Average spectral efficiency analysis of FSO communication link over atmospheric turbulence channel using various modulation techniques for UAV application

Issacniwas Swamidoss; Abdulrahman Almarzooqi; Abdullah AlSaadi AlMansoori; Slim Sayadi

doi:10.1117/12.2533084

9 October 2019 Average spectral efficiency analysis of FSO communication link over atmospheric turbulence channel using various modulation techniques for UAV application

Issacniwas Swamidoss, Abdulrahman Almarzooqi, Abdullah AlSaadi AlMansoori, Slim Sayadi

Author Affiliations +

Proceedings Volume 11153, Environmental Effects on Light Propagation and Adaptive Systems II; 111530N (2019) https://doi.org/10.1117/12.2533084
Event: SPIE Remote Sensing, 2019, Strasbourg, France

Abstract

Surveillance using aerial systems provides a different angle of monitoring, maintain security or locate wanted targets. The imaging data is live streamed to the ground using different types of datalinks. However, the large amount of imagery and video information transferring from the unmanned aerial vehicle (UAV) require high data rate for communication. A method of optical wireless communication that has a high bandwidth which can be used in the field of UAV is free space optics (FSO). FSO technology offers faster and secure data transmission. In this work, FSO channel model have been investigated pertaining to atmospheric turbulence to analyze the average spectral efficiency (ASE) using various modulation schemes such as Polarization Shift and On-Off Keying, and Coherent Optical Wireless Communication. The atmospheric turbulence channel model depends on various parameters Such as the refractive index structure, strong or weak turbulences. Presented in this work, the refractive index is manipulated to obtain the exact turbulence differences through various operational altitudes while operating the UAV. Furthermore, the misalignment error between the overall system receiver and transmitter is considered when performing the analysis. The results show the performance of the optical link in different altitudes and different modulation schemes to optimize the performance of the link.

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Issacniwas Swamidoss, Abdulrahman Almarzooqi, Abdullah AlSaadi AlMansoori, and Slim Sayadi "Average spectral efficiency analysis of FSO communication link over atmospheric turbulence channel using various modulation techniques for UAV application", Proc. SPIE 11153, Environmental Effects on Light Propagation and Adaptive Systems II, 111530N (9 October 2019); https://doi.org/10.1117/12.2533084

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KEYWORDS

Free space optics

Unmanned aerial vehicles

Atmospheric turbulence

Modulation

Atmospheric modeling

Data communications

Computer security

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