International Journal of Advance Research in Science and Engineering (IJARSE)
Recently, wireless ad hoc networks became a hot research topic among researchers due to their flexibility and independence of network infrastructures, such as base stations. Network early work in MANET on developing an efficient routing mechanism in such a highly dynamic and resource constrained network. At present, several efficient routing protocols have been proposed for MANET. Most of these protocols assume a trusted and cooperative environment. However, in the presence of malicious nodes, the networks are vulnerable to various kinds of attacks.