基于直接序列扩频的可见光通信系统

袁学光; 张阳安; 张锦南; 张明伦

doi:doi:10.3788/aos201434.s106004

光学学报, 2014, 34 (s1): s106004, 网络出版: 2014-08-18

基于直接序列扩频的可见光通信系统

Visible Light Communication System Based on Direct Sequence Spread Spectrum

论文大纲

袁学光 ^*张阳安张锦南张明伦

作者单位

北京邮电大学信息光子学与光通信国家重点实验室，北京 100876

光通信可见光通信扩频直接序列扩频 optical communications visible light communication spread spectrum direct sequence spread spectrum

摘要

提出了一种基于直接序列扩频的可见光通信系统，扩频通信的方法以香农信息论作为理论基础，对可见光通信系统中扩频通信理论进行了分析，理论分析结果表明扩频通信方法可以缓解可见光通信系统的多径损耗，并且提高可见光通信系统安全性。对基于直接序列扩频的可见光通信系统进行了仿真，仿真结果表明系统性能相比直接检测系统有一定提高，扩频通信技术对提高可见光通信系统可靠性具有实际的意义。

Abstract

A direct sequence spread spectrum scheme for visible light communication system is proposed. The spread spectrum scheme is based on the Shannon theorem in information theory. Theoretical analysis result demonstrates that spread spectrum technology can mitigate the effect of multipath and improve the security in visible light communication system. The simulation results show that the performance of direct sequence spread spectrum based system is improved comparing with the directly detecting system without spread spectrum. Spread spectrum is a practical approach to improve the reliability of the visible light communication system.

参考文献

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袁学光, 张阳安, 张锦南, 张明伦. 基于直接序列扩频的可见光通信系统[J]. 光学学报, 2014, 34(s1): s106004. Yuan Xueguang, Zhang Yang′an, Zhang Jinnan, Zhang Minglun. Visible Light Communication System Based on Direct Sequence Spread Spectrum[J]. Acta Optica Sinica, 2014, 34(s1): s106004.

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