Routing of internal MANET traffic over external networks

  • Authors:

  • Vinh Pham;Erlend Larsen;Øivind Kure;Paal Engelstad

  • Affiliations:

  • Unik, Gunnar Randers vei 19, 2007 Kjeller, Norway;Unik, Gunnar Randers vei 19, 2007 Kjeller, Norway;Q2S, Department of Telematics, NTNU, O.S. Bragstads plass 2a, N-7491 Trondheim, Norway;Simtel, Simulat/Telernor, P.O.Box 134, 1325 Lysaker, Norway. E-mail: {vph,erl,okure,paalee}@unik.no

  • Venue:
  • Mobile Information Systems
  • Year:
  • 2009

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Abstract

Many have proposed to connect Mobile Ad Hoc Networks (MANETs) to a wired backbone Internet access network. This paper demonstrates that a wired backbone network can be utilized for more than just providing access to the global Internet. Traffic between mobile nodes in the ad hoc network may also be routed via this backbone network to achieve higher throughput, and to reduce the load in the ad hoc network. This is referred to as transit routing. This paper proposes a cost metric algorithm that facilitates transit routing for some of the traffic flows between nodes in the MANET. The algorithm aims at carrying out transit routing for a flow only when it leads to improvements of the performance. The proposal is implemented and tested in the ns-2 network simulator, and the simulation results are promising.