Low-Complexity LMMSE-Based MIMO-OFDM Channel Estimation Via Angle-Domain Processing

@article{Huang2007LowComplexityLM,
  title={Low-Complexity LMMSE-Based MIMO-OFDM Channel Estimation Via Angle-Domain Processing},
  author={Li Huang and Jan W. M. Bergmans and Frans M. J. Willems},
  journal={IEEE Transactions on Signal Processing},
  year={2007},
  volume={55},
  pages={5668-5680}
}
In many situations, multiple-input-multiple-output with orthogonal frequency division multiplexing (MIMO-OFDM) channels tend to be spatially correlated due, for example, to limited scattering. Prior knowledge of this channel spatial correlation and the channel frequency correlation can be exploited by using the linear minimum-mean-square-error (LMMSE) technique. However, the complexity of the 2-D LMMSE technique, which fully utilizes both the channel spatial and frequency correlation is quite… CONTINUE READING