Effect of clear atmospheric turbulence on quality of free space optical communications in Yemen

doi:10.1007/s12200-010-0123-8

Front Optoelec Chin

2010, Vol. 3

Issue (4) : 423-428 https://doi.org/10.1007/s12200-010-0123-8

RESEARCH ARTICLE

Effect of clear atmospheric turbulence on quality of free space optical communications in Yemen

Khaleel S. ALTOWIJ¹, Abdulsalam ALKHOLIDI¹(

), Habib HAMAM²

1. Faculty of Engineering, Electrical Engineering Department, Sana’a University, Sana’a 13527, Yemen; 2. Faculty of Engineering, University of Moncton, Moncton, N.B., EIA 3E9, Canada

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Abstract

Free space optical (FSO) communication is one of the most recently developed modes of wireless communication. FSO is a technique used to convey data carried by a laser beam through the atmosphere. While FSO offers a broadband service, it requires a line of sight communication between the transmitter and receiver. The atmosphere has effects on the laser beam passing through it. For instance, the quality of data received is affected by the scattering and atmospheric turbulence. The atmospheric turbulence is caused by both temporary and special random fluctuations of the refractive index along the optical propagation path. Clear air turbulence impairs the performance of the FSO due to the fluctuation in the intensity of the laser beam. By referring to the two criteria, namely bit error rate (BER) and signal to noise ratio (SNR), this work includes analysis of the effect of atmospheric turbulence on FSO systems in Yemen by using an appropriate model.

Keywords atmospheric turbulence scintillation refractive index free space optical (FSO) communication system bit error rate (BER) signal to noise ratio (SNR)

Corresponding Author(s): ALKHOLIDI Abdulsalam,Email:abdulsalam.alkholidi@gmail.com

Issue Date: 05 December 2010

Cite this article:

Khaleel S. ALTOWIJ,Abdulsalam ALKHOLIDI,Habib HAMAM. Effect of clear atmospheric turbulence on quality of free space optical communications in Yemen[J]. Front Optoelec Chin, 2010, 3(4): 423-428.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-010-0123-8
https://academic.hep.com.cn/foe/EN/Y2010/V3/I4/423

Fig.1 Intensity fluctuations against transmission range

Fig.2 Beam spreading versus transmission range

Fig.3 Waist of beam with turbulence versus scintillation

Fig.4 SNR versus transmission range

Fig.5 BER versus transmission range

Fig.6 SNR with and without turbulence, SNR and SNR, respectively, versus transmission range

Fig.7 BER versus waist of beam with turbulence

Fig.8 BER versus transmission range for SNR and SNR

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