Efficient malicious detection for AODV in mobile ad-hoc network

A Mobile Ad-hoc Network (MANET) is a self-organized system comprised of mobile wireless nodes. It does not have centralized administration. So MANETs in open environment, easily attacked by malicious nodes because any node can join at any time in the network. AODV is a most traditional routing protocol used for MANET, which selects the shortest path for routing and it affects the data communication if any malicious node present in the shortest path. Proposed model uses the combination of trust and energy value based routing protocol called Energy and Trust Based AODV routing protocol (ET-AODV) to establish a most trusted routes by providing modification to AODV protocol. In proposed technique each node estimates its neighbor's trust value and energy value that is one node has for another node during communication dynamically. Adding trust value and energy value new root value is calculated and maintained in every neighbor table. Using root value trusted routes are established by two methods that are single value routing and multiple value routing and isolate the malicious nodes from the network. This technique only considers the black hole attack which can easily interrupt the communication path. Experimental results shows that the ET-AODV routing protocol is able to achieve an improvement in packet delivery ratios rather than AODV.