A unified framework for GLRT-based spectrum sensing of signals with covariance matrices with known eigenvalue multiplicities.
Erik AxellErik G. LarssonPublished in: ICASSP (2011)
Keyphrases
- spectrum sensing
- covariance matrices
- covariance matrix
- cognitive radio networks
- cognitive radio
- principal component analysis
- wireless communication
- maximum likelihood
- sample size
- multivariate normal
- objective function
- gaussian mixture
- vector space
- riemannian metric
- gaussian mixture model
- distance measure
- data sets
- principal components
- gaussian distribution
- communication systems
- wireless networks
- generative model
- em algorithm
- training set
- face recognition
- learning algorithm