Methodologies for designing LDPC codes using protographs and circulants

  title={Methodologies for designing LDPC codes using protographs and circulants},
  author={Jeremy Thorpe and Kenneth J. Andrews and Samuel Dolinar},
  journal={International Symposium onInformation Theory, 2004. ISIT 2004. Proceedings.},
A method is presented for constructing LDPC codes with excellent performance, simple hardware implementation, low encoder complexity, and which can be concisely documented. The simple code structure is achieved by using a base graph, expanded with circulants. The base graph is chosen by computer search using simulated annealing, driven by density evolution's decoding threshold as determined by the reciprocal channel approximation. To build a full parity check matrix, each edge of the base graph… CONTINUE READING
Highly Cited
This paper has 77 citations. REVIEW CITATIONS


Publications citing this paper.
Showing 1-10 of 44 extracted citations

77 Citations

Citations per Year
Semantic Scholar estimates that this publication has 77 citations based on the available data.

See our FAQ for additional information.


Publications referenced by this paper.
Showing 1-4 of 4 references

On the Construction of Some Capacity- Approaching Coding Schemes

  • S. Y. Chung
  • PhD thesis,
  • 2000
1 Excerpt

Similar Papers

Loading similar papers…