Covariance Matrix Estimation in Massive MIMO.
David NeumannMichael JohamWolfgang UtschickPublished in: IEEE Signal Process. Lett. (2018)
Keyphrases
- covariance matrix
- estimation error
- covariance matrices
- sample size
- principal component analysis
- multivariate normal
- multivariate gaussian
- mahalanobis distance
- positive definite
- pseudo inverse
- geometrical interpretation
- correlation matrix
- parameter estimation
- estimation algorithm
- gaussian mixture
- maximum likelihood estimation
- eigenvalues and eigenvectors
- class conditional densities
- density estimation
- k means
- cma es
- evolutionary algorithm