Abstract
The use of Vehicular Ad-Hoc Networks (VANETs) is growing nowadays and it includes both roadside-to-vehicle communication (RVC) and inter-vehicle communication (IVC). The purpose of VANETs is to exchange useful information between vehicles and the roadside infrastructures for making an intelligent use of them. There are several possible applications for this technology like: emergency warning system for vehicles, cooperative adaptive cruise control or collision avoidance, among others. The objective of this work is to develop a VANET prototype system for urban environments using IEEE 802.15.4 compliant devices. Simulation-based values of the estimated signal strength and radio link quality values are obtained and compared with measurements in outdoor conditions to validate an implemented VANET system. The results confirm the possibility of implementing low cost vehicular communication networks operating at moderate vehicular speeds.
Highlights
The use of wireless communication systems is becoming widespread, with applications in virtually all domains, from domestic, industrial or security, to name but a few
A Vehicular Ad-Hoc Networks (VANETs) system implemented with the aid of 802.15.4 transceivers has been analyzed, simulated and measured
A vehicular scenario, consisting of a static transceiver and a transceiver mounted on a moving vehicle on a conventional urban road has been employed, with the aid of a VANET system implemented on the basis of XBee 802.15.4 modules
Summary
The use of wireless communication systems is becoming widespread, with applications in virtually all domains, from domestic, industrial or security, to name but a few. VANET [1] implementations are based in the IEEE 802.11p [2] standard, specially designed for use in high mobility devices. The idea is to use an IEEE 802.15.4 based system, a technology that has low power consumption, for implementing a simple VANET. The goal is to determine if these devices are capable of operating in vehicular urban environments, with typical maximum speed limitations of 50 km/h The use of such a type of system, in contrast with other systems such as mobile systems or 802.11 WLAN devices, can have potential benefits, based on their low power consumption, the high number of elements which can be allocated within the same network and the high reconfigurability that such systems exhibit.
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