Dempster-Shafer Theory for Intrusion Detection in Ad Hoc Networks

  • Authors:
  • Thomas M. Chen;Varadharajan Venkataramanan

  • Affiliations:
  • Southern Methodist University;Southern Methodist University

  • Venue:
  • IEEE Internet Computing
  • Year:
  • 2005

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Abstract

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驴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驴s usefulness.