Robust Analysis for AODV Protocol in Vehicular Adhoc Network under Black Hole Attack in NS 2

Abstract

Security is one of biggest challenges in implementing adhoc network like VANET and MANET and it is due to changing behavior of topology of adhoc network. There are possibilities of various attacks like active and passive attack in network to change the real data or to steal the data. There are diverse types of passive attacks which are very dangerous for communication. Black hole attack in Vehicular Ad Hoc Network is major problem related with the field of computer networking. In this paper we present the performance analysis of the black hole attack in Vehicular Ad Hoc Network. We elaborate the different types of attacks and their depth in ad hoc network. The performance metric is taken for the evaluation of attack which depends on a packet end to end delay, network throughput and network load. In our base work black hole attack used in network communication using AODV protocol. As we know there are many issues in VANET and specially security issues. Therefore in our research work we proposed a new protocol which is known as GPSR which has superior result as compared to base work in term of end to end delay, energy consumption, packet delivery ratio, throughput and overhead. Besides this a security algorithm also implemented so that unauthorized person cannot access the authentic