Efficiency of complex modulation methods in coherent free-space optical links

被引：9
|
作者：
Belmonte, Aniceto [1 ]
Kahn, Joseph M. [2 ]
机构：
[1] Tech Univ Catalonia, Dept Signal Theory & Commun, Barcelona 08034, Spain
[2] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA
来源：
OPTICS EXPRESS | 2010年 / 18卷 / 04期
关键词：
PERFORMANCE;
D O I：
10.1364/OE.18.003928
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the performance of various binary and nonbinary modulation methods applied to coherent laser communication through the turbulent atmosphere. We compare the spectral efficiencies and SNR efficiencies of complex modulations, and consider options for atmospheric compensation, including phase correction and diversity combining techniques. Our analysis shows that high communication rates require receivers with good sensitivity along with some technique to mitigate the effect of atmospheric fading. (C) 2010 Optical Society of America
引用
收藏
页码：3928 / 3937
页数：10
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