Security in Ad Hoc Networks: A Location Based Impersonation Detection Method

Ad-hoc networks have a promising future in network area. it is highly demandable for its sudden and emergency utility. Ever changing topology adorned it with high flexibility. Due to its characteristics it is vulnerable to the various attacks, which are not known in wired networks. Out of these threats, impersonation attack is the most terrific and unavoidable, that can collapse the entire network. In this paper, we proposed a location based impersonation detection model that can uniquely locate the transmitter's position. Specifically we consider signal direction and self-positioning of the nodes to determine the transmitter's location. We use these pieces of information with some postulates to identify the impersonation. This greatly reduces the security threats in ad hoc network.