Performance analysis of DOA and AODV routing protocols with black hole attack in MANET

The collection of mobile nodes without infrastructure known as the mobile adhoc network has its nodes that moves independently towards all directions in the network thereby changing the network topology frequently. In MANET, whenever the node that is identified as source need to transfer data to the receiving node which resides out of coverage area, source node uses intermediate nodes. We use DOA protocol for the purpose of connectivity in such large scale networks for better data transmission. In such case, if a malicious node enters into the MANET, packet loss occur leading to performance degradation. The secure transfer of information via large scale wireless network is a challenging issue. In this paper we analyzed two routing protocols used in large scale network; the DOA and AODV routing protocols and injected them using black hole attack and evaluated its quality parameters like packet delivery ratio and average end to end delay. The network was simulated using NS2 and the performances of the protocols were compared for its efficiency.