基于OCDMA的改进型室内可见光无线局域网分析  

Analysis of Improved Indoor Visible Light WLAN Based on OCDMA

作　　者：冯庆[1] 方安安[1] 汪蓉蓉[1] 

机构地区：[1]南昌大学信息工程学院电子系,江西南昌330031

出　　处：《电视技术》2014年第3期102-104,113,共4页Video Engineering

基　　金：国家青年科学基金项目(41004059)

摘　　要：在原有的室内可见光无线通信网络结构的基础上,提出将用户终端适配器光源改为激光。用激光通信实现系统的上行链路,采用可见光通信与激光通信相结合的方式实现室内无线局域网,并基于光码分多址(OCDMA)技术,用光正交码(OOC)作为地址码对信号进行编码。仿真结果表明,改进后的系统误码率明显降低,能较好地满足通信的需求。The laser is employed as the light source of terminal adapter to make the uplink of indoor visible light WLAN come true. The laser communication combined with OCDMA is used in the proposed method. The signal is encoded by applying OOC. Our method is compared with the approach which uses the visi- ble light as the light source both in uplink and downlink. Experiments involved are carried out. The results show that the bit error rate is decreased remarkably.

关 键 词：激光 可见光通信 光码分多址 终端适配器 无线局域网 

分 类 号：TN929.1[电子电信—通信与信息系统]