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In this paper, we characterize the performance of a three-dimensional (3D) two-hop cellular network in which terrestrial base stations (BSs) coexist with unmanned aerial vehicles (UAVs) to serve a set of ground user equipment (UE). In…

信息论 · 计算机科学 2021-11-30 Morteza Banagar , Harpreet S. Dhillon

To provide a reliable wireless uplink for users in a given ground area, one can deploy Unmanned Aerial Vehicles (UAVs) as base stations (BSs). In another application, one can use UAVs to collect data from sensors on the ground. For a…

信息论 · 计算机科学 2019-11-19 Jun Guo , Philipp Walk , Hamid Jafarkhani

Providing seamless connectivity to unmanned aerial vehicle user equipments (UAV-UEs) is very challenging due to the encountered line-of-sight interference and reduced gains of down-tilted base station (BS) antennas. For instance, as the…

信息论 · 计算机科学 2020-02-04 Ramy Amer , Walid Saad , Boris Galkin , Nicola Marchetti

Integrating unmanned aerial vehicles (UAVs) into the cellular network as new aerial users is a promising solution to meet their ever-increasing communication demands in a plethora of applications. Due to the high UAV altitude, the channels…

信息论 · 计算机科学 2018-08-02 Liang Liu , Shuowen Zhang , Rui Zhang

In this paper, the intelligent reflecting surface (IRS)-aided unmanned aerial vehicle (UAV) communication system is studied, where the UAV is deployed to serve the user equipment (UE) with the assistance of multiple IRSs mounted on several…

信号处理 · 电气工程与系统科学 2022-08-31 Liang Wang , Kezhi Wang , Cunhua Pan , Nauman Aslam

Aerial base stations are a promising technology to increase the capabilities of the existing communication networks. However, the existing analytical frameworks do not sufficiently characterize the impact of ground interferers on the aerial…

网络与互联网体系结构 · 计算机科学 2017-11-07 M. M. Azari , F. Rosas , A. Chiumento , A. Ligata , S. Pollin

This paper investigates an aerial reconfigurable intelligent surface (RIS)-aided communication system under the probabilistic line-of-sight (LoS) channel, where an unmanned aerial vehicle (UAV) equipped with an RIS is deployed to assist two…

信号处理 · 电气工程与系统科学 2022-04-12 Yifan Liu , Bin Duo , Qingqing Wu , Xiaojun Yuan , Jun Li , Yonghui LI

In this paper, we consider a novel cellular network for aerial users, which is composed of dedicated base stations (BSs), whose antennas are directed towards aerial users, and traditional terrestrial BSs (TBSs). Besides, the dedicated BSs…

系统与控制 · 电气工程与系统科学 2023-04-07 Yujie Qin , Mustafa A. Kishk , Mohamed-Slim Alouini

Unmanned autonomous vehicles (UAVs) rely on effective path planning and tracking control to accomplish complex tasks in various domains. Reinforcement Learning (RL) methods are becoming increasingly popular in control applications, as they…

系统与控制 · 电气工程与系统科学 2023-08-29 Angela Chen , Konstantinos Mitsopoulos , Raffaele Romagnoli

In this paper, we employ multiple UAVs coordinated by a base station (BS) to help the ground users (GUs) to offload their sensing data. Different UAVs can adapt their trajectories and network formation to expedite data transmissions via…

系统与控制 · 电气工程与系统科学 2022-12-29 Shimin Gong , Meng Wang , Bo Gu , Wenjie Zhang , Dinh Thai Hoang , Dusit Niyato

In this paper, a novel machine learning (ML) framework is proposed for enabling a predictive, efficient deployment of unmanned aerial vehicles (UAVs), acting as aerial base stations (BSs), to provide on-demand wireless service to cellular…

信号处理 · 电气工程与系统科学 2018-05-02 Qianqian Zhang , Mohammad Mozaffari , Walid Saad , Mehdi Bennis , Merouane Debbah

Providing connectivity to unmanned aerial vehicle-user equipments such as drones or flying taxis is a major challenge for tomorrow cellular systems. In this paper, the use of coordinated multi-point transmission for providing seamless…

信息论 · 计算机科学 2019-08-22 Ramy Amer , Walid Saad , Nicola Marchetti

Massive multiple-input multiple-output (MIMO) is a promising technology for enabling cellular-connected unmanned aerial vehicle (UAV) communications in the future. Equipped with full-dimensional large arrays, ground base stations (GBSs) can…

信息论 · 计算机科学 2020-10-14 Yi Huang , Qingqing Wu , Rui Lu , Xiaoming Peng , Rui Zhang

Low-altitude economy includes the application of unmanned aerial vehicles (UAVs) serving ground robots. This paper investigates the 3-dimensional (3D) trajectory and communication optimization for low-altitude air-ground cooperation…

信息论 · 计算机科学 2025-09-16 Menghao Hu , Tong Zhang , Shuai Wang , Chiya Zhang , Changyang She , Gaojie Chen , Miaowen Wen

Unmanned aerial vehicles (UAVs) are promising for providing communication services due to their advantages in cost and mobility, especially in the context of the emerging Metaverse and Internet of Things (IoT). This paper considers a…

机器学习 · 计算机科学 2023-05-31 Peiyuan Si , Liangxin Qian , Jun Zhao , Kwok-Yan Lam

Cooperative communication using unmanned aerial vehicles (UAVs) is a promising technology for infrastructureless wireless networks. One of the key challenges in UAV based communications is the backhaul throughput. In this paper, we propose…

信号处理 · 电气工程与系统科学 2018-11-07 Samer Hanna , Han Yan , Danijela Cabric

Unmanned aerial vehicles (UAVs) have been successfully adopted to enhance the flexibility and robustness of wireless communication networks. And recently, the reconfigurable intelligent surface (RIS) technology has been paid increasing…

系统与控制 · 电气工程与系统科学 2023-01-02 Mohsen Eskandari , Hailong Huang , Andrey V. Savkin , Wei Ni

Suitably equipped with cameras and sensors, uncrewed aerial vehicles (UAVs) can be instrumental for wildfire prediction, tracking, and monitoring, provided that uninterrupted connectivity can be guaranteed even if some of the ground access…

信号处理 · 电气工程与系统科学 2024-07-09 Carles Diaz-Vilor , Angel Lozano , Hamid Jafarkhani

This paper investigates a novel unmanned aerial vehicles (UAVs) secure communication system with the assistance of reconfigurable intelligent surfaces (RISs), where an UAV and a ground user communicate with each other, while an eavesdropper…

信息论 · 计算机科学 2021-04-29 Li Sixian , Duo Bin , Marco Di Renzo , Tao Meixia , Yuan Xiaojun

By using wireless connectivity through cellular base stations (BSs), swarms of unmanned aerial vehicles (UAVs) can provide a plethora of services ranging from delivery of goods to surveillance. In particular, UAVs in a swarm can utilize…

信号处理 · 电气工程与系统科学 2019-06-12 Tengchan Zeng , Mohammad Mozaffari , Omid Semiari , Walid Saad , Mehdi Bennis , Merouane Debbah