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.
出处
《电视技术》
北大核心
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)
