A Low-Complexity LS Turbo Channel Estimation Technique for MU-MIMO Systems.
IEEE Signal Processing Letters(2018)
摘要
Turbo channel estimation algorithms can improve estimation accuracy in multiuser (MU) multi-input multi-output (MIMO) systems. However, the conventional least squares (LS) turbo channel estimation technique based on the maximum likelihood approach is difficult to be performed in large MU-MIMO systems since it requires a cubic complexity order O(κ3 NT3 NR3) for a system constant κ and numbers of NT...
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关键词
Channel estimation,Covariance matrices,Estimation,Complexity theory,Receivers,Signal to noise ratio,MIMO communication
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