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This paper proposes a UAV-assisted forwarding system based on distributed beamforming to enhance age of information (AoI) in Internet of Things (IoT). Specifically, UAVs collect and relay data between sensor nodes (SNs) and the remote base…

Artificial Intelligence · Computer Science 2025-02-14 Zifan Lang , Guixia Liu , Geng Sun , Jiahui Li , Zemin Sun , Jiacheng Wang , Victor C. M. Leung

Wireless relays can effectively extend the transmission range of information. However, if relay technology is utilized unlawfully, it can amplify potential harm. Effectively surveilling illegitimate relay links poses a challenging problem.…

Information Theory · Computer Science 2024-07-11 Qian Dan , Hongjiang Lei , Ki-Hong Park , Weijia Lei , Gaofeng Pan

Unmanned aerial vehicles (UAVs) have attracted significant interest recently in assisting wireless communication due to their high maneuverability, flexible deployment, and low cost. This paper considers a multi-UAV enabled wireless…

Information Theory · Computer Science 2018-01-10 Qingqing Wu , Yong Zeng , Rui Zhang

This paper studies a new unmanned aerial vehicle (UAV)-enabled wireless power transfer (WPT) system, where a UAV-mounted mobile energy transmitter (ET) is dispatched to deliver wireless energy to a set of on-ground energy receivers (ERs).…

Information Theory · Computer Science 2017-09-25 Jie Xu , Yong Zeng , Rui Zhang

Federated learning (FL) has become a transformative paradigm for distributed machine learning across wireless networks. However, the performance of FL is often hindered by the unreliable communication links between resource-constrained…

Signal Processing · Electrical Eng. & Systems 2025-03-28 Xuhui Zhang , Wenchao Liu , Jinke Ren , Huijun Xing , Gui Gui , Yanyan Shen , Shuguang Cui

The deployment of unmanned aerial vehicles (UAVs) is proliferating as they are effective, flexible and cost-efficient devices for a variety of applications ranging from natural disaster recovery to delivery of goods. We investigate a…

Signal Processing · Electrical Eng. & Systems 2019-09-30 Ali Rahmati , Seyyedali Hosseinalipour , Yavuz Yapici , Xiaofan He , Ismail Guvenc , Huaiyu Dai , Arupjyoti Bhuyan

This paper studies a rechargeable unmanned aerial vehicle (UAV) assisted wireless network, where a UAV is dispatched to disseminate information to a group of ground terminals (GTs) and returns to a recharging station (RS) before the…

Networking and Internet Architecture · Computer Science 2021-04-29 Yuan Liao , Vasilis Friderikos

In this paper, we investigate the downlink performance of a three-tier heterogeneous network (HetNet). The objective is to enhance the edge capacity of a macro cell by deploying unmanned aerial vehicles (UAVs) as flying base stations and…

Signal Processing · Electrical Eng. & Systems 2020-07-30 S. T. Muntaha , S. A. Hassan , H. Jung , M. S. Hossain

Unmanned Aerial Vehicles (UAVs) are increasingly used to enable wireless communications. Due to their characteristics, such as the ability to hover and carry cargo, UAVs can serve as communications nodes, including Wi-Fi Access Points and…

Networking and Internet Architecture · Computer Science 2024-06-28 Pedro Ribeiro , André Coelho , Rui Campos

Unmanned aerial vehicle (UAV)-assisted communication is a promising technology in future wireless communication networks. UAVs can not only help offload data traffic from ground base stations (GBSs), but also improve the quality of service…

Networking and Internet Architecture · Computer Science 2020-05-05 Yukuan Ji , Zhaohui Yang , Hong Shen , Wei Xu , Kezhi Wang , Xiaodai Dong

Data applications may typically tolerate a moderate delay before packet transmission between user equipment (UE) and cell begins. This delay can be taken advantage to reduce the communication distance, improve coverage probability, and…

Signal Processing · Electrical Eng. & Systems 2019-04-19 Haluk Celebi , Ismail Guvenc , Henning Schulzrinne

Unmanned Aerial Vehicles (UAVs), which are at the forefront of cutting-edge technology, have unmatched potential for pioneering applications in a wide range of disciplines. In particular, in the field of cognitive radio (CR), which is a key…

Networking and Internet Architecture · Computer Science 2022-01-25 Anas Osman , Morteza Alijani

Unmanned aerial vehicle (UAV)-enabled wireless power transfer (WPT) systems offer significant advantages in coverage and deployment flexibility, but suffer from endurance limitations due to the limited onboard energy. This paper proposes to…

Signal Processing · Electrical Eng. & Systems 2022-08-19 Hong Ren , Zhenkun Zhang , Zhangjie Peng , Li Li , Cunhua Pan

In intelligent low-altitude networks, integrating monitoring tasks into communication unmanned aerial vehicles (UAVs) can consume resources and increase handoff latency for communication links. To address this challenge, we propose a…

Signal Processing · Electrical Eng. & Systems 2025-12-17 Jiahui Liang , Wenlihan Lu , Tianyi Liu , Kang Kang , Guixin Pan , Liuqing Yang , Xinhu Zheng , Shijian Gao

Guaranteeing stringent data freshness for low-altitude unmanned aerial vehicles (UAVs) in shared spectrum forces a critical trade-off between two operational costs: the UAV's own energy consumption and the occupation of terrestrial channel…

Systems and Control · Electrical Eng. & Systems 2026-03-17 Bowen Li , Jiping Luo , Themistoklis Charalambous , Nikolaos Pappas

Modern day wireless networks have tremendously evolved driven by a sharp increase in user demands, continuously requesting more data and services. This puts significant strain on infrastructure based macro cellular networks due to the…

Networking and Internet Architecture · Computer Science 2016-11-17 Vishal Sharma , Mehdi Bennis , Rajesh Kumar

The ability to move and hover has made rotary-wing Unmanned Aerial Vehicles (UAVs) suitable platforms to act as Flying Communications Relays (FCR), aiming at providing on-demand, temporary wireless connectivity when there is no network…

Networking and Internet Architecture · Computer Science 2022-01-26 Hugo Rodrigues , André Coelho , Manuel Ricardo , Rui Campos

Mobile agent networks, such as multi-UAV systems, are constrained by limited resources. In particular, limited energy affects system performance directly, such as system lifetime. It has been demonstrated in the wireless sensor network…

Systems and Control · Computer Science 2021-12-16 Mason Thammawichai , Sujit P. Baliyarasimhuni , Eric C. Kerrigan , João B. Sousa

In this paper, we consider a single-cell multi-user orthogonal frequency division multiple access (OFDMA) network with one unmanned aerial vehicle (UAV), which works as an amplify-and-forward relay to improve the quality-of-service (QoS) of…

Information Theory · Computer Science 2021-04-23 Shuhao Zeng , Hongliang Zhang , Boya Di , Lingyang Song

The use of unmanned aerial vehicles (UAVs) as aerial communication platforms is of high practical value for future wireless systems such as 5G, especially for swift and on-demand deployment in temporary events and emergency situations.…

Information Theory · Computer Science 2018-05-21 Qingqing Wu , Liang Liu , Rui Zhang