Proposed priority packet data dissemination scheduling mechanism

Communication in a faster moving vehicle under Vehicular Ad-Hoc Network (VANET) is widespread for disseminating packet priority. The dissemination of priority packet data is very important because packet with the higher priority can also be categorized as emergency messages. Message dissemination with priority packet has been researched by many researchers with determining message priority in MAC Layer or when the process of the data dissemination. The standard protocol IEEE 802.11p has supported priority levels that are divided into four access categories. This paper is focused on determine packet priority on MAC layers, then Priority Packet Data Dissemination Scheduling Mechanism is proposed. Packet priority is estimated based on vehicle location and traffic to access the channel. Then, for the effective data dissemination of packet priority, AODV protocol is used. Finally, the results of the experiment show better performances in terms of throughput, PDR and delay even with the higher node density.