On the Effects of Temperature on the Performances of FSO Transmission under Qatar's Climate

Touati, Abir; Abdaoui, Abderrazak; Touati, Farid; Uysal, Murat; Bouallègue, Ammar

doi:10.1109/vtcspring.2017.8108443

Cited by 7 publications

(7 citation statements)

References 12 publications

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“…In this section, we will support the obtained results by mathematical models developed and verified by the authors in [18], which shows the effect of weather factors on FSO behavior. The models will help in relating the variation of the strength of atmospheric turbulence i.e., C n 2 with the environmental parameters.…”

Section: Closed Form Expression and Behavior Of Fso Link Based On Thesupporting

confidence: 68%

Experimental Setup to Validate the Effects of Major Environmental Parameters on the Performance of FSO Communication Link in Qatar

Khandakar

Touati

et al. 2018

Applied Sciences

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Weather conditions and chemical composition of the atmosphere are the most uncontrollable challenges for free-space optical (FSO) communications. Environmental parameters contribute directly in the characterization of atmospheric turbulence. Thus, it is very interesting to prepare a test setup to study the effect of such parameters on FSO transmissions especially in a region like Qatar, which is arid and has harsh climate. Unlike that of Europe and USA, Qatar’s climate is characterized by high temperatures throughout the year, exceeding 14 °C even in winter. The experiment was carried at Qatar University (QU) using a system that comprises of two Field Programmable Gate Array (FPGA) boards and two FSO terminals installed at 600 m apart from each other. Each terminal operates at 1550 nm and had a capacity of 1 Gb/s. On the other hand, the environment parameters were recorded using a weather station installed near the transmitter. To have a wider set of data for analysis, parameters from four different seasons were recorded and analyzed. We present a comparison between the FSO performances for the different seasons in terms of Packet Delivery Ratio (PDR). We notice a significant difference in the behavior of FSO during summer and winter seasons. Furthermore, using statistics on the data collected from the weather station and based on Blaunstein model (BKB), we correlate the FSO behavior to the variation of refractive index (Cn2) in winter. Also a closed form expression, estimated from the statistical data, has been derived to relate the PDR with environmental parameters for the summer season.

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Section: Closed Form Expression and Behavior Of Fso Link Based On Thesupporting

confidence: 68%

Experimental Setup to Validate the Effects of Major Environmental Parameters on the Performance of FSO Communication Link in Qatar

Khandakar

Touati

et al. 2018

Applied Sciences

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“…To improve the quality of the signal at different wavelengths, it is proposed to use a 4/4 system, that is, 4 receivers and 4 transmitters. In [7], the influence of temperature on the characteristics of laser beam transmission in the harsh climate of Qatar using the 2/2 system is studied. In [8], the effect of atmospheric dust of high concentration is studied using the 1/1 system, which can lead to loss of connection.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…But this raises the problem of the influence of the atmosphere on the propagation of the laser beam and the adjustment of the position of the transmitter and receiver. To solve this problem, in [6,7] it is proposed to increase the number of reception and transmission devices by 4 times and 2 times, but this will lead to a rise in price of such a system by 4 and 2 times, respectively. In [9][10][11], the attenuation of the power of a laser beam is studied under conditions of turbulence of the atmosphere of different terrain, which causes beam deformation of various types, as shown (Fig.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…Also, most of the known works do not mention the problem of loss of communication due to the need to adjust the position of the receiver. For example, during the operation of satellite-to-ground AOCL, a constant adjustment of the position of the receiving device relative to the position of the transmitter is necessary, for which the exit of the laser beam beyond the limits of the receiving lens will lead to a complete loss of communication [6][7][8][9][10][11].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Development of a method of processing images of laser beam bands with the use of parallelhierarchic networks

Tymchenko

Tverdomed

Petrovsky³

et al. 2019

EEJET

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“…Surveying the literature review of this subject is clearly displaying that, in spite of the advantages of these systems, they have individually studied the weather conditions such as fog, haze, snow, and dust. In [5] the effects of temperature on the performances of FSO transmission under Qatar's climate are studied at wavelength=1550 nm using two FSO transceivers (2T X /2R X ). In [6] studying atmospheric dust effect on the performance of the system leads to conclusion that the visibility decreases with the increase of concentration of dust when the wavelength is 1550nm using 1T X /1R X .…”

Section: Introductionmentioning

confidence: 99%

Effect of Environmental Parameters on the Performance of Optical Wireless Communications

Ali

Said²,

Yousef³

2019

International Journal of Optics

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Free space optical communication systems are the future of the communication systems which can meet the needs of the end users who are demanding high bandwidths to support high-speed communication. These merits are due to its numerous advantages as well as their better performance. This paper studies the effect of environmental parameters like rain, fog, haze, snow, and dust on the performance of optical wireless communications using Opti-system program. This work considers the effect of visibility as well as operating wavelengths on atmospheric attenuation in different weather conditions for free space optical link. For different weather conditions the max distance between transmitter and receiver can also be estimated. The system analysis depicted the better performance of the Multi-Input/Multi-Output (MIMO) configurations compared to Single Input/Single Output (SISO) at different weather conditions.

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On the Effects of Temperature on the Performances of FSO Transmission under Qatar's Climate

Cited by 7 publications

References 12 publications

Experimental Setup to Validate the Effects of Major Environmental Parameters on the Performance of FSO Communication Link in Qatar

Experimental Setup to Validate the Effects of Major Environmental Parameters on the Performance of FSO Communication Link in Qatar

Development of a method of processing images of laser beam bands with the use of parallelhierarchic networks

Effect of Environmental Parameters on the Performance of Optical Wireless Communications

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On the Effects of Temperature on the Performances of FSO Transmission under Qatar's Climate

Cited by 7 publications

References 12 publications

Experimental Setup to Validate the Effects of Major Environmental Parameters on the Performance of FSO Communication Link in Qatar

Experimental Setup to Validate the Effects of Major Environmental Parameters on the Performance of FSO Communication Link in Qatar

Development of a method of processing images of laser beam bands with the use of parallel­hierarchic networks

Effect of Environmental Parameters on the Performance of Optical Wireless Communications

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Product

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Development of a method of processing images of laser beam bands with the use of parallelhierarchic networks