Three-Tier Approach for Identifying Malicious Nodes in MANET
S. Aifa · International Journal of Wireless Communications and Network Technologies · 2019
In present days, mobile ad hoc networks have grown into an emerging research topic.One of the challenging problem in MANET is securing it in an unsafe environment.In MANET, Innumerable intermediate nodes interchange information without the need of infrastructure.To cooperate with each node all nodes participate in packet forwarding.Due to the inadequate energy of the nodes they do not participate in the routing process correctly.Existing solutions are not enough to secure the wireless network, as there are many vulnerabilities in using ad-hoc networks.To obtain a tolerable amount of security, conventional security mechanisms should relate to an intrusion detection system.We propose a three-tier approach for identifying malicious nodes in the network.Here, in this paper to identify the nature of the nodes as mischievous or genuine three levels are used.The first level is acknowledgement phase it consists of DTQ function, the DTQ value of nodes will be near to a constant or will be dynamic value for a legitimate node and will be continuously decreasing for a mischievous node.The second level is the voting phase, used to confirm the node is malicious.The third level is credit value phase used to identify the malicious nodes among the voter nodes in level two.