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- W1818146586 abstract "This work explains the relationship between cycles, stopping sets, and dependent columns of the parity check matrix of low-density parity-check (LDPC) codes. Furthermore, it discusses how these structures limit LDPC code performance under belief propagation decoding. A new metric called extrinsic message degree (EMD) measures cycle connectivity in bipartite graph. Using an easily computed estimate of EMD, we propose a Viterbi-like algorithm that selectively avoids cycles and increases stopping set size. This algorithm yields codes with error floors that are orders of magnitude below those of girth-conditional codes." @default.
- W1818146586 created "2016-06-24" @default.
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- W1818146586 date "2004-03-30" @default.
- W1818146586 modified "2023-10-16" @default.
- W1818146586 title "Construction of irregular LDPC codes with low error floors" @default.
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- W1818146586 doi "https://doi.org/10.1109/icc.2003.1203996" @default.
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