MIMO系统训练信道估计的导频优化设计

Pilot Optimization Design for Training Channel Estimation in MIMO System

论文考虑了在莱斯信道和干扰下,多输入多输出(MIMO)系统中估计信道状态信息(CSI)可以处理以改善干扰抑制。论文分析如何通过设计导频矩阵来最大化估计性能,简化原始数据信号的检测。在接收机处对信道矩阵进行估计,对信道矩阵及其均方误差(MSE)的最小均方估计量(MMSE)表达式进行了数学推导。显示了接近最优的性能以及如何设计导频矩阵来优化估计性能。

This paper considers that estimation of channel state information(CSI)in multiple input multiple output(MIMO)systems can be processed to improve interference suppression under Rician fading and interference.It is analyzed how to design the pilot matrix to maximize the estimation performance and simplify the detection of the original data signal in this paper.At the receiv?er end,the channel matrix is estimated,and the mathematical derivation of the MMSE expression of channel matrix and its mean square error(MSE)is given.All of these show that the performance is near optimal,and how to design the pilot matrix to optimize the estimation performance.