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To provide high data rate aerial links for 5G and beyond wireless networks, the integration of free-space optical (FSO) communications and aerial platforms has been recently suggested as a practical solution. To fully reap the benefit of…

信号处理 · 电气工程与系统科学 2021-02-19 Hossein Safi , Akbar Dargahi

Relay-assisted free-space optical (FSO) communication systems are exploited as a means to mitigate the limiting effects of the turbulence induced atmospheric scintillation. However, conventional ground relays are stationary, and their…

信息论 · 计算机科学 2021-04-13 Jin-Yuan Wang , Yang Ma , Rong-Rong Lu , Jun-Bo Wang , Min Lin , Julian Cheng

In this paper, we investigate the statistics of the free space optics (FSO) communication channel between a hovering unmanned aerial vehicle (UAV) and a central unit. Two unique characteristics make UAV-based FSO systems significantly…

信号处理 · 电气工程与系统科学 2020-03-17 Marzieh Najafi , Hedieh Ajam , Vahid Jamali , Panagiotis D. Diamantoulakis , George K. Karagiannidis , Robert Schober

Integrating high altitude platforms (HAPs) and free-space optical (FSO) communications is a promising solution to establish high data rate aerial links for the next-generation wireless networks. However, practical limitations such as…

信号处理 · 电气工程与系统科学 2023-07-19 Hossein Safi , Akbar Dargahi , Julian Cheng , Majid Safari

Performance of Free Space Optical (FSO) communication system is affected by atmospheric turbulences and pointing errors. These effects can easily be mitigated by adapting natural system parameters such as wavelength. In this paper,…

信号处理 · 电气工程与系统科学 2019-02-27 Mohammad Ali Amirabadi

The channel modeling of unnamed aerial vehicle (UAV)-based free-space optical (FSO) links with nonzero boresight pointing error is the subject of this paper. In particular, utilizing log-normal turbulence model, we propose a novel…

信号处理 · 电气工程与系统科学 2020-04-22 Mohammad Taghi Dabiri , Mohsen Rezaee , Imran Shafique Ansari

The increasing demand for wireless communication services has led to the development of non-terrestrial networks, which enables various air and space applications. Free-space optical (FSO) communication is considered one of the essential…

信号处理 · 电气工程与系统科学 2023-09-21 Hyung-Joo Moon , Chan-Byoung Chae , Kai-Kit Wong , Mohamed-Slim Alouini

Free-space optical (FSO) communication has emerged as a promising technology for inter-satellite links (ISLs) due to its high data rate, low power consumption, and reduced interference. However, the performance of inter-satellite FSO…

信息论 · 计算机科学 2025-11-05 Minje Kim , Hongjae Nam , Beomsoo Ko , Hyeongjun Park , Hwanjin Kim , Dong-Hyun Jung , Junil Choi

In this work, performance of a multi-antenna multiuser unmanned aerial vehicle (UAV) assisted terrestrial-satellite communication system over mixed free space optics (FSO)/ radio frequency (RF) channels is analyzed. Downlink transmission…

信号处理 · 电气工程与系统科学 2021-09-14 Praveen Kumar Singya , Mohamed-Slim Alouini

Recent advances in small-scale unmanned aerial vehicles (UAVs) have opened up new horizons for establishing UAV-based free-space optical (FSO) links. However, FSO technology requires precise beam alignment while random fluctuations of…

信号处理 · 电气工程与系统科学 2019-04-09 Hossein Safi , Akbar Dargahi , Julian Cheng

Weight reduction and low power consumption are key requirements in the next generation of unmanned aerial vehicle (UAV) networks. Employing modulating retro-reflector (MRR)-based free space optical (FSO) technology is an innovative…

信号处理 · 电气工程与系统科学 2022-03-15 Mohammad Taghi Dabiri , Mohsen Rezaee , Leila Mohammadi , Farhang Javaherian , Vahid Yazdanian , Mazen Omar Hasna , Murat Uysal

Free-space optical communication is emerging as a low-power, low-cost, and high data rate alternative to radio-frequency communication in short-to medium-range applications. However, it requires a close-to-line-of-sight link between the…

系统与控制 · 电气工程与系统科学 2021-02-10 I. N'Doye , W. Cai , A. Alalwan , X. Sun , W. G. Headary , M. -S. Alouini , B. -S. Ooi , T. -M. Laleg-Kirati

Directional links in free-space optical (FSO), millimeter-wave (mmWave), and terahertz (THz) systems are a cornerstone of emerging 6G networks, yet their reliability is fundamentally limited by pointing errors and misalignment. Existing…

According to the physical phenomena of atmospheric channels and wave propagation, performance of wireless communication systems can be optimized by simply adjusting its parameters. This way is more economically favorable than consuming…

信号处理 · 电气工程与系统科学 2018-02-23 Mohammad Ali Amirabadi , Vahid Tabataba Vakili

In this work, we address the trajectory optimization of a fixed-wing unmanned aerial vehicle (UAV) using free space optical communication (FSOC). Here, we focus on maximizing the flight time of the UAV by considering practical constraints…

信息论 · 计算机科学 2019-12-18 Ju-Hyung Lee , Ki-Hong Park , Young-Chai Ko , Mohamed-Slim Alouini

Numerous researchers have studied innovations in future sixth-generation (6G) wireless communications. Indeed, a critical issue that has emerged is to contend with society's insatiable demand for high data rates and massive 6G connectivity.…

In this correspondence, we propose a diversity-achieving retroreflector-based fine tracking system for free-space optical (FSO) communications. We show that multiple retroreflectors deployed around the communication telescope at the aerial…

信息论 · 计算机科学 2023-03-17 Hyung-Joo Moon , Chan-Byoung Chae , Mohamed-Slim Alouini

In this work, the performance analysis of a dual-hop relay transmission system composed of asymmetric radio-frequency (RF)/free-space optical (FSO) links with pointing errors is presented. More specifically, we build on the system model…

信息论 · 计算机科学 2013-02-19 Imran Shafique Ansari , Ferkan Yilmaz , Mohamed-Slim Alouini

Free space optics (FSO) is a promising solution for the need to very high data rate point-to point communication. FSO communication technology became popular due to its large bandwidth potential, unlicensed spectrum, excellent security and…

光学 · 物理学 2012-03-15 Bobby Barua , Tanzia Afrin Haque , Md. Rezwan Islam

Recently, free-space optical (FSO) communication systems have obtained a wide range of applications for communications between unmanned aerial vehicles (UAVs) because they offer several advantages with respect to the traditional RF…

信号处理 · 电气工程与系统科学 2021-06-30 Mohammad Taghi Dabiri , Seyed Mohammad Sajad Sadough , Himan Savojbolaghchi
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