Low-Density Parity Check Codes over GF (q)
Low-Density Parity Check Codes over GF (q)
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DOI:
10.1109/4234.681360
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发表时间:
1998-06-01
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影响因子:
--
通讯作者:
MacKay, David
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文献类型:
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作者:
Davey, Matthew C.;MacKay, David
Gallager's low-density binary parity check codes have been shown to have near-Shannon limit performance when decoded using a probabilistic decoding algorithm. We report the empirical results of error-correction using the analogous codes over GF (q) for q > 2; with binary symmetric channels and binary Gaussian channels. We find a significant improvement over the performance of the binary codes, including a rate 1/4 code with bit error probability < 10(-5) at E(b)/N(0) = 0.2 dB.