Gesellschaft fr Informatik e.V.

Lecture Notes in Informatics

Detection of Intrusions and Malware & Vulnerability Assessment, GI SIG SIDAR Workshop, DIMVA 2004, Dortmund, Germany, July 6.7, 2004 P-46, 83-97 (2004).

GI, Gesellschaft für Informatik, Bonn


Ulrich Flegel, Michael Meier (eds.)

Copyright © GI, Gesellschaft für Informatik, Bonn


Sensors for detection of misbehaving nodes in manets

Frank Kargl , Andreas Klenk , Michael Weber and Stefan Schlott


The fact that security is a critical problem when implementing mobile ad hoc networks (MANETs) is widely acknowledged. One of the different kinds of misbehavior a node may exhibit is selfishness. A selfish node wants to preserve its resources while using the services of others and consuming their resources. One way of preventing selfishness in a MANET is a detection and exclusion mechanism. In this paper, we focus on the detection and present different kinds of sensors that will find selfish nodes. First we present simulations that show the negative effects which selfish nodes cause in MANET. In the related work section we will analyze the detection mechanisms proposed by others. Our new detection mechanisms that we describe in this paper are called activity-based overhearing, iterative probing, and unambiguous probing. Simulation-based analysis of these mechanisms show that they are highly effective and can reliably detect a multitude of selfish behaviors.

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GI, Gesellschaft für Informatik, Bonn
ISBN 3-88579-375-X

Last changed 24.01.2012 21:45:57