Rate and Power Allocation for Layered Transmission With Superposition Coding

@article{Etemadi2007RateAP,
  title={Rate and Power Allocation for Layered Transmission With Superposition Coding},
  author={Farzad Etemadi and Hamid Jafarkhani},
  journal={IEEE Signal Processing Letters},
  year={2007},
  volume={14},
  pages={773-776}
}
We consider layered transmission of a Gaussian source over a quasi-static fading channel. A broadcast strategy is used in which multiple layers of source data are superimposed, and each layer is allocated a different power and transmission rate. For a multiple-antenna system where either the transmitter or the receiver has a single antenna, we propose a low-complexity algorithm for minimizing the expected end-to-end distortion of the received signal. Numerical results for a Rayleigh fading… CONTINUE READING