FDD Massive MIMO Downlink Channel Estimation via Selective Sparse Coding over AoA/AoD Cluster Dictionaries.
Mahmoud NazzalHaji Muhammad FurqanHüseyin ArslanPublished in: PIMRC (2018)
Keyphrases
- sparse coding
- channel estimation
- sparse representation
- communication systems
- fading channels
- cdma systems
- sparse codes
- single image super resolution
- wireless channels
- multipath
- dictionary learning
- code division multiple access
- ofdm system
- image classification
- bit error rate
- natural images
- image patches
- feature space
- image representation
- discriminative dictionary
- estimation algorithm
- linear combination
- frequency selective
- unsupervised learning
- generative model
- face recognition
- orthogonal frequency division multiplexing
- data points
- computer simulation
- signal processing
- dimensionality reduction
- visual words
- wireless communication
- end to end
- high dimensional data
- computer systems
- data transmission
- bag of words
- physical layer
- data analysis
- analytical model
- application layer
- wireless networks
- expectation maximization
- super resolution
- high resolution
- feature vectors
- high dimensional