Performance of multi-hop parallel free-space optical communication over gamma-gamma fading channel with pointing errors

被引：11
|
作者：
Gao, Zhengguang [1 ]
Liu, Hongzhan [1 ]
Ma, Xiaoping [2 ]
Lu, Wei [2 ]
机构：
[1] South China Normal Univ, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Guangdong, Peoples R China
[2] Chinese Acad Sci, Key Lab Space Laser Commun & Testing Technol, Shanghai Inst Opt & Fine Mech, Shanghai 201800, Peoples R China
来源：
APPLIED OPTICS | 2016年 / 55卷 / 32期
基金：
中国国家自然科学基金;
关键词：
TURBULENCE CHANNELS; CAPACITY; SYSTEMS; LINKS;
D O I：
10.1364/AO.55.009178
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Multi-hop parallel relaying is considered in a free-space optical (FSO) communication system deploying binary phase-shift keying (BPSK) modulation under the combined effects of a gamma-gamma (GG) distribution and misalignment fading. Based on the best path selection criterion, the cumulative distribution function (CDF) of this cooperative random variable is derived. Then the performance of this optical mesh network is analyzed in detail. A Monte Carlo simulation is also conducted to demonstrate the effectiveness of the results for the average bit error rate (ABER) and outage probability. The numerical result proves that it needs a smaller average transmitted optical power to achieve the same ABER and outage probability when using the multi-hop parallel network in FSO links. Furthermore, the system use of more number of hops and cooperative paths can improve the quality of the communication. (C) 2016 Optical Society of America
引用
收藏
页码：9178 / 9184
页数：7
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