The perfect simulator for any type of networks either it be testing a malicious nodes or testing a new algorithm or setting up scenarios ns2 does it all with ease. The latest of networking IEEE projects are carried out with us.
Network Simulator Version2 also known as NS-2. Numerous state of the art simulation tools are available for network research. Among the available simulators, NS-2 is the widely used and highly recognized open source network simulator. The simulation behaviour of NS-2 is highly trusted within the research community. It is a dependable and realistic discrete event based simulator tool and proves to be more practicable. It is primarily designed based on OSI model to support wired networks. CMU wireless extension of NS2 extensively supports wireless networks.