Abstract
The primary aim of Intelligent Transportation Systems (ITS) is to increase road safety as well as traffic efficiency. In order to meet strict and varying with ITS applications requirements, we propose using a combination of cellular, short range and Ultra High Frequency (UHF) communication technologies. Our approach was inspired by Communication access for Land Mobile (CALM). In this paper, we introduce, describe and discuss a distributed heterogeneous pilot ITS network. The technologies in focus are UHF communications for high reliability and robustness, Dedicated Short Range Communications (DSRC) for direct vehicular communications, WiMAX and LTE for broadband services. We describe the services that were chosen and how they map to the technologies. The characteristics of the technologies are translated into frequency-territorial planning, which derives the number of base stations and their locations. Finally, we show how the capabilities of the pilot network are demonstrated. This pilot network is a first step towards investigation of heterogeneous ITS in real urban communication surroundings.
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