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UAV communications based on an antenna array entail a beam tracking technology for reliable link acquisition. Unlike conventional cellular communication, beam tracking in UAV communication addresses new issues such as mobility and abrupt…

Signal Processing · Electrical Eng. & Systems 2021-03-16 Ha-Lim Song , Young-Chai Ko

Extremely large aperture array (ELAA) is anticipated to serve as a pivotal feature of future multiple-input multiple-output (MIMO) systems in 6G. Near-field (NF) fading channel models are essential for reliable link-level simulation and…

Information Theory · Computer Science 2024-10-28 Jiuyu Liu , Yi Ma , Ahmed Elzanaty , Rahim Tafazolli

Unmanned aerial vehicles (UAVs) have been increasingly used in a wide area of military and civilian applications such as data collection and monitoring. A reliable network for command and control, communication, and data transfer is…

Networking and Internet Architecture · Computer Science 2021-05-11 Mohammed Gharib , Shashidhar Nandadapu , Fatemeh Afghah

The low detectability and low cost of unmanned aerial vehicles (UAVs) allow them to swarm near the radar network for effective jamming. The key to jamming is the reasonable task assignment and resource allocation of UAVs. However, the…

Information Theory · Computer Science 2025-02-27 Ruiqing Han , Tianxian Zhang , Han Zhong , Yuanhang Wang

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

High-mobility uncrewed aerial vehicle (UAV) communications in low-altitude wireless networks (LAWN) demand reliable beamforming, while conventional feedback-based schemes suffer from excessive overhead and severe misalignment under rapid…

Signal Processing · Electrical Eng. & Systems 2026-04-22 Aimin Tang , Shuhan Wang , Yin Xu

The rapid growth of the low-altitude economy has resulted in a significant increase in the number of Low, slow, and small (LLS) unmanned aerial vehicles (UAVs), raising critical challenges for secure airspace management and reliable…

Systems and Control · Electrical Eng. & Systems 2025-10-13 Tianhao Liang , Mu Jia , Tingting Zhang , Junting Chen , Longyu Zhou , Tony Q. S. Quek , Pooi-Yuen Kam

The upcoming 6G technology is expected to operate in near-field (NF) radiating conditions thanks to high-frequency and electrically large antenna arrays. Although several studies have already addressed this possibility, it is worth noting…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Ahmed Elzanaty , Jiuyu Liu , Anna Guerra , Francesco Guidi , Yi Ma , Rahim Tafazolli

Cellular-connected unmanned aerial vehicle (UAV) has attracted a surge of research interest in both academia and industry. To support aerial user equipment (UEs) in the existing cellular networks, one promising approach is to assign a…

Information Theory · Computer Science 2023-02-28 Xuesong Cai , István Z. Kovács , Jeroen Wigard , Rafhael Amorim , Fredrik Tufvesson , Preben E. Mogensen

A main challenge in providing connectivity to the low altitude unmanned aerial vehicles (UAVs) through existing cellular network arises due to the increased interference in the network. The increased altitude and favourable propagation…

Information Theory · Computer Science 2019-02-08 Vijaya Yajnanarayana , Y. -P. Eric Wang , Shiwei Gao , Siva Muruganathan , Xingqin Lin

Unmanned aerial vehicle (UAV)-assisted communication becomes a promising technique to realize the beyond fifth generation (5G) wireless networks, due to the high mobility and maneuverability of UAVs which can adapt to heterogeneous…

Signal Processing · Electrical Eng. & Systems 2020-09-17 Chang Liu , Weijie Yuan , Zhiqiang Wei , Xuemeng Liu , Derrick Wing Kwan Ng

Unmanned aerial vehicle (UAV) holds immense potential in integrated sensing and communication (ISAC) systems for the Internet of Things (IoT). In this paper, we propose a UAV-aided ISAC framework and investigate three robust power…

Systems and Control · Electrical Eng. & Systems 2023-10-26 Junchang Sun , Shuai Ma , Ruixin Yang , Yang Tingting , Shiyin Li

Unmanned aerial vehicles (UAVs) are increasingly being integrated into next-generation networks to enhance communication coverage and network capacity. However, the dynamic and mobile nature of UAVs poses significant security challenges,…

Signal Processing · Electrical Eng. & Systems 2025-07-08 Hao Zhang , Fuhui Zhou , Wei Wang , Qihui Wu , Chau Yuen

In this paper, we provide a performance analysis for practical unmanned aerial vehicle (UAV)-enabled networks. By considering both line-of-sight (LoS) and non-line-of-sight (NLoS) transmissions between aerial base stations (BSs) and ground…

Networking and Internet Architecture · Computer Science 2018-04-04 Chang Liu , Ming Ding , Chuan Ma , Qingzhi Li , Zihuai Lin , Ying-Chang Liang

This letter proposes a new full-duplex (FD) secrecy communication scheme for the unmanned aerial vehicle (UAV) and investigates its optimal design to achieve the maximum energy efficiency (EE) of the UAV. Specifically, the UAV receives the…

Information Theory · Computer Science 2019-06-19 Bin Duo , Qingqing Wu , Xiaojun Yuan , Rui Zhang

Extremely large antenna array (ELAA) is key to enhancing spectral efficiency in 6G networks. Leveraging the distributed nature of multi-unmanned aerial vehicle (UAV) systems enables the formation of distributed ELAA, which often operate in…

Signal Processing · Electrical Eng. & Systems 2025-09-10 Tianyu Huo , Jian Xiong , Yiyan Wu , Songjie Yang , Bo Liu , Wenjun Zhang

LoRa low-power wide-area network protocol has recently gained attention for deploying ad-hoc search and rescue (SaR) systems. They could be empowered by exploiting body-UAV links that enable communications between a body-worn radio and a…

Signal Processing · Electrical Eng. & Systems 2023-03-28 Giulio Maria Bianco , Gaetano Marrocco

Fluid antenna systems (FAS) have emerged as a revolutionary technology offering enhanced spatial diversity within a compact form factor. Concurrently, unmanned aerial vehicles (UAVs) are integral to future networks, necessitating channel…

Information Theory · Computer Science 2025-11-24 Xusheng Zhu , Kai-Kit Wong , Qingqing Wu , Hyundong Shin , Yangyang Zhang

This paper studies the optimal unmanned aerial vehicle (UAV) placement problem for wireless networking. The UAV operates as a flying wireless relay to provide coverage extension for a base station (BS) and deliver capacity boost to a user…

Information Theory · Computer Science 2019-11-01 Junting Chen , David Gesbert

The widespread use of uncrewed aerial vehicles (UAVs) has propelled the development of advanced techniques on countering unauthorized UAV flights. However, the resistance of legal UAVs to illegal interference remains under-addressed. This…

Signal Processing · Electrical Eng. & Systems 2025-12-29 Zhuoran Li , Zhen Gao , Boyu Ning , Zhaocheng Wang