Abstract
VANETs (Vehicular Ad hoc Networks) operating in conjunction with road-side infrastructure connecting road-side infrastructure are an emerging field of wireless communication technology in the vehicular communication’s domain. For VANETs, the IEEE 802.11p-based ITS-G5 is one of the key standards for communication globally. This research work integrates the ITS-G5 with a cellular-based 5G Test Network (5GTN). The resulting advanced heterogeneous Vehicular Network (VN) test-bed works as an effective platform for traffic safety between vehicles and road-side-infrastructure. This test-bed network provides a flexible framework to exploit vehicle-based weather data and road observation information, creating a service architecture for VANETs that supports real-time intelligent traffic services. The network studied in this paper aims to deliver improved road safety by providing real-time weather forecast, road friction information and road traffic related services. This article presents the implementation of a realistic test-bed in Northern Finland and the field measurement results of the heterogeneous VANETs considering the speed of vehicle, latency, good-put time and throughput. The field measurement results have been obtained in a state-of-the-art hybrid VANET system supporting special road weather services. Based on field measurement results, we suggest an efficient solution for a comprehensive hybrid vehicular networking infrastructure exploiting road weather information.
Highlights
Reliable communications are a fundamental requirement to ensure road traffic safety.Currently, road-side infrastructure, i.e., “Roadside Units (RSU) and Road Weather Stations (RWS), are one of the crucial parts of wireless sensor networks that can be utilized to observe and track vehicular activity along roads such as road conditions, speeding cars, car crashes and other dangerous situations
Based on field measurement results, we suggest an efficient solution for a comprehensive hybrid vehicular networking infrastructure exploiting road weather information
The ideal situation for the communication link availability time was calculated according to (1), the availability of a Vehicular Ad hoc Network (VANET) communication link has a relation between the ideal situation and the collected results, respectively
Summary
Reliable communications are a fundamental requirement to ensure road traffic safety. Road-side infrastructure, i.e., “Roadside Units (RSU) and Road Weather Stations (RWS), are one of the crucial parts of wireless sensor networks that can be utilized to observe and track vehicular activity along roads such as road conditions, speeding cars, car crashes and other dangerous situations. The network increases road safety by providing the vehicle with different alerts such as traffic and weather information, as well as road condition information. For VANETs, IEEE launched the 802.11 standard for vehicular communications. The basic idea of this standard is to improve the safety applications for public as well as to improve the flow of road traffic in Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) scenarios [1]. Cellular communication plays an important role in Vehicular Networks (VNs) to exchange road weather and traffic information in order to enhance road traffic safety [2]
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