基于新型γ -卡方辐照度PDF模型的FSO系统性能分析

IF 0.7 4区物理与天体物理 Q4 OPTICS

Optica Applicata Pub Date : 2021-01-01 DOI:10.37190/oa210303

J. Todorovic, P. Spalevic, S. Panic, Bojana Milosavljević, Milan Gligorijevic

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引用次数: 1

摘要

为了提供一种新的解析可追溯的自由空间光学(FSO)通道模型来描述基于湍流的辐照度波动，遵循闪烁理论的基本原理，我们推导了一种新的统计伽玛-卡方模型的概率密度函数(PDF)的封闭表达式。此外，利用所提供的模型，研究了FSO系统在大气湍流和不对准衰落(指向误差)存在下的开关键控(OOK)传输方案的误差性能。对于这两种情况，系统接收端的平均误码率(ABER)以解析封闭形式确定。为了分析不同湍流水平以及其他相关参数对OOK调制FSO系统接收信号质量的影响，结果以图形形式呈现。

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FSO system performance analysis based on novel Gamma–Chi-square irradiance PDF model

In order to provide a novel analytically traceable free space optics (FSO) channel model for describing turbulence based irradiance fluctuations, following basic scintillation theory principles, we have derived closed-form expression for probability density function (PDF) of a new statistical Gamma–Chi-square model. Further, capitalizing on provided model, error performances of FSO system over on–off keying (OOK) transmission scheme both in the presence of atmospheric turbulence and misalignment fading (pointing error) is investigated. For both cases, the average bit error rate (ABER) at the receiving side of the system is determined in an analytically closed form. The results are graphically presented in order to analyze the impact of different levels of turbulence, as well as other relevant parameters, on the quality of the received signal in the OOK modulated FSO system.

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来源期刊

Optica Applicata 物理-光学

CiteScore

1.00

自引率

16.70%

发文量

审稿时长

4 months

期刊介绍： Acoustooptics, atmospheric and ocean optics, atomic and molecular optics, coherence and statistical optics, biooptics, colorimetry, diffraction and gratings, ellipsometry and polarimetry, fiber optics and optical communication, Fourier optics, holography, integrated optics, lasers and their applications, light detectors, light and electron beams, light sources, liquid crystals, medical optics, metamaterials, microoptics, nonlinear optics, optical and electron microscopy, optical computing, optical design and fabrication, optical imaging, optical instrumentation, optical materials, optical measurements, optical modulation, optical properties of solids and thin films, optical sensing, optical systems and their elements, optical trapping, optometry, photoelasticity, photonic crystals, photonic crystal fibers, photonic devices, physical optics, quantum optics, slow and fast light, spectroscopy, storage and processing of optical information, ultrafast optics.