Analysis of UEP QC-LDPC Codes Using Density Evolution
Yi‐Hsuan Chen, Yuting Liu, Chung-Hsuan Wang, Chi-chao Chao · International Symposium on Information Theory and its Applications · 2020
We develop asymptotic analysis of recently constructed unequal error protection (UEP) quasi-cyclic (QC) low-density parity-check (LDPC) codes by using density evolution and its Gaussian approximation in this paper. The proposed analysis can indeed yield different decoding thresholds for different protection levels. As verified by computer simulation, the coding gain differences between protection levels can also be well predicted.