LDPC Decoder with Embedded Coding on Unreliable Memories

@article{Ge2017LDPCDW,
  title={LDPC Decoder with Embedded Coding on Unreliable Memories},
  author={Guangjun Ge and Liuguo Yin and Qin Huang},
  journal={GLOBECOM 2017 - 2017 IEEE Global Communications Conference},
  year={2017},
  pages={1-6}
}
Unreliable message storage severely degrades the performance of LDPC decoders. This paper discusses the various impacts of bit errors of finite-precision messages on LDPC decoders. Discrete density evolution indicates that the sign bits of finite-precision messages have the most influence on the decoding threshold. As a result, this paper proposes to protect the sign bits of messages by Hamming product codes. Simulation results show that the proposed scheme only has a degradation of 0.1 dB for… CONTINUE READING

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