中国民航大学学报 ›› 2024, Vol. 42 ›› Issue (3): 92-96.

• 基础科学 • 上一篇    

基于阿贝尔群上的差分集构造 LDPC 码

  

  1. 1. 中国民航大学理学院,天津 300300; 2. 中国工商银行股份有限公司晋城分行, 山西 晋城 048000; 3. 长春工业大学国际教育学院, 长春 130102
  • 收稿日期:2023-03-28 修回日期:2023-05-12 出版日期:2025-01-09 发布日期:2026-08-02
  • 基金资助:
    中央高校基本科研业务费专项(3122023040)

Construction of LDPC based on the different set on Abel group

  1. 1. College of Science, CAUC, Tianjin 300300, China; 2. Industrial and Commercial Bank of China, Jincheng 048000, Shanxi, China; 3. School of International Education, Changchun University of Technology, Changchun 130102, China)
  • Received:2023-03-28 Revised:2023-05-12 Online:2025-01-09 Published:2026-08-02

摘要: 本文给出了区组长度为 3、4 和 5 的平衡不完全区组设计,将设计的关联矩阵作为校验矩阵,从而构造出 3 种低密度奇偶校验码(LDPC,low-density parity-check code)。 由于这些校验矩阵是准循环矩阵,所以构造的 码是拟循环 LDPC 码(QC-LDPC,quasi-cyclic LDPC)。计算码的相关参数,并针对具体的例子通过与类随机 码的译码性能进行分析比较,结果显示,所构造的码具有较好的性能。

关键词:  , LDPC, 差分, 平衡不完全区组设计, 准循环码

Abstract: This paper givesthe balanced incomplete block designs with the block sizes of 3, 4 and 5, three kinds of LDPC (lowdensity parity-check code) are constructed using the designed incidence matrices as check matrices. Since these check matrices are quasi-cyclic matrices, the constructed code are QC-LDPC (quasi-cyclic LDPC). The relevant parametersofthecodesarecalculatedandthroughthe analysis andcomparisonofdecodingperformancewithrandomlike codes based on specific examples, the results show that proposed codes in this paper have better performance

Key words:  , low-density parity-check code (LDPC), difference, balanced incomplete block design, quasi-cyclic code

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