Dedicated short-range communications

DSRC is an acronym for Dedicated Short Range Communication.

Here it must be made between at least three different DSRC variants:

At the European DSRC is a semi-passive transponder technology with very little communication zone, which is in Europe, the de facto standard for electronic toll collection. DSRC has also implemented outside Europe as a national standard for toll collection and access control.

It is in WAVE is a wireless technology for a so-called vehicle ad-hoc network ( VANET, Vehicular Adhoc NETworking ). This is an automatic vehicle -to-vehicle or vehicle - beacon communication. Beacons are transmitting stations on the roadside. The point of this technique is the ability to communicate accurately assign a vehicle. This is used, for example, toll collection.

Applications

The vehicle -to-vehicle communication is to be used for collision avoidance.

With the vehicle beacon communication traffic reports and navigation data can be transferred. Mobile news and entertainment services are also conceivable. However, a principal application is the toll collection (eg in Italy, Austria and France).

The EFKON has implemented for the German toll DSRC based on infrared.

Standardization and regulation

The European Standard EN 12253 for μWave DSRC the working group CEN TC278 specified in the 5.8 GHz ISM band with max. 2 watts EIRP transmit power on the charging.

The U.S. Federal Communications Commission has reported in October 1999 in the frequency range of 5.9 GHz, a bandwidth of 75 MHz for DSRC. 2008 302 571 provided with the standard ETSI EN in Europe, a frequency range of 5.9 GHz.