检索结果-内蒙古大学图书馆

1st International Symposium on Information Engineering and Electronic Commerce

作者： Wu, Guoqiang Sun, Zhaowei Harbin Inst Technol Res Ctr Satellite Technol Harbin 150006 Peoples R China

ISBN: (纸本)9780769536866

That the computation load is big is a shortcoming of traditional bp decoding algorithm. According to this shortcoming we give an improved bp decoding algorithm. The decoding algorithm in the iterative decoding process, only need to update the possibility of a wrong bit of information without having to update the information whose reliability is very high, raises the decoding efficiency and reduces decoding time delay. The simulation result shows: the calculation load of improved bp decoding algorithms descends distinctively with the increasing iteration numbers;Along with the times increasing of LDPC code iterations upper limit, coding performance can be obviously improved.

关键词： LDPC Code bp decoding arithmetic AWGN channel Decoder Iterative decoding algorithms

来源：评论

学校读者我要写书评

暂无评论

Design of A High-speed Parallel LDPC Encoder

引用

JOURNAL OF COMPUTERS 2013年第8期8卷 1995-2002页

作者： Wu, Guoqiang Tan, Shujun Zhang, Jianwei Dalian Univ Technol State Key Lab Struct Anal Ind Equipment Dalian 116024 Peoples R China Dalian Univ Technol Sch Aeronaut & Astronaut Dalian 116024 Peoples R China Dalian Univ Technol Sch Elect Sci & Technol Dalian 116024 Peoples R China

In this paper, the traditional bp decoding algorithm of LDPC code is investigated in detail. The large computation load is a shortcoming of traditional bp decoding algorithm, and an improved bp decoding algorithm is then proposed to deal with the problem. In the iterative decoding process, the wrong bit information only needs to be updated for the decoding algorithm, which consequently improves the efficiency and reduces time-delay of decoding. According to the improved bp decoding algorithm, the high-speed parallel encoder is designed, which can be used in various distributed sensor network applications. Furthermore, the error correction performance of this high speed parallel encoder in the Gaussian channel is studied. The simulation is provided to illustrate that the improved high speed parallel encoder has lower computational complexity and higher decoding speed based on the premise of a little decoding performance loss.

关键词： LDPC Code bp decoding arithmetic AWGN channel high-speed Parallel decoder iterative decoding algorithms

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：