Spatially Asymptotic Behavior of Structured Covariance Matrix Estimation for Massive MIMO.
Jinhui ChenZhan XuDavid GesbertKai YangRuxin ZhiPublished in: IEEE Commun. Lett. (2021)
Keyphrases
- covariance matrix
- estimation error
- covariance matrices
- principal component analysis
- sample size
- geometrical interpretation
- gaussian mixture
- multivariate gaussian
- positive definite
- mahalanobis distance
- pseudo inverse
- eigendecomposition
- class conditional densities
- eigenvalues and eigenvectors
- correlation matrix
- search algorithm
- objective function
- estimation algorithm
- parameter estimation
- least squares
- special case
- lower bound
- feature extraction
- machine learning