| 摘要 |
A decoder for decoding low-density parity-check codes comprises a first calculator to calculate LLrR<SUB>ml</SUB>, for each parity check equation, at iteration i-1. A detector detects LLrR<SUB>ml</SUB>, at iteration i, in response to the first calculator. A second calculator calculates LLrQ<SUB>Lm</SUB>, for each parity check equation, at iteration i in response to the detector. LLrQ<SUB>Lm </SUB>represents information from bit node l to equation node m, one for each connection. LLrR<SUB>ml </SUB>represents information from equation node m to bit node l, one for each connection. The first calculator is responsive to the second calculator.
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