Construction of QC-LDPC Codes Based on Pre-Masking and Local Optimal Searching.

Dongdong Wang,Liqian Wang,Xue Chen,Aimei Fei,Chen Ju,Zhirong Wang

IEEE Communications Letters（2018）

引用 6|浏览41

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摘要

In this letter, we consider the construction of quasi-cyclic (QC) low-density parity-check (LDPC) codes by jointly optimizing the girth g and the number of g-cycles. We first propose a sub-array detection method to accelerate the detection of cycles, and by detecting the non-repeated automatic enumerative cycles in the frame of sub-arrays, cycle detection time can be greatly reduced. Furthermore, ...

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关键词

Parity check codes,Simulation,Algorithm design and analysis,Complexity theory,Acceleration,Null space,Indexes

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