Dimensionality reduction of interference subspace for multiuser massive MIMO null-space expansion.
Nobutaka FunakiKazuki MarutaChang-Jun AhnPublished in: Digit. Signal Process. (2021)
Keyphrases
- null space
- dimensionality reduction
- linear discriminant analysis
- multipath
- principal components
- fading channels
- singular value decomposition
- lower dimensional
- principal component analysis
- discriminant analysis
- high dimensional data
- small sample size
- subspace learning
- low dimensional
- dimension reduction
- data representation
- high dimensional
- intrinsic dimensionality
- pattern recognition
- feature extraction
- scatter matrices
- feature space
- high dimensionality
- discriminative information
- manifold learning
- euclidean distance
- metric learning
- random projections
- data points
- data analysis
- novelty detection
- singular values
- low rank
- feature selection
- sparse representation
- finite dimensional
- computer vision
- support vector machine
- support vector machine svm
- subspace clustering
- covariance matrix