Variational-Bayes-Assisted Joint Signal Detection, Noise Covariance Estimation, and Channel Tracking in MIMO-OFDM Systems.
Xiaoying ZhangPei XiaoDongtang MaJibo WeiPublished in: IEEE Trans. Veh. Technol. (2014)
Keyphrases
- signal detection
- mimo ofdm systems
- variational bayes
- carrier frequency offset
- multipath
- ofdm system
- low signal to noise ratio
- orthogonal frequency division multiplexing
- latent variables
- bayesian inference
- estimation algorithm
- free energy
- gaussian mixture model
- bayesian learning
- hyperparameters
- posterior distribution
- latent dirichlet allocation
- particle filtering
- particle filter
- random noise
- kalman filter
- object tracking
- feature space
- noise level
- exponential family
- density estimation
- channel estimation
- sample size
- topic models