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METHOD FOR DETERMINING QUASI-CYCLIC LOW-DENSITY PARITY-CHECK CODE, AND SYSTEM FOR ENCODING DATA BASED ON QUASI-CYCLIC LOW-DENSITY PARITY-CHECK CODE
METHOD FOR DETERMINING QUASI-CYCLIC LOW-DENSITY PARITY-CHECK CODE, AND SYSTEM FOR ENCODING DATA BASED ON QUASI-CYCLIC LOW-DENSITY PARITY-CHECK CODE
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机译：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的数据编码系统
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摘要
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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