A novel mechanism of detection of denial of service attack (DoS) in VANET using Malicious and Irrelevant Packet Detection Algorithm (MIPDA)

Security of Vehicular Ad Hoc Networks (VANET) plays a very important role in order to sustain critical life. VANET is a subtype of MANET. For the secure communication of critical life related information, network must need to be available at all the times. The network availability is exposed to several types of attacks and threads possible in VANET. These security attacks and threats include Sybil attacks, misbehaving nodes generate false information, jamming attacks, selfish driver attack, wrongs vehicle position information. These attacks make other vehicles unsecure. Among all these attacks, denial-of-service (DoS) attacks is a major threat to the information economy. In this paper, we proposed an Malicious and Irrelevant Packet Detection Algorithm (MIPDA) which is used to analyze and detect the Denial-of Service (DoS) attack. As a result, the attack is eventually confined within its source domains, thus avoiding wasteful attack traffic overloading the network infrastructure. It also reduces the overhead delay in the information processing, which increases the communication speed and also enhances the security in VANET.