dedicated short-range communication

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dedicated short-range communication

dedicated short-range communication (DSRC): see radio-frequency identification.

The Columbia Electronic Encyclopedia Copyright © 2004.
Licensed from Columbia University Press

Dedicated short-range communications (DSRC) are one-way or two-way short- to medium-range wireless communication channels specifically designed for automotive use and a corresponding set of protocols and standards. It offers communication between the vehicle and roadside equipment. It is a sub-set of the RFID-technology. This technology for ITS applications is working in the 5.9 GHz band (U.S.) or 5.8 GHz band (Japan, Europe). Former standard used the 915 MHz band.

Currently its main use In Europe and Japan is in Electronic toll collection. DSRC systems in Europe, Japan and U.S. are not, at the present moment, compatible.

Other possible applications are:

Emergency warning system for vehicles
Cooperative Adaptive Cruise Control
Cooperative Forward Collision Warning
Intersection collision avoidance
Approaching emergency vehicle warning (Blue Waves)
Vehicle safety inspection
Transit or emergency vehicle signal priority
Electronic parking payments
Commercial vehicle clearance and safety inspections
In-vehicle signing
Rollover warning
Probe data collection
Highway-rail intersection warning

Other short range wireless protocols are IEEE 802.11, Bluetooth and CALM.

Standardization

In the European standardization organisation CEN, sometimes in co-operation with the International Organization for Standardization (ISO) the following DSRC standards have been developed:

EN 12253:2004 Dedicated Short-Range Communication - Physical layer using microwave at 5.8 GHz (review)
EN 12795:2002 Dedicated Short-Range Communication (DSRC) - DSRC Data link layer: Medium Access and Logical Link Control (review)
EN 12834:2002 Dedicated Short-Range Communication - Application layer (review)
EN 13372:2004 Dedicated Short-Range Communication (DSRC) - DSRC profiles for RTTT applications (review)
EN ISO 14906:2004 Electronic Fee Collection - Application interface

Each standard addresses different layers in the OSI model communication stack.