Convolutional Sparse Coding Based Channel Estimation for OTFS-SCMA in Uplink.
Anna ThomasKuntal DekaPatchava RavitejaSanjeev SharmaPublished in: IEEE Trans. Commun. (2022)
Keyphrases
- sparse coding
- channel estimation
- multipath
- code division multiple access
- communication systems
- bit error rate
- natural images
- dictionary learning
- sparse representation
- fading channels
- image classification
- wireless channels
- unsupervised learning
- ofdm system
- linear combination
- estimation algorithm
- generative model
- image representation
- computer simulation
- image patches
- application layer
- high dimensional
- end to end
- visual words
- feature space
- channel coding
- signal to noise ratio
- wireless communication
- multiscale
- bag of words
- routing algorithm
- neural network
- expectation maximization
- input image
- probabilistic model
- pairwise
- computational complexity
- feature extraction
- image segmentation