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Ergodic Capacity Analysis of UAV-Based FSO Links Over Foggy Channelsopen access

Authors
Jung, Kug-JinNam, Sung SikAlouini, Mohamed-SlimKo, Young-Chai
Issue Date
7월-2022
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Atmospheric modeling; Probability density function; Autonomous aerial vehicles; Optical losses; Optical beams; Upper bound; Signal to noise ratio; Free space optics (FSO); unmanned aerial vehicle (UAV); foggy channel; ergodic capacity
Citation
IEEE WIRELESS COMMUNICATIONS LETTERS, v.11, no.7, pp.1483 - 1487
Indexed
SCIE
SCOPUS
Journal Title
IEEE WIRELESS COMMUNICATIONS LETTERS
Volume
11
Number
7
Start Page
1483
End Page
1487
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/143372
DOI
10.1109/LWC.2022.3175805
ISSN
2162-2337
Abstract
In this letter, we investigate the ergodic capacity of unmanned aerial vehicle (UAV)-based free space optics (FSO) links over random foggy channel. More specifically, we derive composite probability density function (PDF) and close approximation for the moments of the composite PDF using the statistical model of a UAV-based 3D pointing error and a random foggy channel. With it, we obtain upper bound and asymptotic approximation of the ergodic capacity for the two possible detection techniques of intensity modulation/direct detection (IM/DD) and heterodyne detection at high and low signal-to-noise ratio (SNR) regimes. The numerical results confirm all the presented analytic results via computer-based Monte-Carlo simulations.
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