Pre- and Post-coding for Capacity Enhancement in MIMO Systems

A linear scheme at the transmitter (pre-coder) and the receiver (post-coder) is proposed to improve the performance of MIMO systems under a specific configuration for transmitting and receiving antennas over fading channels. This is achieved by generating a linear pre- and post-coder matrix that depends on the correlation matrix of the channel state information (CSI). Through MATLAB simulation, the results show that the use of appropriate coder matrix enhances the MIMO channel capacity and reduces the sensitivity on CSI.