Beamforming for SC-FDMA Transmission Over MIMO ISI Channels With Decision-Feedback Equalization

Date Added: Feb 2010
Format: PDF

The authors consider transmit beamforming algorithms for Single - Carrier Frequency - Division Multiple Access (SC - FDMA) transmission over frequency - selective Multiple - Input Multiple - Output (MIMO) channels. The beamforming filters are designed for optimum performance of MIMO Minimum Mean - Squared Error Decision - Feedback Equalization (MMSE - DFE). It turns out that eigenbeamforming diagonalizing the overall channel is optimum, and in addition an optimum power allocation has to be performed which is similar in spirit to classical results for the optimum continuous - time transmit filter for linear modulation formats obtained by Yang and Roy.