Figure 2From: Differentially Encoded LDPC Codes—Part II: General Case and Code OptimizationComparison of PA codes and LDPC codes on fast-fading Rayleigh channels with noncoherent detection and decoding. Solid line: PA codes, dashed lines: LDPC codes. Code rate 0.75, data block size 1 K, filter length 65, normalized Doppler spread 0.01, 10 global iterations, and 4 (local) iterations within LDPC codes or the outer code of PA codes inside each global iteration.Back to article page