[1]张卫党,阎新芳,邵霞..低重量种子序列对Turbo码低码重分布的影响[J].郑州大学学报(工学版),2006,27(02):88-90.[doi:10.3969/j.issn.1671-6833.2006.02.022]
　Zhang Wei Dang,Yan Xinfang,Shao Xia.Effect of low-weight seed sequences on low-code redistribution of Turbo codes[J].Journal of Zhengzhou University (Engineering Science),2006,27(02):88-90.[doi:10.3969/j.issn.1671-6833.2006.02.022]

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低重量种子序列对Turbo码低码重分布的影响()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

27卷

期数:

2006年02期

页码:

88-90

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Effect of low-weight seed sequences on low-code redistribution of Turbo codes

作者:

张卫党; 阎新芳; 邵霞.

郑州大学信息工程学院,河南,郑州,450052, 中国网通有限公司郑州分公司,河南,郑州,450052

Author(s):

Zhang Wei Dang; Yan Xinfang; Shao Xia

关键词:

Turbo码;  码重分布;  交织器

Keywords:

Turbo code;  code weight distribution;  Interlogators

DOI:

10.3969/j.issn.1671-6833.2006.02.022

文献标志码:

A

摘要:

用概率的方法,分析了不同重量的种子序列经过交织后仍为种子序列的概率,讨论了低重量的种子自结尾输入序列对Turbo码的低码重分布的影响.通过分析讨论指出,如果Turbo码生成多项式中的反馈多项式的周期较长,重2输入序列产生的码字重量就会较大,而其他重量的种子输入序列,尤其是重量为3,4的种子输入序列,产生的码字重量就很有可能低于重2输入序列产生的码字重量.交织器的长度越短,出现这种情况的概率就越大.

Abstract:

The probability of seed sequences of different weights remaining seed sequences after interweaving was analyzed by probabilistic method, and the influence of low-weight seed input sequences on the low-code redistribution of Turbo codes was discussed. Through analysis and discussion, it is pointed out that if the period of feedback polynomial in the Turbo code generation polynomial is longer, the weight of the codeword generated by the heavy 2 input sequence will be larger, while the weight of other weight seed input sequences, especially the seed input sequence with weight 3 and 4, the weight of the code word produced is likely to be lower than that of the weight of the code word generated by the heavy 2 input sequence. The shorter the length of the interleaver, the greater the probability of this happening.

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