Secure Routing-Based AODV to Prevent Network from Black Hole Attack in MANET

Abstract

Mobile ad hoc networks (MANETs) are the collection of mobile nodes that transmit data through intermediate nodes. MANET does not depend upon any existing infrastructure. Securing MANET is the toughest task because all the nodes are movable in nature. In MANET, every node can perform as a relay and transmit data through intermediate node to the destination node. Just because of its dynamic nature, multiple attacks occur in this network. The most occurring attack in the MANET is black hole attack. In this, the attacker is a malicious node that works as a destructive node. During the transmission of the data packet from the source to the destination, the attacker node becomes the part of route and it does not forward further. To overcome this attack, we proposed an approach that uses the dynamic threshold to detect the attacker nodes and avoid the entire path having the attacker nodes. Identification of the attacker node is done during the path formation. We performed the evaluation of the proposed approach and compared with the performance of existing approach. Outcome shows that the proposed methodology is more effective than existing method in context to throughput and packet delivery ratio.