Black Hole Detection Approaches for AODV in MANET

Abstract

The wireless nodes that can dynamically form a network to exchange information without using any existing fixed network infrastructure. When nodes which are performing communication are mobile nodes (i.e., moves from one location to another) then it is called a Mobile Ad hoc Network (MANET). In a MANET, communication between the mobile devices is carried out by some intermediate devices called routers. In the routing of MANET, some intermediate nodes act maliciously & attack the packets that are delivered through them. One such type attack is black hole attack that absorbs all data packets in the network without moving them to forward. Hence data loss will occur as data packets are not moved to the destination node. In this paper we provide a secure mechanism to overcome such types of attacks.