摘要
设计了一套基于白光LED的点对点式可见光数字通信系统,利用Optisystem软件完成数字传输系统仿真与性能分析,讨论了不同距离下接收功率、误码率等参数的变化特性。依据仿真模型搭建了一套基于数字传输的PC通信系统,实现端到端的文件传输。为提升系统性能,讨论了一种基于多光源非等幅OOK调制的并行通信方式,仿真结果表明传输速率得到一倍的提升。
The paper proposes a point to point digital visiable light communication systems based on white LED, completes the simulation and performance analysis of digital transmission system by using the Optisys- tern software, discusses the receive power and bit error rate under different distance parameters. According to the simulation model, the paper builds a set of communication system based on digital transmission, the sys- tem realize the file transfer from point to point, discusses a kind of parallel communication mode based on multiple light source unequal amplitude OOK modulation, the result shows that transmission rate twice been improved.
出处
《光通信技术》
北大核心
2017年第4期20-23,共4页
Optical Communication Technology
基金
重庆市科技支撑示范工程项目(NO.cstc2014zktjccx BX0074
NO.cstc2012jcsf-jfzh X0028)资助
关键词
可见光通信
数字通信
OOK调制
非等幅调制
visiable light communication
digital communication
on-off keying modulation
unequal ampli-tude modulation
