Transmitter optimization and optimality of beamforming for multiple antenna systems

  title={Transmitter optimization and optimality of beamforming for multiple antenna systems},
  author={Syed Ali Jafar and Andrea J. Goldsmith},
  journal={IEEE Transactions on Wireless Communications},
We solve the transmitter optimization problem and determine a necessary and sufficient condition under which beamforming achieves Shannon capacity in a linear narrowband point-to-point communication system employing multiple transmit and receive antennas with additive Gaussian noise. We assume that the receiver has perfect channel knowledge while the transmitter has only knowledge of either the mean or the covariance of the channel coefficients. The channel is modeled at the transmitter as a… CONTINUE READING
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