Performance Analysis of Multi-Hop UAVs Using FSO Communications Under Humidity and Sandstorms Conditions

IF 6.3 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Open Journal of the Communications Society Pub Date : 2024-10-31 DOI:10.1109/OJCOMS.2024.3489424

Mohammed Salih Mohammed Gismalla;Suhail I. Al-Dharrab;Saleh A. Alawsh;Ali H. Muqaibel

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Abstract

This paper investigates the performance of hovering unmanned aerial vehicles (UAVs) using free space optical (FSO) communications with decode-and-forward (DF) relaying. Multi-hop UAV relays are considered. The channel is modeled considering the atmospheric attenuation due to the sandstorm and relative humidity (RH), in addition to the atmospheric turbulence, angle-of-arrival (AOA) fluctuations, and pointing errors (PE). We first obtain a simplified expression for end-to-end (E2E) outage probability considering atmospheric attenuation conditions, then the impact of various parameters such as transmitted power, field of view (FOV) and optical beamwidth on E2E outage probability is incorporated. We also derive a closed form expression for the ergodic capacity and characterize the effect of different system parameters. Monte Carlo simulation is utilized to prove the analytical results. The asymptotic bound for E2E outage probability is validated to offer insights into the effects of different channel coefficients. Analysis of the results indicates that the impact of low visibility due to sandstorms is comparable to that of high RH on FSO links.

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潮湿和沙尘暴条件下使用 FSO 通信的多跳无人飞行器性能分析

本文研究了使用自由空间光学（FSO）通信和解码前向（DF）中继的悬停无人飞行器（UAV）的性能。本文考虑了多跳无人飞行器中继。除了大气湍流、到达角（AOA）波动和指向误差（PE）之外，信道建模还考虑了沙尘暴和相对湿度（RH）造成的大气衰减。我们首先获得了考虑大气衰减条件下端到端（E2E）中断概率的简化表达式，然后将传输功率、视场（FOV）和光束带宽等各种参数对 E2E 中断概率的影响纳入其中。我们还推导出了遍历容量的封闭式表达式，并描述了不同系统参数的影响。我们利用蒙特卡罗模拟来证明分析结果。验证了 E2E 中断概率的渐近界限，从而深入了解了不同信道系数的影响。结果分析表明，沙尘暴导致的低能见度对 FSO 链路的影响与高相对湿度的影响相当。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Open Journal of the Communications Society Multiple-

CiteScore

13.70

自引率

3.80%

发文量

审稿时长

10 weeks

期刊介绍： The IEEE Open Journal of the Communications Society (OJ-COMS) is an open access, all-electronic journal that publishes original high-quality manuscripts on advances in the state of the art of telecommunications systems and networks. The papers in IEEE OJ-COMS are included in Scopus. Submissions reporting new theoretical findings (including novel methods, concepts, and studies) and practical contributions (including experiments and development of prototypes) are welcome. Additionally, survey and tutorial articles are considered. The IEEE OJCOMS received its debut impact factor of 7.9 according to the Journal Citation Reports (JCR) 2023. The IEEE Open Journal of the Communications Society covers science, technology, applications and standards for information organization, collection and transfer using electronic, optical and wireless channels and networks. Some specific areas covered include: Systems and network architecture, control and management Protocols, software, and middleware Quality of service, reliability, and security Modulation, detection, coding, and signaling Switching and routing Mobile and portable communications Terminals and other end-user devices Networks for content distribution and distributed computing Communications-based distributed resources control.