Performance Analysis of AODV Routing in NS2

In the recent years, lots of research are going on in the area of Mobile Ad hoc NETworks (MANETs). This network is infrastructure-less network where nodes communicate with each other without any aid of centralized administration. Unfortunately, this feature causes the network vulnerable to various types of attacks. Hence, it is a challenging task in front of researcher to find out the suitable remedy to conciliate attacks in routing protocols. In this paper, we simulate black hole, flooding and rushing attacks which are threats in Ad hoc On-demand Distance Vector (AODV) routing protocol to analyze their impacts on this protocol using NS-2 network simulator. Previous researches take only one attacker or just the network size or the mobility to test their performance analysis, however, in this security analysis, we take into consideration the network size, the mobility, the traffic load and finally the number of the attackers. We use packet delivery ratio, average end-to-end delay and throughput as performance evaluation metric. Our simulation results show that the black hole attack have a severe impact on the network performance while the flooding and rushing attacks have less significant effect on the network performance.