Short-Range Wireless Communications for Vehicular Ad hoc Networking

Joshua Thomas Blasius

Abstract


If upcoming traffic information were disseminated to drivers in a timely manner, the excessive cost of traffic collisions and congestion as well as the number of deaths and injuries could be significantly reduced. In order to forward the upcoming traffic information in a timely manner, wireless communication is a viable alternative. Upcoming traffic information can be forwarded in a vehicular network using Vehicle-to-Vehicle or Vehicle-to-Roadside (V2R) and Roadside-to-Vehicle (R2V) communications. Existing systems for forwarding upcoming traffic information introduce high delay which is not acceptable for time critical emergency messages. Our goal in this work is to develop an automatic information dissemination framework for vehicular ad hoc network. We also present a comparative study of different short range wireless technologies including Wi-Fi (IEEE 802.11a/b/g/n), Bluetooth (IEEE 802.15.1), ZigBee (802.15.4), and Dedicated Short Range Communication (IEEE 802.11p) through on board devices which are suitable for Vehicular Ad hoc Networks (VANETs). In order to compare these technologies, we will consider connection set-up time, data transfer rate, transmission range, processing delays, etc. as metrics. First, we will simulate VANET scenarios. Then, we will create a VANET prototype to test technologies in real world scenarios using cars and smartphones with applications. In this paper, we will present the results obtained from both simulations.


Keywords


Vehicular ad hoc network; Intelligent transportation system; Vehicle-to-vehicle communications

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