Dictionary Learning-Based Sparse Channel Representation and Estimation for FDD Massive MIMO Systems.
Yacong DingBhaskar D. RaoPublished in: IEEE Trans. Wirel. Commun. (2018)
Keyphrases
- dictionary learning
- mimo systems
- sparse representation
- dictionary learning for sparse
- sparse coding
- sparsity constraints
- low complexity
- image representation
- fading channels
- video transmission
- natural images
- wireless channels
- high dimensional
- bag of words
- multiple input multiple output
- image processing
- high dimensional data
- linear combination
- image classification
- bit error rate
- unsupervised learning
- low dimensional
- dimensionality reduction
- object recognition
- sparse representation based classification
- image sequences