Design of Group Precoding for MU-MIMO Systems with Exponential Spatial Correlation Channel

Design of Group Precoding for MU-MIMO Systems with Exponential Spatial Correlation Channel

Blog Article

In this paper, a low-complexity precoding algorithm is proposed to reduce the computational complexity and improve the performance for MU-MIMO systems under exponential spatial correlation channel conditions.The proposed precoders are designed consisting of two components: The first one minimizes the interference among neighboring user groups, while the Shark Cartilage second one improves the system performance.Numerical and simulation results show that the proposed precoders have remarkably lower computational complexities than their existing LC-RBD-LR-ZF and BD counterparts.

Besides, BER performances of the proposed B12 DROPS 1000MCG precoders are asymptotic to that of LC-RBD-LR-ZF precoder at the low SNR region and better than that of LC-RBD-LR-ZF precoder at the high SNR region.Simulation results also show that the performance of the proposed algorithms is significantly improved compared to the BD algorithm in an exponential spatial correlation channel.