We consider transmit beamforming for single-carrier frequency-division multiple access (SC-
FDMA) transmission over frequency-selective multiple-input multiple-output (MIMO)
channels. The beamforming filter is optimized for minimization of the sum of the mean-
squared errors (MMSEs) of the transmitted data streams after equalization. Here, MIMO
minimum mean-squared error linear equalization (MMSE-LE) is considered. We prove that
for SC-FDMA transmission eigen-beamforming diagonalizing the overall channel together …

We consider transmit beamforming for single-carrier frequency-division multiple access (SC-
FDMA) transmission over frequency-selective multiple-input multiple-output (MIMO)
channels. The beamforming filters are optimized for minimization of the sum of the mean-
squared errors (MSEs) of the transmitted data streams after MIMO minimum mean-squared
error linear equalization (MMSE-LE), and for minimization of the product of the MSEs after
MIMO MMSE decision-feedback equalization (MMSE-DFE), respectively. We prove that for …