Abstract
This paper analyzes the robustness of Low Density Parity Check (LDPC) encoders on faulty hardware. The faulty hardware effect on the encoder is represented by an error model at the XOR gate level. We review the existing LDPC encoding solutions [1], [2] and the code constructions [3]–[5] that guarantee low encoding complexity. For each of the existing solutions [1]–[5], we provide the analytic expression of the encoding error probability, and we use it to evaluate the robustness of the encoders to hardware noise. We then identify the two best encoding solutions in terms of robustness and we compare their performance with Monte-Carlo simulations.
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