Abstract
Mobile ad hoc network (MANETs) is an emerging
area with practical applications. One such field concerns
mobile ad hoc networks (MANETs) in which mobile nodes
organize themselves in a network without the help of any
predefined infrastructure. Securing MANETs is an important
part of deploying and utilizing them, since them are often
used in critical applications where data and communications
integrity in important. Existing solutions for wireless
networks can be used to obtain a certain level of such security.
Nevertheless, these solutions may not always be sufficient, as
ad-hoc networks have their own vulnerabilities that cannot
be addressed by these solutions. To obtain an acceptable level
of security in such a context, traditional security solutions
should be coupled with an intrusion detection mechanism.
We propose using a quantitative method to detect intrusion in
MANETS with mobile nodes. Our method is a behavioral
anomaly based system, which makes it dynamic, scalable,
configurable and robust. Finally, we verify our method by
running ns2 simulations with mobile nodes using Ad-hoc ondemand
Distance Vector (AODV) routing. It is observed that
the malicious node detection rate is very good, and the false
positive detection rate is low.
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