Results 11 to 20 of about 174,030,414 (303)

Analysis of 5.8 GHz Network for Line of Sight (LOS) and Non-Line of Sight (NLOS) in Suburban Environment

open access: yesInternational Journal on Advanced Science, Engineering and Information Technology, 2023
This paper presents the findings of radio wave characterization based on the measurement data at 5.8 GHz. The measurement data were collected by a testbed channel, which links with the following scenarios: a single tree, a row of trees, a row of trees and a road, a row of trees, a road, and a building.
Md Idris, Ikha Fadzila   +3 more
openaire   +2 more sources

Optimum Model for Tracking of Moving Objects

open access: yesPakistan Journal of Engineering & Technology, 2023
 In wireless communication, it is a challenge to find the accurate position of moving objects. The presented work proposes the GPS receiver to measure the position and velocity of moving objects.
Muzaffar Hussain   +2 more
doaj   +1 more source

Machine-Learning-Based LOS Detection for 5G Signals with Applications in Airport Environments

open access: yesSensors, 2023
The operational costs of the advanced Air Traffic Management (ATM) solutions are often prohibitive in low- and medium-sized airports. Therefore, new and complementary solutions are currently under research in order to take advantage of existing ...
Palihawadana A. D. Nirmal Jayawardana   +4 more
doaj   +1 more source

Towards the Feasibility of Long Range Wireless Power Transfer over an Ocean Surface

open access: yesApplied Sciences, 2022
In this work, we have realized Zenneck’s style of wireless power transfer over a seawater surface. Method: The problem can be thought of as a surface electromagnetic wave propagating along an interface between a low-loss non-polar medium and seawater.
Louis W. Y. Liu, Sơn Nguyễn Thành
doaj   +1 more source

Analisis Pengiriman Data Pada Jaringan Sensor Nirkabel Menggunakan Modul XBEE Dan Wemos

open access: yesProtek: Jurnal Ilmiah Teknik Elektro, 2020
Perkembangan teknologi jaringan sensor nirkabel (JSN) mengalami kemajuan yang sangat pesat pada belakangan ini. Perkembangan tersebut juga memicu berkembangnya modul wireless yang digunakan dalam JSN.
Asmah Akhriana   +3 more
doaj   +1 more source

A dataset for Wi-Fi-based human activity recognition in line-of-sight and non-line-of-sight indoor environments

open access: yesData in Brief, 2020
The aim of this paper is to present a dataset for Wi-Fi-based human activity recognition. The dataset is comprised of five experiments performed by 30 different subjects in three different indoor environments.
Baha’ A. Alsaify   +3 more
doaj   +1 more source

Statistical LOS/NLOS Channel Model for Simulations of Next Generation 3GPP Networks

open access: yesElektronika ir Elektrotechnika, 2018
Understanding of line-of-sight and non-line-of-sight (LOS/NLOS) visibility conditions is important for radio wave propagation modeling when selecting empirical path loss model.
Rimvydas Aleksiejunas   +2 more
doaj   +1 more source

Track control algorithm for submarine in the horizontal plane based on model predictive control

open access: yesZhongguo Jianchuan Yanjiu, 2019
[Objectives]This study aims to solve the problem of the track control for submarine in the horizontal plane.[Methods]Firstly,the paper builds dynamics and kinematics model of the submarine in the horizontal plane,then builds the error model of the track ...
Zhang Zichang   +3 more
doaj   +1 more source

UWB Channel Modeling Improvement in Indoor Line-of-Sight (LOS) Environments

open access: yesInternational Journal of Communications, Network and System Sciences, 2010
Channel measurement and modeling is an important issue when designing ultra wideband (UWB) communication systems. A Precise model of the channel response is inevitable for designing an ultra wideband telecommunication system. In this article signal propagation in indoor environment and LOS condition is evaluated and the appropriate model of this ...
Vahid Tabataba Vakili   +2 more
openaire   +3 more sources

Constraints and Recent Solutions of Optical Camera Communication for Practical Applications

open access: yesPhotonics, 2023
Visible light communication (VLC) has emerged as a promising technology for wireless communication due to its advantages of the vast optical spectrum, high energy efficiency, and no electromagnetic interference radiation.
Pinpin Zhang   +6 more
doaj   +1 more source

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