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发明授权
CN103843252B 确定准循环低密度奇偶校验码的方法和基于准循环低密度奇偶校验码进行数据编码的系统 有权

确定准循环低密度奇偶校验码的方法和基于准循环低密度奇偶校验码进行数据编码的系统
摘要：
公开了一种用于确定准循环（QC）低密度奇偶校验（LDPC）码以使得该QC LDPC码不具有捕获集的系统和方法。获得表示一族QC LDPC码的一组矩阵，其中，各个QC LDPC码是围长不小于八的咬尾空间耦合码，并且其中，所述一组矩阵中的各个矩阵的各列的权重不小于四。基于捕获集图案来从所述一组矩阵中选择矩阵，使得所述矩阵表示不具有捕获集的QC LDPC码。所述矩阵可以存储在存储器中。
摘要（英）：

A system and a method for determining a quasi-cyclic (QC) low-density parity-check (LDPC) code, such that the QC LDPC code has no trapping sets are disclosed. A set of matrices representing a family of QC LDPC codes are acquired, wherein each QC LDPC code is a tail-biting spatially-coupled code of girth not less than eight, and wherein each column of each matrix in the set has a weight not less than four. Based on a trapping set pattern, a matrix from the set of matrices is selected such that the matrix represents the QC LDPC code with no trapping sets. The matrix can be stored into a memory.

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