Research on LDPC coding in ultraviolet communication systems and its implementation

Liu Wenkai; Zhang Feng; Wu Menglong; Dong Xiaowei

doi:10.13756/j.gtxyj.2014.05.19

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Research on LDPC coding in ultraviolet communication systems and its implementation

- Research on LDPC coding in ultraviolet communication systems and its implementation
- Study on Optical communication Issue 5, Pages: 63-65(2014)
- 作者机构：
  
  北方工业大学信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2014.05.19
  CLC： TN929.1
- Published：2014，
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[1]刘文楷,张锋,武梦龙,董小伟.LDPC码在紫外光通信中的研究实现[J].光通信研究,2014(05):63-65.

Liu Wenkai, Zhang Feng, Wu Menglong, et al. Research on LDPC coding in ultraviolet communication systems and its implementation. [J]. (5):63-65(2014)
[1]刘文楷,张锋,武梦龙,董小伟.LDPC码在紫外光通信中的研究实现[J].光通信研究,2014(05):63-65. DOI： 10.13756/j.gtxyj.2014.05.19.

Liu Wenkai, Zhang Feng, Wu Menglong, et al. Research on LDPC coding in ultraviolet communication systems and its implementation. [J]. (5):63-65(2014) DOI： 10.13756/j.gtxyj.2014.05.19.

摘要

在UV（紫外光）通信系统中噪声会对信号产生明显的干扰。为了改善UV系统的的通信质量

采用了一种改进的LDPC（低密度奇偶校验）码算法

并仿真了该算法在UV信道模型中NLOS（非视距传播）的性能。设计了LDPC（960

480）和RS（18

10）编解码器平台。实验结果表明:在给定发送功率和10-6误码率的情况下

相对于未编码的系统

采用RS（里所）编解码仅增加了42%的可靠通信距离

而采用LDPC编解码却能增加约100%的可靠通信距离

能有效改善系统的通信性能。

Abstract

Noises brings about obvious interferences with signals in Ultraviolet（UV）communication systems.For the purpose of improving the system communication quality

this paper implements an improved Low-Density Parity-Check（LDPC）codec algorithm and simulates its Non-Line-Of-Sight（NLOS）performances on a UV channel model.It conducts experiments on a LDPC（960

480）and RS（18

10）codec test bed.The experimental result shows that under the conditions of given power and10-6 bit error rate

the reliable communication range increases by only 42% with RS relative to uncoded systems

but by 100%with LPDC

thus effectively improving the communication performance.

关键词

紫外光通信低密度奇偶校验里所编码非视距传播误码率

Keywords

UV communicationLDPC codeRS codeNLOSBER

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