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Unmanned aerial vehicles (UAVs) can provide wireless access to terrestrial users, regardless of geographical constraints, and will be an important part of future communication systems. In this paper, a multi-user downlink dual-UAVs enabled…

信息论 · 计算机科学 2023-10-24 Hongjiang Lei , Jiacheng Jiang , Imran Shafique Ansari , Gaofeng Pan , Mohamed-Slim Alouini

A novel movable antenna (MA)-aided secure transmission framework is proposed to enhance the secrecy transmission rate without relying on the eavesdropper's channel state information. Within this framework, a joint beamforming and jamming…

信号处理 · 电气工程与系统科学 2024-12-30 Zhenqiao Cheng , Chongjun Ouyang , Xingqi Zhang

This paper investigates a novel communication paradigm employing movable antennas (MAs) within a multiple-input single-output (MISO) non-orthogonal multiple access (NOMA) downlink framework, where users are equipped with MAs. Initially,…

信息论 · 计算机科学 2024-08-09 Yufeng Zhou , Wen Chen , Qingqing Wu , Xusheng Zhu , Nan Cheng

Many problems can be viewed as forms of geospatial search aided by aerial imagery, with examples ranging from detecting poaching activity to human trafficking. We model this class of problems in a visual active search (VAS) framework, which…

计算机视觉与模式识别 · 计算机科学 2023-10-31 Anindya Sarkar , Michael Lanier , Scott Alfeld , Jiarui Feng , Roman Garnett , Nathan Jacobs , Yevgeniy Vorobeychik

This paper presents a novel control strategy for drone networks to improve the quality of 3D structures reconstructed from aerial images by drones. Unlike the existing coverage control strategies for this purpose, our proposed approach…

最优化与控制 · 数学 2024-04-23 Zhiyuan Lu , Muhammad Hanif , Takumi Shimizu , Takeshi Hatanaka

This paper proposes a distributed coverage control strategy for quadcopters equipped with downward-facing cameras that prevents the appearance of unmonitored areas in between the quadcopters' fields of view (FOVs). We derive a necessary and…

系统与控制 · 电气工程与系统科学 2024-01-05 Riku Funada , María Santos , Ryuichi Maniwa , Junya Yamauchi , Masayuki Fujita , Mitsuji Sampei , Magnus Egerstedt

This research aims at developing path and motion planning algorithms for a tethered Unmanned Aerial Vehicle (UAV) to visually assist a teleoperated primary robot in unstructured or confined environments. The emerging state of the practice…

机器人学 · 计算机科学 2020-07-21 Xuesu Xiao

When the concept of fluid antenna system (FAS) is applied to multiple-input multiple-output (MIMO) systems, this gives rise to MIMO-FAS, a.k.a.~fluid MIMO. Under rich scattering, the spatial correlation matrices are governed by the…

信号处理 · 电气工程与系统科学 2026-03-10 Tuo Wu , Kai-Kit Wong , Baiyang Liu , Kin-Fai Tong , Hyundong Shin

In this paper, we consider the problem of covering a plane region with unit discs. We present an improved upper bound and the first nontrivial lower bound on the number of discs needed for such a covering, depending on the area and…

计算几何 · 计算机科学 2021-08-03 Shai Gul , Reuven Cohen , Simi Haber

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

信息论 · 计算机科学 2017-04-10 Qingqing Wu , Yong Zeng , Rui Zhang

In this paper, we present a vision based collaborative localization framework for groups of micro aerial vehicles (MAV). The vehicles are each assumed to be equipped with a forward-facing monocular camera, and to be capable of communicating…

机器人学 · 计算机科学 2018-04-10 Sai Vemprala , Srikanth Saripalli

We present a novel control strategy for a team of unmanned aerial vehicles (UAVs) to autonomously achieve a desired formation using only visual feedback provided by the UAV's onboard cameras. This effectively eliminates the need for global…

机器人学 · 计算机科学 2018-09-05 Kaveh Fathian , Emily Doucette , J. Willard Curtis , Nicholas R. Gans

In this paper, we study unmanned aerial vehicle (UAV) assisted mobile edge computing (MEC) with the objective to optimize computation offloading with minimum UAV energy consumption. In the considered scenario, a UAV plays the role of an…

网络与互联网体系结构 · 计算机科学 2020-07-31 Mushu Li , Nan Cheng , Jie Gao , Yinlu Wang , Lian Zhao , Xuemin , Shen

The deployment of aerial base stations (ABSs) on unmanned aerial vehicles (UAVs) presents a promising solution for extending cellular connectivity to areas where terrestrial infrastructure is overloaded, damaged, or absent. A pivotal…

最优化与控制 · 数学 2024-04-12 Daniel Romero , Pham Q. Viet , Raju Shrestha

We address a dynamic covering location problem of an Unmanned Aerial Vehicle Base Station (UAV-BS), where the location sequence of a single UAV-BS in a wireless communication network is determined to satisfy data demand arising from ground…

最优化与控制 · 数学 2021-01-13 Cihan Tugrul Cicek , Zuo-Jun Max Shen , Hakan Gultekin , Bulent Tavli

We propose an online iterative algorithm to optimize a convex cover to under-approximate the free space for autonomous navigation to delineate Safe Flight Corridors (SFC). The convex cover consists of a set of polytopes such that the union…

机器人学 · 计算机科学 2025-03-28 Yuwei Wu , Igor Spasojevic , Pratik Chaudhari , Vijay Kumar

Movable antenna (MA) has been recently proposed as a promising candidate technology for the next generation wireless communication systems due to its significant capability of reconfiguring wireless channels via antenna movement. In this…

信号处理 · 电气工程与系统科学 2025-01-17 Nianzu Li , Peiran Wu , Boyu Ning , Lipeng Zhu

This paper presents a strategy to guide a mobile ground robot equipped with a camera or depth sensor, in order to autonomously map the visible part of a bounded three-dimensional structure. We describe motion planning algorithms that…

机器人学 · 计算机科学 2017-11-15 Manikandasriram Srinivasan Ramanagopal , André Phu-Van Nguyen , Jerome Le Ny

Movable antenna (MA) systems have emerged as a promising technology for future wireless communication systems. The movement of antennas gives rise to mutual coupling (MC) effects, which have been previously ignored and can be exploited to…

信息论 · 计算机科学 2026-03-16 Tianyi Liao , Wei Guo , Jun Qian , Shenghui Song , Jun Zhang , Khaled B. Letaief

This work investigates the coverage control problem over a static, compact, and convex workspace and develops a hybrid extension of the continuous-time Lloyd algorithm. Each agent in a multi-agent system (MAS) is equipped with a timer…

系统与控制 · 电气工程与系统科学 2024-11-13 Federico M. Zegers , Sean Phillips , Gregory P. Hicks