Results 1 to 10 of about 344,072 (121)

A Measurement Based Shadow Fading Model for Vehicle-to-Vehicle Network Simulations

open access: yesInternational Journal of Antennas and Propagation, 2015
The vehicle-to-vehicle (V2V) propagation channel has significant implications on the design and performance of novel communication protocols for vehicular ad hoc networks (VANETs).
Taimoor Abbas   +3 more
doaj   +3 more sources

LOS Signal Identification Based on Common Chord Intersection Point Position Deviation from MS in Target Localization

open access: yesApplied Sciences, 2023
Target localization has been a popular research topic in recent years since it is the basis of all kinds of location-based applications. For GNSS-denied urban or indoor environments, the localization method based on time-of-arrival (TOA) is one of the ...
Rui Luo   +3 more
doaj   +1 more source

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

Alternating Direction Method of Multipliers for TOA-Based Positioning Under Mixed Sparse LOS/NLOS Environments

open access: yesIEEE Access, 2021
For positioning system based on wireless sensor networks, NLOS errors are one of the main factors to degrade localization performance of an algorithm, about which lots of research results and analysis have been published in previous literatures to ...
Chengwen He, Yunbin Yuan, Bingfeng Tan
doaj   +1 more source

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

A new approach to diffraction modelling for line-of-sight (LOS) paths [PDF]

open access: yes2015 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC), 2015
In this paper, we present a new knife-edge diffraction method based on Bullington method for the terrestrial line-of-sight (LOS) paths. The diffraction loss of our new knife-edge diffraction method is compared with the results obtained from the Delta-Bullington method and the measurement data existing in the literature for sample fixed terrestrial ...
Topçu, Satılmış   +3 more
openaire   +2 more sources

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

Rooftop and indoor reception with transmit diversity applied to DVB-T networks: A long term measurement campaign [PDF]

open access: yes, 2009
Although transmit Delay Diversity (DD) can provide a gain in indoor and other Non Line of Sight situations (NLOS), it can introduce degradation in rooftop reception. In fact, when the Ricean K factor of the channel is significantly high (e.g.
Arrinda, A   +6 more
core   +1 more source

Home - About - Disclaimer - Privacy