Construction of Low-Density Parity-Check Codes by Superposition
J. Xu, Lei Chen, Lingqi Zeng, Longwen Lan, Shu Lin · IEEE Transactions on Communications · 2005
This paper presents a superposition method for constructing low-density parity-check (LDPC) codes. Several classes of structured LDPC codes are constructed. Codes in these classes perform well with iterative decoding, and their Tanner graphs have girth at least six.