Impact Analysis and a Detection Method for Misbehaving Nodes in Mobile Ad-hoc Networks
Saeed Azfar, Adnan Nadeem, Kamran Ahsan, Muhammad Sarim · 2014
Mobile Ad hoc Networks are one of the fast growing self organized networks, which has application in wider domains such as crisis management, battlefield, personal networking. However, due to cooperative nature of the network MANETs are vulnerable to various types of misbehaviour from both legitimate and malicious users. It is tricky to distinguish clearly between the normal behaviour and misbehaviour. Create a difference in those legal and illegal users are much difficult as we imagine. Mobility and flexibility are major advantages but presence of misbehaviour of nodes is one of the key factors of network performance degradation. In this paper, we first review and categorize possible misbehaviours in MANETs. We have also illustrated specific type of misbehaviours in this paper. We analyze the impact of misbehaving nodes on the network performance using a simulation based case study. Simulation results show the impact of misrouting and selfish misbehaviours of nodes by indicating the effect on throughput, packet delivery ratio and control packet overhead. Finally, we proposed a technique to locate, monitor and prevention of nodes from misrouting misbehaviour.