id: 05816297 dt: a an: 05816297 au: Sanders, Peter; Schieferdecker, Dennis ti: Lifetime maximization of monitoring sensor networks. so: Scheideler, Christian (ed.), Algorithms for sensor systems. 6th international workshop on algorithms for sensor systems, wireless ad hoc networks, and autonomous mobile entities, ALGOSENSORS 2010, Bordeaux, France, July 5, 2010. Revised selected papers. Berlin: Springer (ISBN 978-3-642-16987-8/pbk). Lecture Notes in Computer Science 6451, 134-147 (2010). py: 2010 pu: Berlin: Springer la: EN cc: ut: ci: li: doi:10.1007/978-3-642-16988-5_12 ab: Summary: 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 NP-completeness of this specific problem. rv: