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Dempster-Shafer theory for intrusion detection in ad hoc networks

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2 Author(s)
Chen, T.M. ; Southern Methodist Univ., Dallas, TX, USA ; Venkataramanan, V.

Without a fixed security infrastructure, mobile ad hoc networks must distribute intrusion detection among their nodes. But even though a distributed intrusion-detection system can combine data from multiple nodes to estimate the likelihood of an intrusion, the observing nodes-might not be reliable. The Dempster-Shafer theory of evidence is well suited for this type of problem because it reflects uncertainty. Moreover, Dempster's rule for combination gives a numerical procedure, for fusing together multiple pieces of evidence from unreliable observers. The authors review the Dempster-Shafer theory in the context of distributed intrusion detection and demonstrate the theory's usefulness.

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Internet Computing, IEEE  (Volume:9 ,  Issue: 6 )