Performance Analysis Of Routing Attacks In Manets Using Software Agents

Abstract

MANET (Mobile Ad-hoc Network) is a wireless network initially developed for military usage which was highly dynamic and ad hoc in nature. Later MANET finds applications in day to day life and the latest inclusive is IOT (internet of things). As the nature of the network involves no centralized control system, the routing of the network is carried over on a node forward basis. Since the network elements are dynamic and any time they can disappear, the routing cannot be done using source formatting. So it involves routing tables which will be updated after every hopping of data. A suitable protocol for this purpose is AODV (Ad hoc On Demand Distance Vector). AODV finds a wide range of usage in present day MANETs of diverse applications. For any data placed in the internet the prime requirement that needs to be addressed is its security. The major threats for security of data handled by AODV are black hole and Sybil attacks. Motivation of this research work is to develop suitable countermeasures for such attacks on AODV and to enhance the performance of the protocol. Packet delivery ratio, throughput, end to end delays were some of the performance metrics considered for this purpose. newline newline newlineIn the approach towards achieving the motivation, the research involves some methodology which comprises the following objectives. 1) Thorough study of routing attacks on AODV protocol, 2) to develop software agents based black hole detector and eliminator, 3) to develop a lightweight surprise check crypto algorithm to eliminate the malicious node, and 4) to compare the performance of the enhanced AODV protocol with that of the existing one. All the performance newline newline newline newline newlineanalysis were carried over by conducting experiments in the simulation environment created using Network Simulator 2 (NS2). The results shows that the enhanced AODV protocol, in all cases outperforms the existing AODV counterpart. newline