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Spectrum sensing and the generation of 3D Radio Environment Maps (REMs) are essential for enabling spectrum sharing within cognitive radio networks. While Uncrewed Aerial Vehicles (UAVs) offer high-mobility 3D sensing, REM accuracy is…

信号处理 · 电气工程与系统科学 2026-05-26 Mushfiqur Rahman , Sung Joon Maeng , Ismail Guvenc , Chau-Wai Wong , Mihail Sichitiu , Jason A. Abrahamson , Arupjyoti Bhuyan

Low Earth orbit (LEO) satellite networks will become an integral part of the global telecommunication infrastructure. Modeling the radio-links of these networks and their interaction with existing terrestrial systems is crucial for the…

信号处理 · 电气工程与系统科学 2020-10-05 Stephan Jaeckel , Leszek Raschkowski , Lars Thiele

The usage of beamforming in Unmanned Aerial Vehicles (UAVs) has the potential of significantly improving the air-to-ground link quality. This paper presents the outcome of experimental trial of such a UAV-based beamforming system over live…

信号处理 · 电气工程与系统科学 2020-03-27 Tomasz Izydorczyk , Michel Massanet Ginard , Simon Svendsen , Gilberto Berardinelli , Preben Mogensen

Motivated by the need for ubiquitous and reliable communications in post-disaster emergency management systems (EMSs), we hereby present a novel and efficient stochastic geometry (SG) framework. This mathematical model is specifically…

系统与控制 · 电气工程与系统科学 2023-02-21 Maurilio Matracia , Mustafa A. Kishk , Mohamed-Slim Alouini

Non-terrestrial networks (NTNs) traditionally have certain limited applications. However, the recent technological advancements and manufacturing cost reduction opened up myriad applications of NTNs for 5G and beyond networks, especially…

In recent years, photogrammetry has been widely used in many areas to create photorealistic 3D virtual data representing the physical environment. The innovation of small unmanned aerial vehicles (sUAVs) has provided additional…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Meida Chen , Andrew Feng , Yu Hou , Kyle McCullough , Pratusha Bhuvana Prasad , Lucio Soibelman

In this study, we present an end-to-end pipeline capable of converting drone-captured video streams into high-fidelity 3D reconstructions with minimal latency. Unmanned aerial vehicles (UAVs) are extensively used in aerial real-time…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Christos Maikos , Georgios Angelidis , Georgios Th. Papadopoulos

The growing presence of UAVs has led operators to explore the issue of how to provide wireless service to UAVs. The achieveable service quality will be affected by a number of factors, including the type of antenna that the UAVs are…

网络与互联网体系结构 · 计算机科学 2018-07-03 Boris Galkin , Jacek Kibiłda , Luiz A. DaSilva

Mobile base stations on board unmanned aerial vehicles (UAVs) promise to deliver connectivity to those areas where the terrestrial infrastructure is overloaded, damaged, or absent. A fundamental problem in this context involves determining…

最优化与控制 · 数学 2021-09-23 Daniel Romero , Pham Q. Viet , Geert Leus

Autonomous navigation of ground robots has been widely used in indoor structured 2D environments, but there are still many challenges in outdoor 3D unstructured environments, especially in rough, uneven terrains. This paper proposed a…

机器人学 · 计算机科学 2022-09-28 Zhuozhu Jian , Zihong Lu , Xiao Zhou , Bin Lan , Anxing Xiao , Xueqian Wang , Bin Liang

This paper discusses cellular network security for unmanned aircraft systems (UASs) and provides insights into the ongoing Third Generation Partnership Project (3GPP) standardization efforts with respect to authentication and authorization,…

密码学与安全 · 计算机科学 2021-11-29 Aly Sabri Abdalla , Vuk Marojevic

The integration of non-terrestrial networks (NTN) into 5G new radio (NR) has opened up the possibility of developing a new positioning infrastructure using NR signals from Low-Earth Orbit (LEO) satellites. Compared to existing Global…

Wireless access points on unmanned aerial vehicles (UAVs) are being considered for mobile service provisioning in commercial networks. To be able to efficiently use these devices in cellular networks it is necessary to first have a…

网络与互联网体系结构 · 计算机科学 2018-01-22 Boris Galkin , Jacek Kibiłda , Luiz A. DaSilva

This paper aims to propose a three-dimensional (3D) point process that can be employed to generally deploy unmanned aerial vehicles (UAVs) in a large-scale cellular network and tractably analyze the fundamental network-wide performances of…

网络与互联网体系结构 · 计算机科学 2021-01-26 Chun-Hung Liu , Di-Chun Liang , Rung-Hung Gau

The upcoming sixth generation (6G) wireless communication network is envisioned to cover space, air, and maritime areas, in addition to urban-centered terrestrial coverage by the fifth generation (5G) network, to support intelligent…

信息论 · 计算机科学 2024-02-13 Wei Feng , Yanmin Wang , Yunfei Chen , Ning Ge , Cheng-Xiang Wang

To meet increasing data demands, service providers are considering the use of Unmanned aerial vehicles (UAVs) for delivering connectivity as aerial base stations (BSs). UAVs are especially important to provide connectivity in case of…

A recent way to model and analyze downlink cellular networks is by using random spatial models. Assuming user equipment (UE) distribution to be uniform, the analysis is performed at a typical UE located at the origin. While this method of…

信息论 · 计算机科学 2016-11-17 Harpreet S. Dhillon , Radha Krishna Ganti , Jeffrey G. Andrews

Non-geostationary (NGSO) satellite communications systems have attracted a lot of attention both from industry and academia, over the past several years. Beam placement is among the major resource allocation problems in multi-beam NGSO…

系统与控制 · 电气工程与系统科学 2023-01-20 Nariman Torkzaban , Asim Zoulkarni , Anousheh Gholami , John S. Baras

We investigate the performance of fully convolutional networks to simulate the motion and interaction of surface waves in open and closed complex geometries. We focus on a U-Net architecture and analyse how well it generalises to geometric…

机器学习 · 计算机科学 2020-12-02 Mario Lino , Chris Cantwell , Stathi Fotiadis , Eduardo Pignatelli , Anil Bharath

Surface parameterization is a fundamental geometry processing problem with rich downstream applications. Traditional approaches are designed to operate on well-behaved mesh models with high-quality triangulations that are laboriously…

计算机视觉与模式识别 · 计算机科学 2024-03-18 Qijian Zhang , Junhui Hou , Ying He