Estimation of Sparse Channel Using Bayesian Gaussian Mixture and CS-Aided Techniques for Pilot Contaminated Massive MIMO System.
T. Ravi BabuC. Dharma RajV. AdinarayanaK. Murali KrishnaPublished in: Wirel. Pers. Commun. (2021)
Keyphrases
- gaussian mixture
- probability density
- density estimation
- em algorithm
- fading channels
- mixtures of gaussians
- gaussian mixture model
- mimo systems
- covariance matrix
- expectation maximization
- mixture model
- multiple input multiple output
- wireless channels
- bayesian networks
- closed form
- maximum likelihood
- probability density function
- maximum likelihood estimation
- parameter estimation
- high dimensional
- gaussian density
- mimo ofdm
- wireless communication
- ofdm system
- higher order
- estimation algorithm
- generative model
- object recognition