Tracing the Abnormal Behavior of Malicious Nodes in MANET

This paper introduces a new technique for tracing the malicious nodes in mobile adhoc network (MANET) for wireless communication. As the mobile hosts are free to move any where and can change the wireless topology frequently, each node of MANET are much more vulnerable to insider attacks specially under noise and external attacks due to lack of permanent infrastructure, limited resources, central administrator etc. Here in this paper, we have done an investigation and mathematical analysis based upon the detection of malicious node with attacks modeling .We propose a scanning procedure and security measures for the multihop wireless network after diagnosis the abnormal behavior of malicious node and verify the physical presence of attacks strategy in wireless network.