吉比特室内无线光通信系统研究  

Study on Indoor Gigabit Optical Wireless Communication System

作　　者：崔炜[1] 陈磊[1] 

机构地区：[1]长春理工大学电子信息工程学院,长春130022

出　　处：《半导体光电》2011年第4期553-555,共3页Semiconductor Optoelectronics

摘　　要：针对红外直射信道模型设计了一种多输入多输出室内光无线通信系统,该系统在信道数达到8时可以实现1 080Mbit/s的数据率。系统采用定长数字脉冲间隔调制(FDPIM)解决脉冲位置调制(PPM)需要符号同步和数字脉冲间隔调制(DPIM)符号长度不固定所引起的问题,对FDPIM系统的符号结构、带宽、差错率特性等方面进行了分析,并与OOK、PPM和DPIM调制方式进行了比较。仿真结果表明,系统更加适合未来低成本、高数据率室内无线通信的需求。A multiple-input and multiple-output indoor wireless optical communication system is developed for high data rate communications. The realized system has 1 080 Mbit/s data rates with eight channels and fixed-length digital pulse interval modulation （FDPIM）. The FDPIM does not need symbol synchronization and has fixed symbol length, so it can simplify the receiver and solve the problems of modulator waiting or buffer overflow in comparison with PPM and DPIM respectively. The symbolic structure, bandwidth, error rate and other characteristics of FDPIM system are analysed. The simulation results show the system is more suitable for low cost and high data rate wireless communications.

关 键 词：无线光通信 定长数字脉冲位置调制 红外光通信 红外激光 

分 类 号：TN929[电子电信—通信与信息系统]