Optimum transmit architecture of a MIMO system under modulus channel knowledge at the transmitter

@article{Payaro2004OptimumTA,
  title={Optimum transmit architecture of a MIMO system under modulus channel knowledge at the transmitter},
  author={T. I. Payaro and Xavier Mestre and M. Lagunas},
  journal={Information Theory Workshop},
  year={2004},
  pages={418-422}
}
In this paper, we study the ergodic capacity of a multiple input multiple output (MIMO) uncorrelated flat fading channel with perfect channel state information at the receiver and partial channel state information at the transmitter. We focus our attention on the case where the transmitter is informed only with the modulus of the channel matrix coefficients. First, we prove that a simple power allocation strategy among transmitting antennas is the optimal scheme, in the sense that is a capacity… CONTINUE READING
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