Multiuser channel estimation: finding the best sparse representation of crosstalk on the basis of overcomplete dictionaries.
Stefano GalliRobert HausmanKenneth J. KerpezCraig ValentiPublished in: GLOBECOM (2002)
Keyphrases
- sparse representation
- channel estimation
- multipath
- dictionary learning
- sparse coding
- sparse coefficients
- face recognition
- image classification
- communication systems
- compressive sensing
- image patches
- sparse approximations
- negative matrix factorization
- estimation algorithm
- signal processing
- object tracking
- ofdm system
- image representation
- joint optimization
- high dimensional data
- sparse codes
- dimensionality reduction
- bit error rate
- routing algorithm
- fading channels
- end to end
- computer vision
- neural network
- natural images
- higher order