Controlling Congestion in Safety-Message Transmissions: A Philosophy for Vehicular DSRC Systems

Dedicated short-range communication (DSRC) is a powerful new technology that allows vehicles to communicate with each other. [DSRC is the U.S. vehicle communication technology operating in the 5.9-GHz Intelligent Transportation Systems (ITS) band; the analogous technology in Europe is called Cooperative ITS, and the band is referred to as ITS G5.] In particular, they exchange safety messages that allow collision threats to be identified and...