MMSE combining scheme with subblock noise covariance matrix for fractional sampling-OFDM receivers.
Tatsuya KobayashiHaruki NishimuraYukitoshi SanadaPublished in: PIMRC (2008)
Keyphrases
- covariance matrix
- sample size
- estimation error
- covariance matrices
- multipath
- minimum mean square error
- mahalanobis distance
- carrier frequency offset
- lower order
- channel estimation
- principal component analysis
- signal to noise ratio
- geometrical interpretation
- fading channels
- wireless communication
- multivariate gaussian
- gaussian mixture
- noise variance
- objective function
- noise model
- noise reduction
- noise level
- pseudo inverse
- eigenvalues and eigenvectors
- gaussian noise
- communication systems
- wireless communication systems
- maximum likelihood
- feature extraction