A Simple Statistical Model for Turbulence-Induced Fading in Free-Space Optical Systems

被引：0

作者：

Chatzidiamantis, Nestor D. ^{[1
]}

Sandalidis, Harilaos G. ^{[2
]}

Karagiannidis, George K. ^{[1
]}

Matthaiou, Michail ^{[3
]}

机构：

[1] Aristotle Univ Thessaloniki, Dept Elect & Comp Engn, GR-54006 Thessaloniki, Greece

[2] Univ Cent Greece, Comp Sci & Biomed Informat, Lamia, Greece

[3] Tech Univ Munich, Inst Circuit Theory & Signal Processing, Munich, Germany

来源：

2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS - ICC 2010 | 2010年

关键词：

TRANSMISSION; PERFORMANCE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we propose the Inverse Gaussian (IG) distribution, as a less complex alternative to Log-normal (LN), to describe turbulence-induced fading in free-space optical (FSO) systems operating in weak turbulence conditions and/or in the presence of a large amount of aperture averaging. By conducting goodness of fit tests, we define the range of values of the scintillation index, where the two distributions approximate each other, with a certain significance level. The efficiency of the new model is pointed out by deriving analytical expressions for the calculation of the bit-error rate of two typical FSO systems; an intensity-modulation/direct detection FSO system with M-ary pulse position modulation and a heterodyne FSO system with differential phase shift keying. Numerical examples are provided to clearly illustrate the accuracy of the proposed approach in the weak turbulence regime.

引用

页数：5

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