一类来自有限域GF(16)子群上的高码率的LDPC码

A Class of High-rate Codes from Subgroup of Finite Field GF(16)

最近,Sobhani等人利用在有限群上的元素置换方法构造群置换LDPC码,本文在此基础上,给出了一类在有限域GF(16)的子群上构造的高码率的LDPC码,其Tanner图围长至少为8。仿真结果表明,这类码执行性能优于相应类型的随机LDPC码和其代数结构的准循环LDPC码。

Recently, Sobhani constructed group permutation LDPC codes from permutations associated with elements in a fi-nite group.Based on the work, a class of these high-rate codes for which the Tanner graphs with girth at least 8 associated with their parity-check matrices are presented .Simulation results show their good performance compared with random-like and quasi-cy-clic codes counterparts.