城市光无线通信网络中的问题及其解决方案

在短距离通信中,城市光无线通信(urban optical wireless communication,UOWC)网络可以提供很高的传输速率,因而越来越受到关注.UOWC的终端包括一个光发射机和一个光接收机,它们通常安装在相距几百米的大厦的顶端.UOWC具有几个显著的优点:使用简单、重量轻便、容量巨大,而且它无需向政府相关部门交纳频率使用许可费.UOWC目前还存在一些问题,比如:在恶劣的天气中或大楼摆动时它的通信性能非常差.本文提出了克服这些缺点的一些方法.

The Main Challenges of UOWC and Corresponding Solutions

Much more attention has been paid for urban optical wireless communication (UOWC) for its high data rate over short distances. The terminal of UOWC includes an optical transmitter and a receiver which are installed on the roof of the high buildings. The information can be carried by the light which sent from the transmitter to the receiver. UOWC have many advantages, such as deployment facilitation, lightweight, high capacity and without licensing fees. However, UOWC still faces some challenges, including how to improve communication performance in adverse weather conditions or during building sway. In this article, we propose some possible solutions to deal with these issues.