Decoding Generalized Joint Channel Coding and Physical Network Coding in the LLR Domain
Pingping Chen, Yi Fang, Lin Wang, Francis C. M. Lau · IEEE Signal Processing Letters · 2012
This letter develops a log-likelihood-ratio-based decoder for a generalized joint channel-coding-and-physical-network coding used in a two-way relay system. Assuming that the same low-density parity-check codes are used at the source nodes, the proposed decoder shows identical error performance as the probability-domain-based decoder but with a much lower computational complexity.