Energy-Aware On-Demand Routing for Mobile Ad Hoc Networks

  • Nishant Gupta
  • Samir R. Das
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2571)


We develop a technique to make on-demand routing protocols for ad hoc networks energy-aware. The goal is to increase the operational lifetime of an ad hoc network where nodes are operating on battery power alone. Our techniques uses a new routing cost metric which is a function of the remaining battery level in each node on a route and the number of neighbors of this node. The idea of the cost metric is to be able to route around the nodes that are running low in battery for which alternate routes are available. In addition, rerouting is done proactively when any node en route starts running low on battery while the route is being actively used. Further, we save energy by switching off the radio interfaces dynamically during the periods when the nodes are idle. Simulation results using AODV protcol show that combination of these techniques results in a significant improvement of the energy budget of the network as a whole resulting in increased operational life time.


Medium Access Control Data Packet Route Discovery Battery Power Radio Interface 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Nishant Gupta
    • 1
  • Samir R. Das
    • 2
  1. 1.OPNET Technologies, Inc.BethesdaUSA
  2. 2.Computer Science DepartmentSUNY at Stony BrookNYUSA

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