comfort and safety. The IEEE 802.11 p/WAVE is a standard intended to support wireless
access in VANETs. In this paper, we propose an analytical model to evaluate the
performance of the IEEE 802.11 p based MAC for VANETs under non-saturation condition
through the packet delivery ratio, the average delay of emergency message and the
throughput of service message. The 2-D Markov model is used to model two access …