基于Kapteyn级数展开的低复杂度大规模MIMO信道估计
发布时间:2018-04-21 04:11
本文选题:信道估计 + Taylor级数 ; 参考:《电信科学》2016年12期
【摘要】:为降低大规模MIMO信道估计的复杂度,提出一种基于Kapteyn级数展开的信道估计方法。通过Taylor级数把协方差逆矩阵展开,从而降低信道估计的复杂度。为提高Taylor-MMSE估计的收敛速度,采用Kapteyn级数对协方差矩阵进行展开。仿真结果表明,Kapteyn-MMSE估计的均方误差(MSE)收敛速度明显快于Taylor-MMSE,不足的是Kapteyn-MMSE复杂度略高于Taylor-MSME,但仍远小于经典MMSE算法。
[Abstract]:In order to reduce the complexity of large-scale MIMO channel estimation, a channel estimation method based on Kapteyn series expansion is proposed. The covariance inverse matrix is expanded by Taylor series to reduce the complexity of channel estimation. In order to improve the convergence rate of Taylor-MMSE estimation, the covariance matrix is expanded by Kapteyn series. The simulation results show that the mean square error (MSE) of Kapteyn-MMSE estimation converges much faster than that of Taylor-MMSE, and the Kapteyn-MMSE complexity is slightly higher than that of Taylor-MSME, but still much less than the classical MMSE algorithm.
【作者单位】: 东南大学信息科学与工程学院;北京邮电大学网络与交换技术国家重点实验室;
【基金】:国家自然科学基金资助项目(No.61571108,No.61471164) 东南大学移动通信国家重点实验室自主研究基金资助项目(No.2016B02) 网络与交换技术国家重点实验室(北京邮电大学)开放课题基金资助项目(No.SKLNST-2016-2-14)~~
【分类号】:TN919.3
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本文编号:1780865
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