Belief-Propagation Decoding of Lattices Using Gaussian Mixtures

  title={Belief-Propagation Decoding of Lattices Using Gaussian Mixtures},
  author={Brian M. Kurkoski and Justin Dauwels},
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