RA码与网络编码的联合设计

doi:10.16180/j.cnki.issn1007-7820.2020.10.007

电子科技 ›› 2020, Vol. 33 ›› Issue (10): 40-44.doi: 10.16180/j.cnki.issn1007-7820.2020.10.007

RA码与网络编码的联合设计

妙琳,彭亚雄,陆安江

贵州大学大数据与信息工程学院,贵州贵阳 550025

收稿日期:2019-07-18 出版日期:2020-10-15 发布日期:2020-10-20
作者简介:妙琳(1993-),女,硕士研究生。研究方向:电子与通信工程。|彭亚雄(1963-),男,副教授。研究方向:数字通信技术、音视频处理技术。|陆安江(1978-),男,博士,副教授。研究方向:嵌入式系统与集成技术、物联网安全、微传感技术。
基金资助:
贵州省科技成果转化项目([2017]4856)

Joint Design Scheme of RA Code and Network Coding

MIAO Lin,PENG Yaxiong,LU Anjiang

School of Big Data and Information Engineering,Guizhou University,Guiyang 550025,China

Received:2019-07-18 Online:2020-10-15 Published:2020-10-20
Supported by:
Guizhou Province Science and Technology Achievements Transformation Project([2017]4856)

摘要/Abstract

摘要：

针对现有编码技术存在的编译码系统结构复杂、网络传输性能稳定性差等问题,文中提出了一种RA码与网络编码的联合设计方法。RA码融合了Turbo码编码和LDPC码译码各自的优点,采用RA码的BP译码算法,通过将RA码的译码器加入到PNC的信息计算流程中,将基于RA码的信道编码与PNC进行结合。最后,在MATLAB平台上进行仿真,基于AWGN信道获取SNR/BER性能曲线图。仿真结果显示,该方案有效简化了系统结构,降低了系统的信噪比和延迟性,提高了传输性能的稳定性。

关键词: RA码, 信道编码, 物理层网络编码, 后验概率向量, RA译码器, BP算法

Abstract:

In view of the problems of complex structure of coding and decoding system and poor stability of network transmission in existing coding technology, a joint design method of RA code and network coding is proposed. RA code combines the advantages of Turbo code and LDPC code. The BP decoding algorithm of RA code is adopted in this study. By adding the decoder of RA code into the information calculation process of PNC, the channel coding based on RA code is combined with PNC. Finally, the simulation is carried out by MATLAB platform. Based on AWGN channel, the SNR/BER performance curve is obtained. The simulation results show that the scheme effectively simplifies the system structure, reduces the signal-to-noise ratio and delay of the system, and improves the stability of transmission performance.

Key words: RA code, channel coding, physical layer network coding, posterior probability vector, RA decoder, BP algorithm

中图分类号:

TN911

妙琳,彭亚雄,陆安江. RA码与网络编码的联合设计[J]. 电子科技, 2020, 33(10): 40-44.

MIAO Lin,PENG Yaxiong,LU Anjiang. Joint Design Scheme of RA Code and Network Coding[J]. Electronic Science and Technology, 2020, 33(10): 40-44.

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RA码与网络编码的联合设计

Joint Design Scheme of RA Code and Network Coding

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