ABSTRACT

Wireless Ad Hoc networks are characterized by dynamic change in topology, infrastructureless architecture and creation of a network on the fly. Being wireless and co-operative in nature Ad Hoc networks are more prone to security breaches compared to their wired counterparts in all layers of the network. Most security protocols do not address the anonymity issues which can be gathered by a passive eavesdropper who can gather node identity, node location and other network information. Another issue that will affect an Ad hoc network is the non co-operation of nodes which could be selfish or malicious. In this paper we investigate the performance degradation of a dynamic anonymous ad hoc network with various degrees of selfishness. The results obtained are compared with all nodes co- operating and with all selfish nodes eliminated in the network.