A modified model of the atmospheric effects on the performance of FSO links employing single and multiple receivers

被引：17
作者：
Chaman-Motlagh, A. [1 ]
Ahmadi, V. [1 ]
Ghassemlooy, Z. [2 ]
机构：
[1] Tarbiat Modares Univ, Dept Elect & Comp Engn, Tehran, Iran
[2] Northumbria Univ, Sch Comp Engn & Informat Sci, Opt Commun Res Grp, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
来源：
JOURNAL OF MODERN OPTICS | 2010年 / 57卷 / 01期
关键词：
BER; SNR; scintillation; turbulence; M-array receivers; SPACE OPTICAL LINKS;
D O I：
10.1080/09500340903497465
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In free space optical (FSO) communication links, atmospheric effects including absorption, scattering and turbulence have significant impacts on the quality of the laser beam propagating through the free space channel. Absorption and/or scattering due to the atmospheric particles result in optical losses, whereas turbulence contributes to the intensity scintillation which can severely impair the operation of FSO links. In this paper, using a modified model we analyze the atmospheric effects on the signal-to-noise ratio (SNR) and the bit error rate (BER) performance of an FSO system. We show that for multiple detectors with the same surface area as a single detector there is a critical link range less than which the SNR decreases for larger values of M.
引用
收藏
页码：37 / 42
页数：6
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