Fig. 4

Depiction of the BER-CDF ^ac metric \(\Pr \left (\hat {P}_{b} > 0.5-\delta \right)\) for the BCH(127,92) code for \(\mathcal {S}_{b} = 2 \times 92 = 184\) using L-order DPSK modulation. Notice that for some δ values, the BER-CDF ^ac approaches one, where other curves appear to be bounded away from one