Institute of Theoretical Informatics, Algorithmics II

Lifetime Maximization of Monitoring Sensor Networks

  • Conference:

    International Workshop on Algorithms for Sensor Systems, Wireless Ad Hoc Networks and Autonomous Mobile Entities (ALGOSENSORS 2010)

  • Location:

    Bordeaux, France

  • Date:

    July 2010

  • Author(s):

    Peter Sanders, Dennis Schieferdecker

  • We study the problem of maximizing the lifetime of a sensor network assigned to monitor a given area. Our main result is a linear time dual approximation algorithm that comes arbitrarily close to the optimal solution if we additionally allow the sensing ranges to increase by a small factor. The best previous result is superlinear and has a logarithmic approximation ratio. We also provide the first proof of the NP completeness of this specific problem.

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