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Ergodic Capacity Analysis of UAV-based FSO Links over Foggy Channelsopen access
- Issue Date
- Jul-2022
- Publisher
- Institute of Electrical and Electronics Engineers Inc.
- Keywords
- Atmospheric modeling; Autonomous aerial vehicles; ergodic capacity.; foggy channel; free space optics (FSO); Optical beams; Optical losses; Probability density function; Signal to noise ratio; unmanned aerial vehicle (UAV); Upper bound
- Citation
- IEEE Wireless Communications Letters, v.11, no.7, pp.1483 - 1487
- Journal Title
- IEEE Wireless Communications Letters
- Volume
- 11
- Number
- 7
- Start Page
- 1483
- End Page
- 1487
- ISSN
- 2162-2337
- Abstract
- In this paper, 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. IEEE
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