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Radio frequency (RF) communications offer reliable but low data rates and energy-inefficient satellite links, while free-space optical (FSO) promises high bandwidth but struggles with disturbances imposed by atmospheric effects. A hybrid…

Systems and Control · Electrical Eng. & Systems 2024-10-24 Mostafa Ibrahim , Arsalan Ahmad , Sabit Ekin , Peter LoPresti , Serhat Altunc , Obadiah Kegege , John F. O'Hara

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…

Signal Processing · Electrical Eng. & Systems 2021-02-19 Hossein Safi , Akbar Dargahi

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…

Information Theory · Computer Science 2020-07-08 Ju-Hyung Lee , Ki-Hong Park , Young-Chai Ko , Mohamed-Slim Alouini

Modulating retroreflectors (MRRs) offer a promising pathway to low-complexity and energy efficient asymmetric optical inter-satellite link (OISL) for small spacecrafts, such as CubeSats. In this paper, we develop a unified statistical…

Optics · Physics 2026-01-21 Makafui Avevor , Hossein Safi , Harald Haas , Iman Tavakkolnia

This paper presents a theoretical framework to analyze the performance of integrated unmanned aerial vehicle (UAV)-intelligent reflecting surface (IRS) relaying system in which IRS provides an additional degree of freedom combined with the…

Signal Processing · Electrical Eng. & Systems 2020-06-22 Taniya Shafique , Hina Tabassum , Ekram Hossain

In recent years, unmanned aerial vehicles (UAVs) have become a key role in wireless communication networks due to their flexibility and dynamic adaptability. However, the openness of UAV-based communications leads to security and privacy…

Signal Processing · Electrical Eng. & Systems 2025-12-11 Chong Huang , Gaojie Chen , Zhuoao Xu , Jing Zhu , Taisong Pan , Rahim Tafazolli , Wei Huang

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…

Optics · Physics 2012-03-15 Bobby Barua , Tanzia Afrin Haque , Md. Rezwan Islam

This paper investigates performance of a relay assisted hybrid Free Space Optical / Radio Frequency (FSO/RF) communication system. The proposed structure is particularly recommended anywhere that direct RF communication between mobile users…

Signal Processing · Electrical Eng. & Systems 2019-05-22 Mohammad Ali Amirabadi

This paper introduces a Nonlinear Model Predictive Control (NMPC) framework for communication-aware motion planning of Multi-Rotor Aerial Vehicles (MRAVs) using Free-Space Optical (FSO) links. The scenario involves MRAVs equipped with…

Robotics · Computer Science 2026-01-30 Giuseppe Silano , Daniel Bonilla Licea , Hajar El Hammouti , Martin Saska

This paper develops a comprehensive analytical framework for modeling and performance evaluation of unmanned aerial vehicles (UAVs)-to-ground quantum communication links, incorporating key physical impairments such as beam divergence,…

Signal Processing · Electrical Eng. & Systems 2025-06-26 Mohammad Taghi Dabiri , Mazen Hasna , Saif Al-Kuwari , Khalid Qaraqe

Interest in free-space optics (FSO) is rapidly growing as a potential solution for the backhaul of next-generation mobile or low-orbit satellite communications. Various techniques have been suggested for employing an intelligent reflecting…

Signal Processing · Electrical Eng. & Systems 2022-04-21 Junghoon Noh , Byungju Lee

In this work, we consider the performance analysis of the uplink cellular networks with free space optics (FSO) backhauling. The user equipment (UE) communicates with the nearest Base Station (BS) in first slot while in second slot, the BS…

Information Theory · Computer Science 2020-10-29 Elyes Balti , Brian K. Johnson

In this work, a hybrid free-space optics (FSO)/ teraHertz (THz) based backhaul network is considered to provide high-data rate reliable communication to the terrestrial mobile users (MUs) operating at millimeter wave (mmWave) bands. The FSO…

Signal Processing · Electrical Eng. & Systems 2022-11-14 Praveen Kumar Singya , Behrooz Makki , Antonio D'Errico , Mohamed-Slim Alouini

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…

Signal Processing · Electrical Eng. & Systems 2018-02-23 Mohammad Ali Amirabadi , Vahid Tabataba Vakili

In this paper, a novel approach that uses an unmanned aerial vehicle (UAV)-carried intelligent reflector (IR) is proposed to enhance the performance of millimeter wave (mmW) networks. In particular, the UAV-IR is used to intelligently…

Information Theory · Computer Science 2019-08-21 Qianqian Zhang , Walid Saad , Mehdi Bennis

In recent years, free space optical 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 requirements.…

Information Theory · Computer Science 2017-05-31 Hemani Kaushal , Georges Kaddoum

The radio-frequency (RF) technology is a scalable solution for the backhaul planning. However, its performance is limited in terms of data rate and latency. Free Space Optical (FSO) backhaul, on the other hand, offers a higher data rate but…

Information Theory · Computer Science 2015-11-03 Ahmed Douik , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Despite the promising gains, free-space optical (FSO) communication is severely influenced by atmospheric turbulence and pointing error issues, which make its practical design a bit challenging. In this paper, with the aim to increase the…

Information Theory · Computer Science 2020-12-02 Liang Yang , Wang Guo , Daniel Benevides da Costa , Mohamed-Slim Alouini

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…

Information Theory · Computer Science 2021-09-17 Hossein Safi , Akbar Dargahi , Julian Cheng

Coherent free-space optical (FSO) communication is recognized as a key enabler for ultra-high-capacity fronthaul and backhaul links in next-generation wireless networks. Spectrally efficient $M$-ary quadrature amplitude modulation (MQAM)…

Information Theory · Computer Science 2025-12-22 Himani Verma , Kamal Singh , Ranjan K. Mallik