Performance analysis of relay-aided free-space optical communication system over gamma-gamma fading channels with pointing errors  

作　　者：傅慧华 王平 王冉冉 刘晓霞 郭立新 杨银堂 

机构地区：[1]State Key Laboratory of Integrated Service Networks, School of Telecommunications Engineering, Xidian University [2]School of Physics and Optoelectronic Engineering, Xidian University [3]Key Laboratory of the Ministry of Education for Wide Band-Gap Semiconductor Materials and Devices, School of Microelectronics, Xidian University

出　　处：《Optoelectronics Letters》2016年第4期294-298,共5页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61474090);the Fundamental Research Funds for the Central Universities(No.JB160105);the 111 Project of China(No.B08038)

摘　　要：The average bit error rate(ABER) performance of a decode-and-forward(DF) based relay-assisted free-space optical(FSO) communication system over gamma-gamma distribution channels considering the pointing errors is studied. With the help of Meijer's G-function, the probability density function(PDF) and cumulative distribution function(CDF) of the aggregated channel model are derived on the basis of the best path selection scheme. The analytical ABER expression is achieved and the system performance is then investigated with the influence of pointing errors, turbulence strengths and structure parameters. Monte Carlo(MC) simulation is also provided to confirm the analytical ABER expression.

关 键 词：BANDWIDTH Bit error rate Distribution functions ERRORS Fading channels Monte Carlo methods Probability density function Probability distributions 

分 类 号：TN929.1[电子电信—通信与信息系统] V47[电子电信—信息与通信工程]