An Efficient Approach for Safety Critical Message Transmission in VANETs?

The Intelligent Transportation System (ITS) architecture is currently being developed for enhancing vehicle safety. So, vehicular ad hoc network (VANET) is one of the recent and promising technologies for revolutionizing the transportation system where vehicles can communicate by sending message with each other via a wireless medium. The main motivation of using vehicular communications is not only to reduce number of traffic accidents but also the travelling time, congestion etc. by implementing various traffic applications. Because in safety critical message transmission, vehicles need to be constantly aware of the events in their surrounding environment, so as to avoid any unwanted situation before it occurs. VANET has adopted dedicated short-range communication (DSRC), which is under the process of standardization as the IEEE 802.11p/WAVE standard.