Performance Analysis of UAV-Assisted Hybrid FSO/RF Communication Systems under Various Weather Conditions
Abstract
:1. Introduction
1.1. Related Works
1.2. Motivation and Contributions
- To our knowledge, we, firstly, propose a multi-hop parallel hybrid FSO/RF communication system architecture with and without PE based on the UAV relay.
- New mathematical expressions for the end-to-end system in terms of average bit error rate and outage probability are derived under EW turbulence and Nakagami fading channels for four binary subcarrier modulation schemes.
- The effects of different weather environments, modulation methods, receiver apertures, RF fading parameters, pointing errors, and relay structures on the performance of our considered systems are analyzed through numerical evaluationnumerical simulations. As far as we know, no existing work considered the impact of weather environments and aperture averaging on UAV-assisted FSO communication.
2. System and Channel Models
2.1. One-Hop FSO SublinkSubsystem under Various Weather Conditions
2.2. One-Hop RF SublinkSubsystem under Various Weather Conditions
2.3. One-Hop Hybrid FS0/RF System Based on a Selective Combination Scheme
3. System Performance Analysis
3.1. Average Bit Error Rate
3.2. Outage Probability
4. Numerical Results
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Weather Condition | [] | [dB/Km] | [dB/Km] | [dB/Km] |
---|---|---|---|---|
Clear air | 0 | 15.1 | ||
Haze | 0 | 15.1 | ||
Light fog | 0 | 15.1 | ||
light rain ( mm/h) | 15.1 |
Binary Modulation Scheme | p | q |
---|---|---|
Coherent binary phase shift keying (CBPSK) | 1 | |
Differential binary phase shift keying (DBPSK) | 1 | 1 |
Coherent binary frequency shift keying(CBFSK) | ||
Non-coherent binary frequency shift keying (NBFSK)(NBPSK) | 1 |
FSO Subsystem | RF Subsystem | ||
---|---|---|---|
Parameters | Value | Parameters | Value |
Wavelength, | 1550 nm | Wavelength of 60 GHz RF, | 5 mm |
Divergence angle, | 1 mrad | Nakagami fading parameter, | 2 |
Receiver aperture diameter, | 10 cm or 20 cm | Transmit antenna gain, | 44 dBi |
Responsivity, | A/W | Receive antenna gain, | 44 dBi |
Noise Variance, | Noise Variance, | dBm | |
Transmission distance, | 1 km | Oxygen attenuation, | dB/km |
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Wu, Y.; Kong, D.; Wang, Q.; Li, G. Performance Analysis of UAV-Assisted Hybrid FSO/RF Communication Systems under Various Weather Conditions. Sensors 2023, 23, 7638. https://doi.org/10.3390/s23177638
Wu Y, Kong D, Wang Q, Li G. Performance Analysis of UAV-Assisted Hybrid FSO/RF Communication Systems under Various Weather Conditions. Sensors. 2023; 23(17):7638. https://doi.org/10.3390/s23177638
Chicago/Turabian StyleWu, Yan, Dejin Kong, Qian Wang, and Gang Li. 2023. "Performance Analysis of UAV-Assisted Hybrid FSO/RF Communication Systems under Various Weather Conditions" Sensors 23, no. 17: 7638. https://doi.org/10.3390/s23177638