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In this paper, a robust distributed malicious node detection and preciselocalization and tracking method is proposed for Cluster based Mobile Ad hocNetwork (MANET). Certificate Authority (CA) node is selected as the most stablenode among trusted nodes, surrounded by Registration Authority nodes (RAs) ineach cluster to generate the Dynamic Demilitarized Zone (DDMZ) to defend CAfrom probable attackers and mitigate the authentication overhead. The RAs alsoco-operate with member nodes to detect a target node and determine whether itis malicious or not, by providing the public key certificate and trust value.In addition, Internet Protocol (IP) based Triangulation and multi-laterationmethod are deployed based on using the average time difference of Time ofArrival (ToA) and Time of Departure (ToD) of the management packets.Triangulation uses three reference nodes which are elected within each clusterbased on Best Criterion Function (BCF) to localize each member node inside thecluster in 2D. Multi-lateration is employed to localize the malicious targetnode in 2D using four neighbor nodes. After localization of two consecutivepositions, the target node is continuously localized and tracked by aparticular node using the modified real time Position Localization and Tracking(PL&T) algorithm by adaptive beam forming and mapping the energy contours oftracking zone into coverage radii distance. The performance of the proposedscheme demonstrates the significant accuracy in the detection of maliciousnodes within each cluster.

Distributed Position Localization and Tracking (DPLT) of Malicious Nodes in Cluster Based Mobile Ad hoc Networks (MANET)