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相关论文: Hovering UAV-Based FSO Communications: Channel Mod…

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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

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

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

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

In this paper, we consider an unmanned aerial vehicle (UAV) aided mobile relaying system under a buffer constraint. We propose a new relaying protocol employing mixed free-space optical/radio frequency (FSO/RF) communication, i.e., the…

信息论 · 计算机科学 2020-07-08 Ju-Hyung Lee , Ki-Hong Park , Young-Chai Ko , Mohamed-Slim Alouini

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

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 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

A ground-to-air free-space optical link is studied for a hovering unmanned aerial vehicle (UAV) having multiple rotors. For this UAV, a four-quadrant array of photodetectors is used at the optical receiver to alleviate the adverse effect of…

信息论 · 计算机科学 2021-09-17 Hossein Safi , Akbar Dargahi , Julian Cheng

Free-space optical (FSO) communication is a promising solution to support wireless backhaul links in emerging 6G non-terrestrial networks. At the link level, pointing errors in FSO links can significantly impact capacity, making accurate…

系统与控制 · 电气工程与系统科学 2024-06-11 Hyung-Joo Moon , Chan-Byoung Chae , Kai-Kit Wong , Mohamed-Slim Alouini

In this paper, we investigate the performance of the dual-hop free space optical (FSO) communication systems under the effect of strong atmospheric turbulence together with misalignment effects (pointing error). We consider a relay assisted…

信息论 · 计算机科学 2017-09-19 Neha Mishra , D. Sriram Kumar , Pranav Kumar Jha

Unmanned aerial vehicle (UAV)-based communications is a promising new technology that can add a wide range of new capabilities to the current network infrastructure. Given the flexibility, cost-efficiency, and convenient use of UAVs, they…

信号处理 · 电气工程与系统科学 2020-01-13 Hedieh Ajam , Marzieh Najafi , Vahid Jamali , Robert Schober

In recent years, free space optical (FSO) communication has gained significant importance owing to its unique features: large bandwidth, license free spectrum, high data rate, easy and quick deployability, less power and low mass…

信息论 · 计算机科学 2015-06-17 Hemani Kaushal , Georges Kaddoum

In this work, we investigate the performance of a dual-hop multiple relays system consisting of mixed Radio-Frequency (RF)/Free Space Optical (FSO) channels. The RF channels are subject to Rayleigh fading while the optical links experience…

信号处理 · 电气工程与系统科学 2019-01-21 Elyes Balti , Brian K. Johnson

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

The integration of unmanned aerial vehicles (UAVs) and millimeter wave (mmWave) wireless systems has been recently proposed to provide high data rate aerial links for next generation wireless networks. However, establishing UAV-based mmWave…

信号处理 · 电气工程与系统科学 2019-05-07 Mohammad Taghi Dabiri , Hossein Safi , Saeedeh Parsaeefard , Walid Saad

The performance analysis of free space optical communication (FSO) systems using relays and spatial diversity at the transmitter end is presented in this paper. The impact of atmospheric turbulence and attenuation caused by different…

信息论 · 计算机科学 2017-09-28 Pranav Kumar Jha , Nitin Kachare , K Kalyani , D. Sriram Kumar

In this paper, we investigate a dual-hop relaying system, composed of radio frequency (RF) and free-space optical (FSO) link. Decode-and-forward (DF) relay is employed to integrate the first RF link and the second line-of-sight FSO links.…

网络与互联网体系结构 · 计算机科学 2022-09-26 Milica I. Petkovic , Predrag N. Ivanis , Goran T. Djordjevic

The performance analysis of free space optical communication (FSO) system using relays and spatial diversity at the source is studied in this paper. The effect of atmospheric turbulence and attenuation, caused by different weather…

信号处理 · 电气工程与系统科学 2018-04-03 Pranav Kumar Jha , Nitin Kachare , K Kalyani , D. Sriram Kumar
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