Vehicular ad-hoc networks (VANETs) form when vehicles are equipped with devices capable of short-range wireless communication. Accurate simulation of VANETs is a challenging task, requiring both a vehicle mobility model and a network simulator. Although separate simulators exist, integrating them is difficult. The authors have developed an integrated simulator, based on studied, validated models. The authors argue that their simulator can be used for the studying of a large range of VANET protocols and applications, which would be very difficult to study by using other tools. The simulator can be used to evaluate a large range of vehicular computing applications. The authors are currently in the process of studying three such applications. First, the authors are developing an adaptive traffic lights system in which wireless traffic lights can obtain real-time traffic information by communicating with vehicles. The authors focus the study on algorithms for efficient traffic control. The integrated simulator allows one to easily emulate fixed nodes (traffic lights) and the application running on top of them. Secondly, the authors are studying a query-reply protocol. A node could make use of the ad-hoc network in order to obtain real-time traffic information about remote regions. This application makes use of the geographical routing protocol. Finally, the authors are studying an application for suggesting best routes to drivers, based on real-time traffic information. By using the ad-hoc network and infrastructure, drivers can obtain the best route to a destination, taking into account the current traffic shape. Studying VANET protocols requires efficient, accurate simulation tools. The authors have developed an integrated simulator, comprising a complex model for vehicles mobility, a wireless network simulator and an interface for the emulation of vehicular applications. On top of this simulator the authors have implemented TrafficView, an application for information exchange between vehicles. The authors have analyzed the performance of the simulator, and found it can be used to simulate networks of several thousands of nodes, in complex city scenarios, as well as highway scenarios. These cannot be studied by using existing simulators.
An integrated vehicular and network simulator for vehicular ad-hoc networks
Ein integrierter Fahrzeug- und Netzwerksimulator für Ad-hoc-Fahrzeugnetzwerke
2006
8 Seiten, 7 Bilder, 12 Quellen
Aufsatz (Konferenz)
Englisch
Poster: A simulator for heterogeneous vehicular networks
IEEE | 2014
|Springer Verlag | 2018
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