Results 31 to 40 of about 19,499 (251)

A Comprehensive Investigation on Multi-User Interference Effects in Vehicular Visible Light Communications

open access: yesSensors, 2023
Vehicular visible light communications (VLC) are considered a suitable technology for vehicular platooning applications. Nevertheless, this domain imposes strict performance requirements.
Emmanuel Plascencia   +5 more
doaj   +1 more source

Implementation and Testing of V2I Communication Strategies for Emergency Vehicle Priority and Pedestrian Safety in Urban Environments

open access: yesSensors
This paper explores the development and testing of two Internet of Things (IoT) applications designed to leverage Vehicle-to-Infrastructure (V2I) communication for managing intelligent intersections.
Federica Oliva   +5 more
doaj   +1 more source

The New Era of Long-Range “Zero-Interception” Ambient Backscattering Systems: 130 m with 130 nA Front-End Consumption

open access: yesSensors, 2022
Internet of Things applications based on backscatter radio principles have appeared to address the limitations of high cost and high power consumption. While radio-frequency identification (RFID) sensor nodes are among the most commonly utilized state-of-
Spyridon Nektarios Daskalakis   +4 more
doaj   +1 more source

QoE-Based Resource Allocation for Heterogeneous Multi-Radio Communication in Software-Defined Vehicle Networks

open access: yesIEEE Access, 2018
Recently, vehicle to everything (V2X) communications have drawn a significant amount of attention. Emerging V2X applications demand the efficient utilization of heterogeneous access technologies, such as long-term evolution (LTE), Wi-Fi, and dedicated ...
Wei Huang   +5 more
doaj   +1 more source

TRAFFIC CONTROLLED-DEDICATED SHORT RANGE COMMUNICATION: A SECURE COMMUNICATION USING TRAFFIC CONTROLLED DEDICATED SHORT RANGE COMMUNICATION MODEL IN VEHICULAR AD HOC NETWORKS FOR SAFETY RELATED SERVICES [PDF]

open access: yesJournal of Computer Science, 2014
To increase the road safety and secure communicatio n among the vehicles in the network environment, Dedicated Short Range Communication (DSRC) is followed. Nowadays, research over DSRC is dramatically increased for enhancing the road safety applications.
K. Chandramohan, P. Kamalakkannan
openaire   +1 more source

Low-Cost Transceiver Architectures for 60 GHz Ultra Wideband WLANs

open access: yesInternational Journal of Digital Multimedia Broadcasting, 2009
Millimeter-wave multiport transceiver architectures dedicated to 60 GHz UWB short-range communications are proposed in this paper. Multi-port circuits based on 90° hybrid couplers are intensively used for phased antenna array, millimeter-wave modulation ...
S. O. Tatu, E. Moldovan, S. Affes
doaj   +1 more source

Review of V2X–IoT Standards and Frameworks for ITS Applications

open access: yesApplied Sciences, 2020
The intelligent transport system (ITS) has become one of the most globally researched topics with a lot of investment and development resources being dedicated into it due to its foreseen impact on the economic growth of the transport sector.
Karolis Kiela   +7 more
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Adaptive Message Rate Control of Infrastructured DSRC Vehicle Networks for Coexisting Road Safety and Non-Safety Applications

open access: yesInternational Journal of Distributed Sensor Networks, 2012
Intelligent transport system (ITS) has large potentials on road safety applications as well as nonsafety applications. One of the big challenges for ITS is on the reliable and cost-effective vehicle communications due to the large quantity of vehicles ...
Wenyang Guan   +4 more
doaj   +1 more source

MHAV: Multitier Heterogeneous Adaptive Vehicular Network with LTE and DSRC

open access: yesICT Express, 2017
Enabling cooperation between vehicles form vehicular networks, which provide safety, traffic efficiency and infotainment. The most vital of these applications require reliability and low latency.
S. Ansari   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy