机译:MIMO OFDM系统中基于子空间的噪声方差和SNR估计
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;
Faculty of Information Technology, Macao University of Science and Technology, Macao, China;
National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China;
Multi-Input Multi-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM); Noise variance; Signal-to-Noise Ratio (SNR); Delay subspace; Channel correlation matrix;