Validation Scheme for VANET

The vital feature of VANET is validation or security. As VANET is prone to different security breaches like Denial of Service because it reduces the speed of the messages. In this regard, modified prediction-based authentication scheme (PBA) has been exploited to defend DoS attack in VANET, thereby to mitigate packet loss caused by the vehicle's mobility. The main objective is to reduce the validation delay for emergency vehicles such as ambulance, fire service, etc. PBA is designed such that the sender vehicles cannot predict the beacons. The results have proved that this mechanism is safe.