Millimeter wave communications for C-ITS: back to the future!?

22. December 2015

SMILERMillimeterwave communications in the 60 GHz frequency range, originally only considered for military applications, was introduced to ITS as part of the SMILER project of the EC's second framework programme. The Doppler radar AVES (AEG Verkehrsdaten Erfassungsgerät) was extended with a 10 Mbit/s downlink for broadcasting of information vehicles. The test device used waveguide technology, and thus was much too expensive for ITS applications. However the basic applicability of millimeter waves was successfully demonstrated.

These activities were continued in the EC's FP3-DRIVE 2 project COMIS, with two published reports (Report 1, Report 2). COMIS designed, implemented, and validated a communication system using monolithic integrated GaAs circuits.

The applicability of millimeterwave communications for C-ITS finally was demonstrated by car-to-car communications on the Autobahn in Germany.

This technology was also proposed for an Electronic Road Tolling System. Initial standardization work was done in CEN TC278 WG9; however this work never was finished.

Since the mid 1990's nothing seemed to happen in ITS, but recently other applciation areas became interested in the 60 GHz frequencies, e.g. for WiFi and for Cellular Networks. There are products for backhaul communications, but nothing for mobile communications..

At the Tokyo meeting of ISO TC204 WG16, it was decided to launch a project (going beyong standardization) elaborating in latest technologies at millimeterwave frequencies, with a certain focus on the band 63 GHz to 64 GHz (allocated at least in Europe for ITS). The aim is to provide validated standards for 60 GHz communications in support of self-driving cars and infrastructure C-ITS use-cases (roadside to vehicle communications), adding to the basic concept of hybrid communications (ISO 21217, ISO 17423, ISO 24102-6), and providing additional hugh bandwidth compared to what is available at 5,9 GHz.

Please feel free to contact Dr. Fischer for more information.

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