Title: ETUS: enhanced triple umpiring system for security and robustness of wireless mobile ad hoc networks

Authors: Ayyaswamy Kathirvel, Rengaramanujam Srinivasan

Addresses: Tagore Engineering College, Chennai – 600 048, Tamilnadu, India. ' Tagore Engineering College, Chennai – 600 048, Tamilnadu, India

Abstract: Ad hoc wireless networks provide mobile communication capability to satisfy a need of a temporary nature and without the existence of any well-defined infrastructure. Protecting the network layer from malicious attacks is an important and challenging issue in both wired and wireless networks and the issue becomes even more challenging in the case of wireless mobile ad hoc network. In this paper, we propose a solution of triple umpiring system (TUS) that provides security for routing and data forwarding operations. In our system, each node|s behaviour from source to destination is closely monitored by a set of three umpires. If any misbehaviour is noticed, umpires flag off the guilty node from the circuit. We have proposed two enhancements to the basic TUS for salvaging the circuit during disruptions in route reply and data forwarding phases. The model with these two enhancements is called ETUS. We have implemented TUS and ETUS by modifying the prominent AODV protocol. Extensive investigation studies using QualNet 5.0.2 establish the soundness and robustness of the proposal.

Keywords: wireless networks; mobile ad hoc networks; MANETs; TUS; enhanced triple umpiring system; ETUS; malicious nodes; network security; robustness; robust networks; malicious attacks; routing; data forwarding.

DOI: 10.1504/IJCNDS.2011.040983

International Journal of Communication Networks and Distributed Systems, 2011 Vol.7 No.1/2, pp.153 - 187

Received: 25 Jan 2010
Accepted: 10 Oct 2010

Published online: 28 Jun 2011 *

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