History based reliability: a novel routing metric in mobile ad hoc networks

  • Authors:
  • Yaser Taj;Karim Faez

  • Affiliations:
  • Department of IT and Computer Engineering, Qazvin Islamic Azad University, Qazvin, Iran;Department of Electrical Engineering, AmirKabir University of Technology, Tehran, Iran

  • Venue:
  • ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
  • Year:
  • 2010

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Abstract

A mobile ad hoc network has a dynamic topology. A route probably fails if intermediate nodes of the route have high mobility. In order to choose reliable nodes in a route, we define and quantify a novel routing metric called HBR that avoids choosing nodes with frequent failure history. Thus, route failure probability is decreased. We propose a routing scheme called HADDV based on the HBR metric. In HADDV, source node is able to determine its desired minimum reliability of route. HADDV is able to avoid waste of bandwidth caused by unreliable nodes. HADDV finds the most reliable route with a low overhead. Dur simulation experiments show that HADDV improves packet delivery ratio when nodes are mobile.