Author
Dabiri, M. T., Rezaee, M., Mohammadi, L., Javaherian, F., Yazdanian, V., Hasna, M. O., Uysal, Murat
Publication Date
2022-10
Publication Place
-
IEEE
Subject
Angle of arrival (AoA) fluctuations, FSO communications, Modulating retro-reflector (MRR), UAV
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1536-1276
Record ID
1988d09b-1d0b-48fe-a26c-dd2bc5aa8a5b
Library Location
Electrical & Electronics Engineering
Date
2022-10
Sample Text
Weight reduction and low power consumption are key requirements in the next generation of unmanned aerial vehicle (UAV) networks. Employing modulating retro-reflector (MRR)-based free space optical (FSO) technology is an innovative technique for UAV-to-ground communication in order to reduce the payload weight and power consumption of UAVs which leads to increased maneuverability and flight time of UAV. In this paper, we consider an MRR-based FSO system for UAV-to-ground communication. We will show that the performance of the considered system is very sensitive to tracking errors. Therefore, to assess the benefits of MRR-based UAV deployment for FSO communications, the MRR-based UAV FSO channel is characterized by taking into account tracking system errors along with UAV's orientation fluctuations, link length, UAV's height, optical beam divergence angle, effective area of MRR, atmospheric turbulence and optical channel loss in the double-pass channels. To enable effective performance analysis, tractable and closed-form expressions are derived for probability density function of end-to-end signal to noise ratio, outage probability and bit error rate of the considered system under both weak-to-moderate and moderate-to-strong atmospheric turbulence conditions. The accuracy of the analytical expressions is verified by extensive simulations. Analytical results are then used to study the relationship between the optimal system design and tracking system errors.
DOI
10.1109/TWC.2022.3167945
Cilt
21
