Abstract

AbstractVehicles or nodes in Vehicular Ad hoc Network (VANET) are forwarding the traffic information for validation route information. Attacker vehicles are sending false messages of route information and not accepting traffic status packets or data packets. The abnormal behavior of the malicious nodes (Blackhole Attacker) and wormhole attacker is recognized by the reliable security mechanism. This paper proposes an intrusion detection and prevention (IPS) scheme to secure vehicle to RSU (V-RSU) communication from malicious (Blackhole) as well as wormhole attack in VANET. The IPS algorithm is applied to the RSU to recognize the malicious actions of an attacking vehicle by swarm optimization approach. The particle swarm optimization (PSO) confirms the attacker’s presence and delivers effective traffic information. In the proposed IPS scheme, vehicles also receive traffic data from the leading vehicles and also forward traffic information to other vehicles. The traffic data exchange is monitored by RSU to identified malicious actions. The main task of the proposed security system is the effective management of vehicles in the presence of an intruder. Simulation results confirm that the proposed IPS scheme with PSO provides better performance in the presence of both attackers in VANET. The performance of previous IDS, attacker and proposed IPS is measure through performance metrics.KeywordsAttacksIPSPSORoutingRSUSecurityVANET

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