Channel Estimation Using Gaussian Approximation in a Factor Graph for QAM Modulation.
Yang LiuLoïc BrunelJoseph Jean BoutrosPublished in: GLOBECOM (2008)
Keyphrases
- channel estimation
- ofdm system
- factor graphs
- frequency selective
- fading channels
- communication systems
- estimation algorithm
- message passing
- wireless communication
- graphical models
- multipath
- bit error rate
- orthogonal frequency division multiplexing
- belief propagation
- amplitude modulation
- approximate inference
- maximum likelihood
- computer simulation
- probabilistic inference
- approximation algorithms
- gaussian model
- latent variables
- communication networks
- recursive least squares
- probabilistic model
- image sequences
- parameter learning
- wireless channels
- signal to noise ratio
- random variables
- markov random field
- physical layer
- pairwise
- computational complexity
- multiscale