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Lifetime maximization in wireless directional sensor network
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DOI：10.1016/j.ejor.2013.05.033.png)
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This paper addresses two versions of a lifetime maximization problem for target coverage with wireless directional sensor networks. The sensors used in these networks have a maximum sensing range and a limited sensing angle. In the first problem version, predefined sensing directions are assumed to be given, whereas sensing directions can be freely devised in the second problem version. In that base, a polynomial-time algorithm is provided for building sensing directions that allow to maximize the network lifetime. A column generation algorithm is proposed for both problem versions, the subproblem being addressed with a hybrid approach based on a genetic algorithm, and an integer linear programming formulation. Numerical results show that addressing the second problem version allows for significant improvements in terms of network lifetime while the computational effort is comparable for both problem versions. (C) 2013 Elsevier B.V. All rights reserved.
Keyword:
Wireless sensor networks
Directional sensors
Column generation
Heuristics
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6
论文数:
2.2W
被引数:
6.4W
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An exact approach for maximizing the lifetime of sensor networks with adjustable sensing ranges
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