MIMO capacity with channel uncertainty: does feedback help?

@article{Yoo2004MIMOCW,
  title={MIMO capacity with channel uncertainty: does feedback help?},
  author={Taesang Yoo and Eunchul Yoon and Andrea J. Goldsmith},
  journal={IEEE Global Telecommunications Conference, 2004. GLOBECOM '04.},
  year={2004},
  volume={1},
  pages={96-100 Vol.1}
}
We investigate ergodic capacities and optimal transmitter strategies in Rayleigh fading multiple input multiple output (MIMO) channels with spatial correlation, when there exist channel uncertainties arising from the combined effect of channel estimation error and limited feedback. We consider both covariance feedback and instantaneous feedback, and formulate optimization problems that determine the capacities and optimal transmitter designs for both cases. In the high SNR regime, the optimal… CONTINUE READING

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