Belief-Propagation Decoding of Lattices Using Gaussian Mixtures

@article{Kurkoski2009BeliefPropagationDO,
  title={Belief-Propagation Decoding of Lattices Using Gaussian Mixtures},
  author={Brian M. Kurkoski and Justin Dauwels},
  journal={CoRR},
  year={2009},
  volume={abs/0904.4741}
}
A belief-propagation decoder for low-density lattice codes is given which represents messages explicitly as a mixture of Gaussians functions. The key component is an algorithm for approximating a mixture of several Gaussians with another mixture with a smaller number of Gaussians. This Gaussian mixture reduction algorithm iteratively reduces the number of… CONTINUE READING