Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (5): 39-42.DOI: 10.3778/j.issn.1002-8331.2009.05.012
• 研究、探讨 • Previous Articles Next Articles
HUANG Xin-mei,YAN Ting-su,TANG Yuan-sheng
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黄鑫梅,颜廷苏,唐元生
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Abstract: QC-LDPC codes constructed by circulant permutation matrices will lead to inevitable cycles，named balanced-cycles.This paper analyzes the structure of balanced-cycles in QC-LDPC codes.And proposes an algorithm to search for the incidence matrices of the simple balanced-cycles of arbitrary length.
Key words: Quasi-cyclic low-density parity-check（QC-LDPC） codes, balanced-cycles, simple balanced-cycles, girth
摘要： 在用循环置换矩阵构造准循环LDPC码时会出现一类无法消除的环，称为平衡环。分析了准循环LDPC码的平衡环的结构，并给出了搜索任意长度的最简平衡环的关联矩阵的方法。
关键词: 准循环低密度奇偶校验码, 平衡环, 最简平衡环, 围长
HUANG Xin-mei,YAN Ting-su,TANG Yuan-sheng. Algorithm for a class of balanced-cycles in QC-LDPC codes[J]. Computer Engineering and Applications, 2009, 45(5): 39-42.
黄鑫梅,颜廷苏,唐元生. 一类准循环LDPC码的平衡环的算法[J]. 计算机工程与应用, 2009, 45(5): 39-42.
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URL: http://cea.ceaj.org/EN/10.3778/j.issn.1002-8331.2009.05.012
http://cea.ceaj.org/EN/Y2009/V45/I5/39
