For the importance of the relationship between information and parity, the generator matrix and the parity-check matrix of every code have been discussed.
由于信息码元与校验码元之间关系的重要性，对每一种码的生成矩阵和校验矩阵均进行了讨论。
2
The recently proposed extrinsic information transfer(EXIT) chart is a powerful yet simple method for optimizing irregular low-density parity-check (LDPC) codes.
最近提出的外部信息转移图是一种优化非正则LDPC码的简单高效方法。
3
Low Density paritycheck (LDPC) codes are a kind of linear block codes approaching Shannon limit. They can be constructed either with spare parity-check matrix or with factor graphs.