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Direct transport processes play an important role in wireless communications where an ideal setup uses microwave fields to establish reliable communication channels between transmitter and receiver. But it is inherent to the problem that…

无序系统与神经网络 · 物理学 2020-09-16 Martin Richter , Fabrice Mortessagne , Olivier Legrand , Ulrich Kuhl

We consider device-to-device (D2D) wireless information and power transfer systems using an unmanned aerial vehicle (UAV) as a relay-assisted node. As the energy capacity and flight time of UAVs is limited, a significant issue in deploying…

信息论 · 计算机科学 2018-09-07 Minh-Nghia Nguyen , Long D. Nguyen , Trung Q. Duong , Hoang Duong Tuan

Estimating the 3D structure of the drivable surface and surrounding environment is a crucial task for assisted and autonomous driving. It is commonly solved either by using 3D sensors such as LiDAR or directly predicting the depth of points…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Haobo Yuan , Teng Chen , Wei Sui , Jiafeng Xie , Lefei Zhang , Yuan Li , Qian Zhang

In this paper we have discussed about the number of automobiles that has been increased on the road in the past few years. Due to high density of vehicles, the potential threats and road accident is increasing. Wireless technology is aiming…

网络与互联网体系结构 · 计算机科学 2013-04-19 Vaishali D. Khairnar , S. N. Pradhan

As vehicle population has been increasing on a daily basis, this leads towards increased number of accidents. To overcome this issue, Vehicular Ad Hoc Network (VANET) has come up with lot of novel ideas such as vehicular communication,…

网络与互联网体系结构 · 计算机科学 2018-01-22 Ruchin Jain

This paper investigates the latter scenario of individual emergency alerts in airports by applying two existing benchmark delay tolerant network protocols and evaluating their performance of delivery ratio and latency. First, the paper…

网络与互联网体系结构 · 计算机科学 2026-01-01 Nana Oye Akrofi Quarcoo , Milena Radenkovic

Unmanned aerial vehicles (UAVs) can be used as aerial wireless base stations when cellular networks go down. Prior studies on UAV-based wireless coverage typically consider an Air-to-Ground path loss model, which assumes that the users are…

信息论 · 计算机科学 2017-05-30 Hazim Shakhatreh , Abdallah Khreishah , Bo Ji

The purpose of this paper is to model traffic in Ad Hoc network of Unmanned Aerial Vehicles and demonstrate a way for adapting communication channel using Artificial Intelligence. The modeling was based on the original model of Ad Hoc…

网络与互联网体系结构 · 计算机科学 2026-02-17 Andrii Grekhov , Volodymyr Kharchenko , Vasyl Kondratiuk

The dissemination of vehicle position data all over the network is a fundamental task in Vehicular Ad Hoc Network (VANET) operations, as applications often need to know the position of other vehicles over a large area. In such cases,…

网络与互联网体系结构 · 计算机科学 2019-04-09 Federico Mason , Marco Giordani , Federico Chiariotti , Andrea Zanella , Michele Zorzi

Humans can effectively find salient regions in complex scenes. Self-attention mechanisms were introduced into Computer Vision (CV) to achieve this. Attention Augmented Convolutional Network (AANet) is a mixture of convolution and…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Runqing Zhang , Tianshu Zhu

Global localization is an important and widely studied problem for many robotic applications. Place recognition approaches can be exploited to solve this task, e.g., in the autonomous driving field. While most vision-based approaches match…

计算机视觉与模式识别 · 计算机科学 2020-03-11 Daniele Cattaneo , Matteo Vaghi , Simone Fontana , Augusto Luis Ballardini , Domenico Giorgio Sorrenti

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

Today the global averaged civilian positioning accuracy is still at meter level for all existing Global Navigation Satellite Systems (GNSSs), and the civilian positioning performance is even worse in regions such as the Arctic region and…

信号处理 · 电气工程与系统科学 2023-01-03 Hongzhao Zheng , Mohamed Atia , Halim Yanikomeroglu

Nowadays, real-time vehicle applications increasingly rely on video acquisition and processing to detect or even identify vehicles and obstacles in the driving environment. In this letter, we propose an algorithm that allows reinforcing…

计算机视觉与模式识别 · 计算机科学 2023-11-07 Mohamed Aymen Labiod , Mohamed Gharbi , François-Xavier Coudoux , Patrick Corlay

This paper studies unmanned aerial vehicle (UAV) aided wireless communication systems where a UAV supports uplink communications of multiple ground nodes (GNs) while flying over the area of the interest. In this system, the propulsion…

信息论 · 计算机科学 2018-01-10 Subin Eom , Hoon Lee , Junhee Park , Inkyu Lee

Six-dimensional movable antenna (6DMA) is an effective approach to improve wireless network capacity by adjusting the 3D positions and 3D rotations of distributed antenna surfaces based on the users' spatial distribution and statistical…

信息论 · 计算机科学 2024-03-27 Xiaodan Shao , Rui Zhang , Qijun Jiang , Robert Schober

Among the current advanced driver assistance systems, Vehicle-to-Vehicle (V2V) technology has great potential to increase Vehicular Ad Hoc Network (VANET) performance in terms of security, energy efficiency, and comfortable driving. In…

网络与互联网体系结构 · 计算机科学 2021-02-02 Ghassan Samara

Unmanned aerial vehicles (UAVs) can be utilized as aerial base stations (ABSs) to assist terrestrial infrastructure for keeping wireless connectivity in various emergency scenarios. To maximize the coverage rate of N ground users (GUs) by…

信息论 · 计算机科学 2020-02-06 Jin Qiu , Jiangbin Lyu , Liqun Fu

We introduce a visually-guided and physics-driven task-and-motion planning benchmark, which we call the ThreeDWorld Transport Challenge. In this challenge, an embodied agent equipped with two 9-DOF articulated arms is spawned randomly in a…

We are interested in the assessment of electromagnetic Path-Loss in complex environments. The Path-loss is the attenuation function $P$ of the electromagnetic power at a distance $d$ of an antenna. In free-space, $P(d) \propto 1/d^2$, in…

概率论 · 数学 2016-04-05 Thomas Courtat , Laurent Decreusefond , Phillipe Martins