Performance evaluation of beacons control data dissemination protocol in handover scenario for VANET

For minimizing road accidents, traffic jams, car parking and other significant scenarios related to cost effectiveness and safety in VANET, the communication between vehicle to vehicle and vehicle to road side unit (RSU) should achieve the service quality, high data receive ratio and low latency. However, the probability of TCP disruption increases by the increasing distance between source and destination due to the high mobility of vehicles. Therefore, for increasing the reliability of TCP connection, the communication should follow the automatic connection and disconnection mechanism during the contact time between RSU and vehicle. In this research study, the beacons control data dissemination protocol has been proposed for reducing the impact of TCP disruptions on the network performance during handover. Network simulator 2 has been used to implement this protocol and analyses the performance on different traffic density, routing protocols of MANET and traffic type. The result shows that dedicated routing protocols in MANET are suitable for proposed protocol in VANET and AODV routing protocol has found more reliable from DSDV and AOMDV. In addition, the traffic type is not much affected on the data receive ratio (DRR) and the performance of proposed protocol degraded for high density of vehicles.