Enhancing the Security in Ad-hoc On-Demand Distance Vector
Bhagia Nidhi, Manmohan Sharma · 2013
MANET is a collection of wireless nodes connected by wireless links without any fixed infrastructure. For communication, a temporary path is established between the nodes. As nodes are mobile, the structure of network changes dynamically. Due to dynamic topology and no centralized monitoring makes it difficult to provide a secure network. So it is vulnerable to attack and one of attack is called black hole attack. In this paper, we will enhance the security. The proposed mechanism will identify the behavior of malicious node in a MANET. Index Terms— AODV, Black Hole Attack, Malicious Node, MANET. Ad-hoc networks are a new standard of wireless communication for mobile hosts, which we call nodes. MANET is a collection of mobile hosts, devices that are connected by wireless link without any fixed infrastructure. Due to dynamic topology, the nodes or devices in the network can change locations. MANET can have different shapes of network at different locations because of the presence of mobility characteristic in it Ad-hoc devices should be able to detect the presence of other devices. The challenge faced by nodes in a MANET is the security and routing of routing protocols. As mobile ad-hoc networks are characterized by a multi-hop network topology that can change frequently because of mobility, efficient routing protocols are needed to establish communication paths between nodes without causing excessive control. Several forms can occur in ad-hoc wireless communication. One is Peer- to-Peer and other is Remote-to Remote communication. In peer-to-peer communication, communication will occur between them over a period of time until the one of node has moved away. In remote-to-remote, two or more nodes are communicating among themselves and they are migrating in groups. The application areas of the Mobile Ad-hoc network are military communication, home appliances, and emergency services.