Factor graph em algorithm for joint channel tracking and MAP detection of MIMO-OFDMA in fading channels.
Sau-Hsuan WuPublished in: ICASSP (2008)
Keyphrases
- fading channels
- em algorithm
- maximum a posteriori
- physical layer
- expectation maximization
- factor graphs
- parameter learning
- frequency selective
- multipath
- channel estimation
- mimo systems
- mixture model
- maximum likelihood
- multiple input multiple output
- ofdm system
- code division multiple access
- parameter estimation
- wireless communication
- cellular systems
- gaussian mixture model
- channel coding
- generative model
- wireless channels
- bit error rate
- transmission scheme
- particle filter
- probabilistic model
- graphical models
- image reconstruction
- hidden variables
- belief propagation
- hyperparameters
- markov random field
- latent variables
- kalman filter
- additive white gaussian noise
- end to end
- message passing
- bayesian framework
- image segmentation
- probability density function
- generalized gaussian
- routing algorithm
- particle filtering
- video transmission