Sparse Coding Quantization for Downlink MU-MIMO with Limited CSI Feedback.
Qi WangHao FengLeonard J. Cimini Jr.Larry J. GreensteinDouglas S. ChanAhmadreza HedayatPublished in: MILCOM (2013)
Keyphrases
- sparse coding
- dictionary learning
- sparse representation
- natural images
- image classification
- linear combination
- unsupervised learning
- image representation
- single image super resolution
- generative model
- image patches
- wireless channels
- discriminative power
- reconstruction error
- sparse codes
- person re identification
- object category recognition
- feature space
- fading channels
- higher order
- high dimensional