Enhanced limited rate implicit CSI feedback and its usage in covariance matrix based MU-MIMO.
Yang LiShihua ZhuHui TongMing XuPublished in: WCNC (2013)
Keyphrases
- covariance matrix
- covariance matrices
- principal component analysis
- estimation error
- geometrical interpretation
- eigendecomposition
- multivariate gaussian
- sample size
- pseudo inverse
- correlation matrix
- mahalanobis distance
- multivariate normal
- mahalanobis metric
- eigenvalues and eigenvectors
- positive definite
- objective function
- fading channels
- neural network