Sparse Coding with Enhanced Atom Selection for FDD Massive MIMO Channel Estimation.
Mahmoud NazzalMehmet Ali AygülHüseyin ArslanPublished in: VTC Fall (2021)
Keyphrases
- sparse coding
- channel estimation
- cdma systems
- fading channels
- communication systems
- multipath
- ofdm system
- dictionary learning
- natural images
- sparse representation
- image classification
- linear combination
- estimation algorithm
- generative model
- image patches
- frequency selective
- unsupervised learning
- image representation
- wireless communication
- bit error rate
- visual words
- end to end
- routing algorithm
- high dimensional
- multiscale
- wireless channels
- orthogonal frequency division multiplexing
- computer vision
- computer simulation
- computer systems
- maximum likelihood
- small number
- prior knowledge
- feature space
- data analysis
- physical layer
- high quality
- feature extraction