One of the most wanted wireless networks is Mobile Ad hoc Network (MANET). MANET can configure easily without using any facility which one is available at present as an infrastructure oriented wired or wireless network. It is one of the infrastructures less network consist of mobile devices. Individually each and every device in the Mobile ad hoc network will act as a router as well as node which provide the flexibility in the physical topology, optimal routing and data communication. In this paper, A Security improved AODV (SIm AODV) routing protocol is proposed for Ad-hoc networks which typically suits to resolve the security issues like Link Failure, Black Hole Attack, and Malicious Node Intrusion Attack. The proposed SIm AODV algorithm is incorporated and evaluate with OMNetpp 4.3 simulation.  

Keywords: OMNetpp 4.3; AODV; SIm AODV; MANET