Document Type : Original Article
Department of Computer Engineering, Islamic Azad University,Ardabil , Iran
Department of Computer Engineering, Islamic Azad University,Germi branch , Germi
A mobile ad hoc network is a set of mobile nodes communicate with each other without any central control or infrastructure. Given the wireless nature of mobile ad hoc networks, security is a major challenge for these networks. On the other hand, considering that the majority of operations in mobile ad hoc networks is carried out using routing, we can create more secure routes in order to promote and improve performance in these networks. In this paper, we propose a new method for improving intrusion detection in mobile ad hoc networks through the detection and identification of black hole nodes. The proposed protocol is based on the DSR protocol. In order to realize this objective, in the route detection phase, the DSR protocol identifies the black hole nodes and by eliminating routs containing these nodes, data transmission and reception operations will be performed in a more secure fashion. The proposed protocol is called S-DSR. The results of simulation in NS-2 simulation environment show that S-DSR protocol outperforms the DSR protocol.