Table 2 Used degree distribution. Table showing LDPC-Staircase DD for different values of r L where N1=5
From: GLDPC-Staircase AL-FEC codes: a fundamental study and new results
r L | edge DD (λ(x), ρ(x)) | node DD (L(x),R(x)) |
|---|---|---|
\(\frac {1}{2}\) | λ(x)=0.2857.x 1+0.7143.x 4, ρ(x)=x 6 | L(x)=0.5000.x 2+0.5000.x 5, R(x)=x 7 |
\(\frac {2}{3}\) | λ(x)=0.1666.x 1+0.8333.x 4, ρ(x)=x 11 | L(x)=0.3333.x 2+0.6667.x 5, R(x) = x 12 |
0.75 | λ(x)=0.1176.x 1+0.8824.x 4, ρ(x)=x 16 | L(x)=0.2500.x 2+0.75.x 5, R(x)=x 17 |
0.8 | λ(x)=0.0909.x 1+0.9091.x 4, ρ(x)=x 21 | L(x)=0.2.x 2+0.8.x 5, R(x)=x 22 |