Title: An efficient layered security framework for protecting network layer operations in mobile ad hoc networks

Authors: N. Jaisankar, R. Saravanan

Addresses: School of Computing Science and Engineering, VIT University, Vellore, Tamilnadu-632014, India. ' School of Computing Science and Engineering, VIT University, Vellore, Tamilnadu-632014, India

Abstract: In mobile ad hoc networks, the nodes are dynamically changing and they have a fully decentralised topology. Hence, security is hard to achieve due to the dynamic nature of the relationships between the participating nodes as well as the vulnerabilities and limitations of the wireless transmission medium. We proposed a novel agent-based framework to monitor, detect and isolate misbehaving nodes in the MANET. The proposed framework protect both routing and data forwarding operations, which aiming to improve the efficiency in detecting and isolating misbehaving nodes with a minimum overhead. In this paper, local neighbouring nodes collaboratively monitor and sustain each other. A novel truthfulness rate strategy is introduced in each node to determine the well-behaving nodes. We evaluate through network simulations the effectiveness of the framework in detecting malicious nodes and improving the network performance.

Keywords: mobile ad hoc networks; MANET; mobile agents; malicious nodes; routing; network layer security; packet forwarding; routing protocols; truthfulness rate; public key; false alarm rates; mobile networks; agent-based systems; multi-agent systems; MAS; simulation.

DOI: 10.1504/IJCNDS.2010.034950

International Journal of Communication Networks and Distributed Systems, 2010 Vol.5 No.3, pp.295 - 307

Available online: 31 Aug 2010 *

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