Dedicated Short Range Communications
Encyclopedia
Dedicated short-range communications 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.
In October 1999, the United States Federal Communications Commission
(FCC) allocated in the USA 75MHz of spectrum in the 5.9GHz band for DSRC to be used by Intelligent Transportation Systems ITS
.
Also, in Europe in August 2008 the European Telecommunications Standards Institute (ETSI) has allocated 30 MHz of spectrum in the 5.9GHz band for ITS
.
Currently its main use in Europe and Japan is in electronic toll collection
. DSRC systems in Europe, Japan and U.S. are not, at present, compatible.
Other possible applications are:
Other short range wireless protocols are IEEE 802.11
, Bluetooth
and CALM.
, sometimes in co-operation with the International Organization for Standardization
(ISO) the following DSRC standards have been developed:
Each standard addresses different layers in the OSI model
communication stack.
Wireless
Wireless telecommunications is the transfer of information between two or more points that are not physically connected. Distances can be short, such as a few meters for television remote control, or as far as thousands or even millions of kilometers for deep-space radio communications...
communication channels specifically designed for automotive use and a corresponding set of protocols and standards.
In October 1999, the United States Federal Communications Commission
Federal Communications Commission
The Federal Communications Commission is an independent agency of the United States government, created, Congressional statute , and with the majority of its commissioners appointed by the current President. The FCC works towards six goals in the areas of broadband, competition, the spectrum, the...
(FCC) allocated in the USA 75MHz of spectrum in the 5.9GHz band for DSRC to be used by Intelligent Transportation Systems ITS
Intelligent transportation system
The term intelligent transportation systems refers to information and communication technology that improve transport outcomes such as transport safety, transport productivity, travel reliability, informed travel choices, social equity, environmental performance and network operation...
.
Also, in Europe in August 2008 the European Telecommunications Standards Institute (ETSI) has allocated 30 MHz of spectrum in the 5.9GHz band for ITS
Intelligent transportation system
The term intelligent transportation systems refers to information and communication technology that improve transport outcomes such as transport safety, transport productivity, travel reliability, informed travel choices, social equity, environmental performance and network operation...
.
Currently its main use in Europe and Japan is in electronic toll collection
Electronic toll collection
Electronic toll collection , an adaptation of military "identification friend or foe" technology, aims to eliminate the delay on toll roads by collecting tolls electronically. It is thus a technological implementation of a road pricing concept...
. DSRC systems in Europe, Japan and U.S. are not, at present, 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
- Electronic toll collectionElectronic toll collectionElectronic toll collection , an adaptation of military "identification friend or foe" technology, aims to eliminate the delay on toll roads by collecting tolls electronically. It is thus a technological implementation of a road pricing concept...
Other short range wireless protocols are IEEE 802.11
IEEE 802.11
IEEE 802.11 is a set of standards for implementing wireless local area network computer communication in the 2.4, 3.6 and 5 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee . The base version of the standard IEEE 802.11-2007 has had subsequent...
, Bluetooth
Bluetooth
Bluetooth is a proprietary open wireless technology standard for exchanging data over short distances from fixed and mobile devices, creating personal area networks with high levels of security...
and CALM.
Standardization
In the European standardization organisation CENCEN
CEN may refer to:*Cen, or sen, is the currency of the fictional nation of Amestris of the anime/manga "Fullmetal Alchemist"As a three-letter acronym:* Cambridge Evening News, former name for the Cambridge News...
, sometimes in co-operation with the International Organization for Standardization
International Organization for Standardization
The International Organization for Standardization , widely known as ISO, is an international standard-setting body composed of representatives from various national standards organizations. Founded on February 23, 1947, the organization promulgates worldwide proprietary, industrial and commercial...
(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
OSI model
The Open Systems Interconnection model is a product of the Open Systems Interconnection effort at the International Organization for Standardization. It is a prescription of characterizing and standardizing the functions of a communications system in terms of abstraction layers. Similar...
communication stack.