Cross-Layer Optimization for Video Communication Over AWGN Channel

Cheolhong An, Truong Q. Nguyen
2007 IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference  
In this paper, cross-layer optimization approach is applied from video coding to the physical layer through Media Access Control (MAC) layer. We mainly focus on resource allocation of source code rate and channel code rate with optimal MAC frame length. Therefore, elaborate mathematical models are derived to represent end-to-end distortion of video streams and 802.11a-like MAC and PHY with Automatic Repeat reQuest (ARQ) and Rate Compatible Punctured Convolutional code (RCPC) over Additive White
more » ... Gaussian Noise (AWGN) channel. These models are formulated as a convex optimization problem, and it is solved by the dual decomposition method. From a numerical example, significant reduction of overall distortion can be achieved.
doi:10.1109/glocom.2007.635 dblp:conf/globecom/AnN07 fatcat:kmqymplo7befdaxfng6iqqltqu