A Zero Attracting Natural Gradient Non-Parametric Maximum Likelihood for Sparse Channel Estimation.
Abhijeet BishnuVimal BhatiaPublished in: GLOBECOM (2017)
Keyphrases
- sensor networks
- maximum likelihood
- channel estimation
- natural gradient
- estimation algorithm
- mixing matrix
- blind source separation
- communication systems
- independent component analysis
- ofdm system
- multipath
- learning rate
- random projections
- fading channels
- source separation
- blind separation
- bit error rate
- sparse representation
- policy gradient
- source signals
- negative matrix factorization
- computer simulation
- factor analysis
- reinforcement learning