Cakareski, ZeljkoAhmed, NasirDhar, AdityaAazhang, Behnaam2007-10-312007-10-312002-05-202002-05-20Z. Cakareski, N. Ahmed, A. Dhar and B. Aazhang, "Multilevel coding of broadcast video over wirless channels," 2002.https://hdl.handle.net/1911/19754Conference PaperThis paper addresses the problem of broadcasting video over wireless channels. In such a scenario, different end users perceive the video signal through channels with different quality. We propose a source-channel coding system, that partitions the video data in such a way that maintains a baseline quality of service even for the user with the worst channel. The system consists of a layered source representation that is robust to error propagation effects, combined with a multilevel channel coding scheme that provides an unequal error protection to the different layers of the encoded video. Experimental results show that our system is robust and guarantees a baseline quality of service to all users over a wide range of channel conditions.engBroadcast videoMultilevel codingChannel CodingUEPConference paperBroadcast videoMultilevel codingChannel CodingUEP