Adaptive Rate Allocationfor Unequal Budget Images Transmissionover Time-Varying BSC Channels

An efficient rate allocation algorithm for the progressive transmission of multiple images with unequal budgets over time-varying BSC channels is proposed. The algorithm is linear-time in the number of transmitted packets per image and its rate allocation solution for each image can achieve a performance equal or very close to the distortion optimal solution for that image. Our simulations for the transmission of images, encoded by embedded source coders, over the binary symmetric channel (BSC) show that with very low complexity the proposed algorithm successfully adapts the channel code rates to the changes of the channel parameter

Keywords:

progressive transmission , Joint Source Channel Coding , time-varying channels