Performance of Quantized Min-Sum Decoding Algorithms for Irregular LDPC Codes

  title={Performance of Quantized Min-Sum Decoding Algorithms for Irregular LDPC Codes},
  author={Daesun Oh and Keshab K. Parhi},
  journal={2007 IEEE International Symposium on Circuits and Systems},
This paper analyzes the performance of quantized min-sum decoding algorithms for irregular low-density parity-check (LDPC) codes. For regular LDPC codes, it is known that the normalized or offset min-sum decoding algorithm with quantization bits less than 6 bits achieves good performances over wide range of signal-to-noise ratios (SNR). However, finite precision effects in decoding irregular LDPC codes are different from that in decoding regular LDPC codes which is caused by the difference of… CONTINUE READING
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A 690-mW 1-Gb/s 1024-b, rate-1/2 lowdensity parity-check code decoder

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