Joint source coding-transmission power control for H.264 video delivery

In this work, we consider the selection of complexity and rate controlling source coding parameters jointly with transmitter power. Power invested during source encoding can potentially improve coding efficiency while transmission power determines the capacity of the delivery channel. A complexity scalable source encoder is a useful tool during overall system optimization as it allows flexible allocation of resource between the encoder and transmitter. By using models of complexity-rate-distortion relationships derived experimentally from our encoder, we illustrate through simulation the value of a complexity scalable encoder when the video encoder and transmitter have to be optimized jointly under power constraint.