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Lifetime Maximization of Monitoring Sensor Networks

Lifetime Maximization of Monitoring Sensor Networks
Conference:

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

Year:

2010

Location:

Bordeaux, France

Links:PDF
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.