Balatsoukas-Stimming, Alexios
Burg, Andreas Peter
Density Evolution for Min-Sum Decoding of LDPC Codes Under Unreliable Message Storage
IEEE Communications Letters
IEEE Communications Letters
IEEE Communications Letters
IEEE Communications Letters
18
5
LDPC codes
min-sum decoding
faulty decoding
2014
2014
We analyze the performance of quantized min-sum decoding of low-density parity-check codes under unreliable message storage. To this end, we introduce a simple bit-level error model and show that decoder symmetry is preserved under this model. Subsequently, we formulate the corresponding density evolution equations to predict the average bit error probability in the limit of inﬁnite blocklength. We present numerical threshold results and we show that using more quantization bits is not always beneﬁcial in the context of faulty decoders.
Institute of Electrical and Electronics Engineers
1089-7798
IEEE Communications Letters
Journal Articles
10.1109/Lcomm.2014.030714.132830