Bethe Free Energy Approach to LDPC Decoding on Memory Channels

@article{Anguita2009BetheFE,
  title={Bethe Free Energy Approach to LDPC Decoding on Memory Channels},
  author={Jaime Anguita and Michael Chertkov and Mark A. Neifeld and Bane V. Vasic},
  journal={ArXiv},
  year={2009},
  volume={abs/0904.0747}
}
We address the problem of the joint sequence detection in partial-response (PR) channels and decoding of low-density parity-check (LDPC) codes. We model the PR channel and the LDPC code as a combined inference problem. We present for the first time the derivation of the belief propagation (BP) equations that allow the simultaneous detection and decoding of a LDPC codeword in a PR channel. To accomplish this we follow an approach from statistical mechanics, in which the Bethe free energy is… CONTINUE READING

References

Publications referenced by this paper.
SHOWING 1-10 OF 26 REFERENCES

Factor graphs and the Sum-Product Algorithm

VIEW 3 EXCERPTS
HIGHLY INFLUENTIAL

An introduction to factor graphs

  • IEEE Signal Processing Magazine
  • 2004
VIEW 1 EXCERPT