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A mobile ad-hoc network (MANET) is a non-infrastructure network that consists of self configuring mobile nodes connected by wireless links. In this network, mobile nodes are free to move in an open environment. Two nodes can communicate directly as long as they are within the radio communication range of each other, but when the two nodes are far apart, they require the help of other intermediate nodes to relay their traffic. The mobile nodes can receive and forward packets as a router. The characteristics of self-organization and wireless medium make Mobile Ad hoc Network (MANET) easy to set up and thus attractive to users. The open and dynamic operational environment of MANET makes it vulnerable to various network attacks .So routing is a critical issue in MANET. Many applications today, especially military and emergency ones, are based upon ad hoc wireless networks, where security requirements are harder to enforce than in traditional networks .Hence the focus of this research paper is to evaluate the performance of our proposed algorithm with DSR routing protocols in presence of black hole attack. Our simulation tool will be OPNET modeler. The performance of these routing protocols is analyzed by three metrics: delay, network load and throughput.
Keywords- Wireless Ad-hoc Network, Black Hole Attack, Simulation, Security, AODV, DSR, OPNET, MANET
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