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Spectral efficiency of massive MIMO networks with pilot contamination and channel covariance matrix estimation.
Xiaoqing Zhang
Shangbin Wu
Shanshan Yu
Ju Liu
Published in:
IET Commun. (2019)
Keyphrases
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covariance matrix
estimation error
covariance matrices
fading channels
principal component analysis
cellular networks
mimo systems
sample size
ofdm system
positive definite
multivariate gaussian
estimation algorithm
multiple input
multiple input multiple output
correlation matrix
mahalanobis distance
maximum likelihood estimation
eigenvalues and eigenvectors
eigendecomposition
channel estimation
gaussian mixture
mimo ofdm
geometrical interpretation
cma es
wireless channels
wireless communication
communication systems
multipath
maximum likelihood
evolutionary algorithm
objective function
density estimation
model selection
computational complexity
feature selection