Construction of short block length irregular low-density parity-check codes

@article{Ramamoorthy2004ConstructionOS,
  title={Construction of short block length irregular low-density parity-check codes},
  author={Aditya Ramamoorthy and Richard D. Wesel},
  journal={2004 IEEE International Conference on Communications (IEEE Cat. No.04CH37577)},
  year={2004},
  volume={1},
  pages={410-414}
}
We present a construction algorithm for short block length irregular low-density parity-check (LDPC) codes. Based on a novel interpretation of stopping sets in terms of the parity-check matrix, we present an approximate trellis-based search algorithm that detects many stopping sets. Growing the parity check matrix by a combination of random generation and the trellis-based search, we obtain codes that possess error floors orders of magnitude below randomly constructed codes and significantly… CONTINUE READING
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