Minimum mean square error non-linear transceiver design based on imperfect channel state information

作者：Geng, Xuan^*; He, Di

来源：Journal of Shanghai Jiaotong University, 2012, 46(11): 1806-1810+1815.

• Imperfect channel state information
• Linear transceiver
• Minimum mean square error (mse)
• Minimum mean square errors
• Non linear
• Precoding matrix
• Spatial correlations
• Tomlinson-Harashima precoding

A design method for nonlinear transceiver with Tomlinson-Harashima precoding(THP) structure was proposed based on minimum mean square error (MSE) criterion, when the transceiver knows the imperfect channel state information (CSI) for multiple-input multiple-output (MIMO) system. The MSE is derived firstly, and then transformed as the function of only one variable being precoding matrix. By minimizing the lower bound of MSE using optimization and matrix theory, the optimal precoding matrix and the closed-form of the lower bound are obtained, so that the total non-linear transceiver matrices are solved. The simulation results show that the proposed method outperforms the existing linear transceiver and the classic THP transceiver.

• 出版日期2012
• 单位上海交通大学; 上海海事大学