Vehicular Ad hoc NETworks (VANETs), which are the main focus of engineers yearning to turn cars into intelligent machines that communicate for safety and comfort purposes. Vehicular Ad-hoc NETworks (VANETs) have recently attracted extensive attentions as a promising technology for revolutionizing the transportation systems. VANETs consist of entities including infrastructure Road-Side Units (RSUs) and On-Board Units (OBUs). VANET is typically over the Dedicated Short Range Communication (DSRC) (5.9GHz). Ex. IEEE 802.11p where it is MAC layer suitable for VANET support for high mobility.