Importance of the Considering Bottleneck Intermediate Node During the Intrusion Detection in MANET

Abstract

Routing protocols are responsible to enable efficient communication in any networking environment. Mobile Ad Hoc Networks are an infrastructure-less, distributed and peer-to-peer networks. Most of the routing protocols designed in this network are based on the consideration that the nodes in the network are supportive and cooperate for multi-hop communication. This consideration is not authentic in the hostile environment. The nodes violate the routing protocol specifications and drop the packets, and known as malicious nodes. However, reputed intermediate nodes also drop the packets whenever they receive the packets more than their handling capabilities, and known as bottleneck intermediate nodes. In order to overcome the situation, various intrusion detection and prevention systems (IDS) are designed. The aim of the IDS is to mitigate the packet dropping nodes from network, but they do not recognize the packet dropping node is either malicious or reputed. The paper aim is to investigate the performance of the existing IDS in the presence of the reputed packet dropping nodes in the network. Performance evaluation is carried out by network simulator, NS-2. The results show that neglecting the reputed packet dropping nodes by IDS algorithms is a serious problem and it negatively impacts on the network performance.KeywordsMANETIntrusion detection systemBottleneck nodeRoutingSimulation