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| 低密度奇偶校验码的girth集及其性能分析 | |
| 引用本文： | 姚春光,郭秀英,张健,王建新.低密度奇偶校验码的girth集及其性能分析[J].信号处理,2007,23(6):946-950. |
| 作者姓名： | 姚春光 郭秀英 张健 王建新 |
| 作者单位： | 1. 国防科技大学电子科学与工程学院,湖南长沙,410073 2. 石家庄铁道学院数理系,河北石家庄,050043 3. 中国电子设备系统工程总公司,北京,100039 |
| 摘 要： | girth性质研究已经成为当前LDPC码的研究重点之一,本文在找到一种基于递归的LDPC码girth搜索方法的基础上,提出LDPC码的girth长度与纠错性能之间没有必然关系,并通过IEEE Std 802.16e格式的LDPC码进行了仿真验证;此外.本文指出,girth集影响LDPC码的纠错性能,在girth长度、码长等其他参数相同的情况下,纠错能力随girth集的变小而增强。 |
| 关 键 词： | LDPC码 girth集 |
| 修稿时间： | 2006年5月17日 |
Girth Collection and Performance Analysis for Low-Density Parity-Check codes |
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| YAO Chun-guang,GUO Xiu-ying,ZHANG Jian,WANG Jian-xin.Girth Collection and Performance Analysis for Low-Density Parity-Check codes[J].Signal Processing,2007,23(6):946-950. | |
| Authors: | YAO Chun-guang GUO Xiu-ying ZHANG Jian WANG Jian-xin |
| Abstract: | Study on properties of girth for LDPC code has become a hotspot nowadays,this article gives a new method for search- ing girth of LDPC code,and it presents the opinion that there is no certain relations between the length of girth and error correction per- formance of LDPC code,which is verified by the LDPC code defined by IEEE Std 802.16e.Besides,this article points out that error cor- rection capabilities is influenced by girth collection,and it will increase with the decreasing of girth collection size when lengths of girth and eodeword are equal. |
| Keywords: | girth IEEE Std 802 16e |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |