Trust Based Security in Manet

Mobile ad-hoc network (MANET) is one of the most propitious area in research and development of wireless network. Popularity of mobile device and wireless networks significantly increased over the past years. MANET has no centralized control to handle the network, so this may cause to fails the functioning. This characteristic force a component node to be careful when communicating with other nodes as the behavior of nodes change with time and environmental conditions, so the security issues may arise like impersonation etc. Therefore behavior of node should consider improving the security of MANET. This is mostly important in big network where heterogeneous nodes are the parts of network for e.g. tactical and social network. The behavior of node is shown in the form of numerical value called as trust. Trust is calculated and aggregated and shared among network. Every node’s generated trust is on the basis of serious study, others node opinion, and previous interaction and their own policy. In this report, we have analyzed different proposed trust based mechanism and trust evaluation based security solution. These techniques are proposed to make trust security solutions more effective.