Performance Analysis of Dual-Hop UAV-Assisted FSO Communication System with DF Protocol

Wang, Jialin; Xu, Guanjun; Zhao, Zhongyuan; Xu, Maozhe; Yu, Xiaozong; Zhang, Qinyu

doi:10.1109/wcsp55476.2022.10039045

Cited by 4 publications

(3 citation statements)

References 12 publications

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“…For example, authors in [25]- [27] present a dual-hop UAV-assisted systems using FSO communication technology. In [25], the performance of the proposed relaying system is studied under the AF relaying protocol while authors in [26] consider the DF relaying protocol. Differently, the impact of antenna orientation has been considered for GAG UAVassisted link operating on FSO in [27], where the channel distribution is obtained and utilized to obtain the OP.…”

Section: Related Workmentioning

confidence: 99%

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Performance Analysis of Dual-Hop UAV-Assisted mmWave Links Considering Orientation Fluctuations

Al-Khatab,

Althunibat,

Alhasanat

et al. 2024

IEEE Access

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In emergency scenarios, infrastructure of wireless networks is usually damaged and becomes out of service. Therefore, Unmanned Aerial Vehicles (UAVs) have been widely nominated as an alternative to provide prompt and efficient wireless connectivity. To this end, UAV-assisted communication systems are recently being under investigation. In this paper, the focus is on UAV-assisted dual-hop links in which the source, relay and destination can be either ground-based or aerial nodes. Specifically, the paper analyzes the performance of these links in terms of the outage probability (OP) and the bit error rate (BER) considering eight different setups of dual-hop UAV-assisted links operating over the millimeter wave (mmWave) band. Unlike others, the performance analysis is conducted considering practical models of the channel fading, path loss, antennas gain and UAVs' fluctuations. A generalized mathematical framework is followed to obtain the cumulative distribution function (CDF) and the probability density function (pdf) of the overall signal-to-noise ratio (SNR), which are utilized to characterize closed form expressions for the average OP and BER for all proposed setups. Analytical results are validated by Monte Carlo simulations which investigate the role of many setup parameters including the number of antenna elements, the fluctuation intensity, the transmit power and the modulation order. Moreover, results indicate that increasing the number of aerial entities in the link negatively affects its performance due to the impact of the fluctuations on the directional antennas in the mmWave band.

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Section: Related Workmentioning

confidence: 99%

“…is the hyber-geometric Gauss function. Finally, the average BER SD can be obtained by substituting α ℓ−ℓ ′ from (32) for both links in (26).…”

Section: B Ber Analysismentioning

confidence: 99%

Performance Analysis of Dual-Hop UAV-Assisted mmWave Links Considering Orientation Fluctuations

Al-Khatab,

Althunibat,

Alhasanat

et al. 2024

IEEE Access

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“…In [6], the authors presented an AF-based high-altitude platform station (HAPS) FSO system over a GG channel. Using unmanned aerial vehicles (UAVs) as a relay in a dualhop FSO system was considered in [7]. Furthermore, many works have studied the integration of FSO with radio frequency (RF) communication, for various applications, such as terrestrial, airborne, and satellite communication [8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Dual-Hop DF Multi-Relay FSO System with Adaptive Modulation

Alathwary,

Altubaishi

2023

Applied Sciences

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The signal quality in high-bandwidth free space optical (FSO) systems deteriorates due to atmospheric turbulence and pointing errors. Employing techniques such as adaptive transmission and relay selection (RS) can mitigate their effects. This paper analyzes the performance of a dual-hop decode-and-forward multi-relay FSO system with an adaptive M-ary phase shift keying scheme. This analysis is based on the recently proposed Fisher–Snedecor F channel model and considers the impact of pointing errors. We propose two partial relay selection schemes based on the source-to-relay or relay-to-destination channel state information to reduce the complexity of the optimal relay selection scheme. In this investigation, we derive closed-form expressions for the outage probability, modulation level selection probability, and spectral efficiency (SE) and compare the performance of the proposed RS schemes under balanced and unbalanced link cases. We observe an improvement in the SE with an increase in the number of modulation levels and the number of relays. Moreover, it is noted that the performance of the system can be restricted by the quality of either the source-to-relay or the relay-to-destination link, even if the quality of the other link is perfect. Finally, the outcomes obtained through the derived expressions are validated using Monte Carlo simulations.

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A Review on Deployment of UAV-FSO System for High-Speed Communication

Tumma,

Kappala

2024

IEEE Access

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Performance Analysis of Dual-Hop UAV-Assisted FSO Communication System with DF Protocol

Cited by 4 publications

References 12 publications

Performance Analysis of Dual-Hop UAV-Assisted mmWave Links Considering Orientation Fluctuations

Performance Analysis of Dual-Hop UAV-Assisted mmWave Links Considering Orientation Fluctuations

Performance Analysis of Dual-Hop DF Multi-Relay FSO System with Adaptive Modulation

A Review on Deployment of UAV-FSO System for High-Speed Communication

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