Multicast and unicast real-time video streaming over wireless LANs

A. Majumda, D.G. Sachs, I.V. Kozintsev, K. Ramchandran, M.M. Yeung
2002 IEEE transactions on circuits and systems for video technology (Print)  
In this paper, we address the problem of real-time video streaming over wireless LANs for both unicast and multicast transmission. The wireless channel is modeled as a packet-erasure channel at the IP level. For the unicast scenario, we describe a novel hybrid Automatic Repeat reQuest (ARQ) algorithm that efficiently combines forward error control (FEC) coding with the ARQ protocol. For the multiple-users scenario, we formulate the problem of real-time video multicast as an optimization of a
more » ... imum regret cost function across the multicast user space. The proposed solution efficiently combines progressive source coding with FEC coding. We present a theoretical analysis of the unicast and multicast cases, as well as experimental results that demonstrate the performance advantages of the proposed algorithms over existing methods.
doi:10.1109/tcsvt.2002.800315 fatcat:kowlznq5h5agrfrs5espevx2qu