Lengths for Which Fourth Degree PP Interleavers Lead to Weaker Performances Compared to Quadratic and Cubic PP Interleavers

. 2020 Jan 8;22(1):78. doi: 10.3390/e22010078

Algorithm 1: Algorithm for computing the nonlinearity degree

ζ

for a 4-PP for interleaver lengths of the form (5) and the coefficients of 4-PP fulfilling conditions (6) when

3 ∤ (p_{i} - 1)

input: Values

k_{L}

for the interleaver length, and

k_{3, f}

k_{2, f}

for the 4-PP.
output: Nonlinearity degree

ζ

for the 4-PP.
Inline graphic

ζ \leftarrow 16 k_{L} / N_{k_{0}}

;