“An efficient detection and prevention of Sybil attack in VANET by using different parameters “

COMPUTER SCIENCE

A Mobile Ad Hoc Network (MANET) is recognized as a useful internet protocol and where the mobile nodes are self-configuring and self-organizing in character. The Vehicular Ad Hoc Network (VANETs) is a part of mobile Ad Hoc Network. Vehicular as Hoc Network security is crucial, since application reliability and thus safety must not be compromised. One of the most severe attacks in these networks is the Sybil attack, in which a malicious nodes forges many fake identities to fool safety applications. It can locate Sybil nodes using short detection packets without adding special hardware or information exchange. The proposed techniques is based on monitor mode and distance based techniques. The vehicles and the elements that are present at the roadside are connected to each other for the purpose of communication and this network is self-configuring in nature, this is the reason that communication can be done inefficient manner through the network. The simulation is been performed in NS2. NS2 is an open – source simulation tool running on Unix – like operating systems. The results shows that purposed technique shows good results in terms of various parameter. Here some perimeters are packet loss, throughput and routing overhead. Extensive simulation results demonstrate the accuracy of our analysis.

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