Detection and Prevention of Wormhole Attack in WiMAX Based Mobile Adhoc Network

Wormhole attack is the very hazardous attack in the wireless network which comes in network routing protocol and encryption and decryption security system. An Adhoc system is a self-prepared network, without a principal coordinator, and which regularly fluctuates its topography. In this paper we explained the detection and prevention of wormhole attack in WiMAX based mobile adhoc network (MANET) with AODV routing protocol. In this attack the attacker mobile nodes keeps packet to another location of the network and then forward it to another attacker mobile node away from the tunneling. This research work is carried out in Network Simulator (NS2) software. Initially the basis WiMAX based mobile adhoc network is formed with AODV routing protocol and then by inserting wormhole attack the performance parameters like throughput, delay and packet delivery ratio are considered for analysis of the designed mobile adhoc network.