Mitigating clipping effects on error floors under belief propagation decoding of polar codes
Mitigating clipping effects on error floors under belief propagation decoding of polar codes
In this work, we show that polar belief propagation (BP) decoding exhibits an error floor behavior which is caused by clipping of the log-likelihood ratios (LLR). The error floor becomes more pronounced for clipping to smaller LLR-values. We introduce a single-value measure quantifying a "relative error floor", showing, by exhaustive …