Design of rate control for wireless video telephony applications

摘要

We propose a design of a rate control algorithm for low-delay video transmission over wireless channels. Ourobjective is to meet delay constraints and to make sure that the decoder buffer does not overflow or underflow.We approach this problem analytically, by studying the leaky bucket model in the variable rate transmissionscenario, and deriving sufficient conditions for meeting our objective. We then employ these conditions in thedesign of the rate control algorithm. We report results obtained by using this algorithm with an MPEG-4AVC/H.264 encoder and LTE channel simulator as a test platform.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.