Semiunitary Precoding for Spatially Correlated MIMO Channels

@article{Raghavan2011SemiunitaryPF,
  title={Semiunitary Precoding for Spatially Correlated MIMO Channels},
  author={Vasanthan Raghavan and Akbar M. Sayeed and Venugopal V. Veeravalli},
  journal={IEEE Transactions on Information Theory},
  year={2011},
  volume={57},
  pages={1284-1298}
}
The focus of this paper is on spatial precoding in correlated multiantenna channels where the number of data-streams is adapted independent of the number of transmit antennas. Towards the goal of a low-complexity implementation, a statistical semiunitary precoder is studied where the precoder matrix evolves fairly slowly with respect to the channel evolution. While prior work on statistical precoding has focussed on information-theoretic limits, most of these computations result in complicated… CONTINUE READING
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