Rate-controlled redundancy-adaptive multiple description coding for video transmission over MIMO systems

This paper proposes a rate controlled redundancy-adaptive multiple description video coding method. The method adjusts the level of redundancy allocated to each macroblock based on an end to end distortion model that takes into account the effects of error propagation and concealment. Rate control at the macroblock level, ensures that the total bit-rate of all descriptions does not exceed the target rate. Results show that the proposed MDC codec can adapt very well to changing transmission conditions. When coupled with a MIMO architecture, performance gains of up to 14 dB were recorded over single description transmission at high packet error rates and no perceptible performance deficit at low packet error rates.