Coordinated packet-level protection with a corruption model for robust video transmission

In this work, each packet is associated with a varying degree of signi cance based on the impact of its loss, which is estimated with a corruption model. For a compressed video stream, initial and propagation errors are rst described by the macroblock(MB)-based corruption model by taking into account error concealment, temporal dependency, and loop ltering. Next, at the packet-level, a corruption model using the relative priority index (RPI) is constructed by integrating MB-based models. With the RPIbased corruption model for each packet, coordinated delivery of packetized video over QoS networks is investigated. Finally, a per-packet optimization framework with unequal error protection (UEP) is realized to consider both end-to-end video performance and pricing. The performance of the proposed solution is veri ed with intensive simulations.