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802.11p

An IEEE working group that is extending the 802.11 standard to automobiles. As part of a dedicated short range communications (DSRC) system, 802.11p operates in the 5.9 GHz band and deals with roaming from cell to cell in a fast-moving vehicle. See DSRC.



DSRC

(Dedicated Short Range Communications) A wireless technology for vehicular traffic. Using a modified 802.11a technology for North American cars and trucks, DSRC is designed for several applications. For example, ambulances can cause traffic lights down the road to change in their favor, and traffic congestion can be transmitted to automobile navigation systems. It allows vehicles to sense that they are about to crash, and the safety systems can begin to tighten seatbelts and warm up the airbags before impact. In addition, a standard for wireless payment allows parking lots and fast-food drive-ins to offer the same convenience as the automated highway toll systems such as E-ZPass.



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802.11ax802.11s
802.11b802.11u
802.11b/g802.11v
802.11e802.11w
802.11g802.11x
802.11g/n802.12
802.11h802.15
802.11i802.15.1
802.11k802.15.2
802.11n802.15.3

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