efficiently split into multilayers with different priorities.