IEEE 802.11p

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IEEE 802.11p is a draft amendment to the IEEE 802.11 standard to add wireless access in the vehicular environment (WAVE). It defines enhancements to 802.11 required to support Intelligent Transportation Systems (ITS) applications. This includes data exchange between high-speed vehicles and between the vehicles and the roadside infrastructure in the licensed ITS band of 5.9 GHz (5.85-5.925 GHz). IEEE 1609 is a higher layer standard on which IEEE 802.11p is based.^[1] 802.11p will be used as the groundwork for Dedicated Short Range Communications (DSRC), a U.S. Department of Transportation project based on European system CALM looking at vehicle-based communication networks, particularly for applications such as toll collection, vehicle safety services, and commerce transactions via cars. The ultimate vision is a nationwide network that enables communications between vehicles and roadside access points or other vehicles. This work builds on its predecessor ASTM E2213-03.^[2]

Status

The 802.11p Task Group is still active. Per the official IEEE 802.11 Work Plan predictions the approved 802.11p amendment is scheduled to be published in April 2009.^[3]

References

External links

• Status of the project 802.11p IEEE Task Group TGp
• What is DSRC? IEEE article with demo
• Intelligent Transportation gets 802.11p Daily Wireless July 15, 2004
• Could 802.11p spell the end for cellular in the automobile? Dan Benjamin ABI Research July 14, 2004
• When Wi-Fi Will Drive Adam Stone Wi-Fi Planet