Energy efficient coverage and connectivity problem in wireless sensor networks

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2008

Author

Baydoğan, Mustafa Gökçe

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In this thesis, we study the energy efficient coverage and connectivity problem in wireless sensor networks (WSNs). We try to locate heterogeneous sensors and route data generated to a base station under two conflicting objectives: minimization of network cost and maximization of network lifetime. We aim at satisfying connectivity and coverage requirements as well as sensor node and link capacity constraints. We propose mathematical formulations and use an exact solution approach to find Pareto optimal solutions for the problem. We also develop a multiobjective genetic algorithm to approximate the efficient frontier, as the exact solution approach requires long computation times. We experiment with our genetic algorithm on randomly generated problems to test how well the heuristic procedure approximates the efficient frontier. Our results show that our genetic algorithm approximates the efficient frontier well in reasonable computation times.

Subject Keywords

Industrial engineering.

URI

http://etd.lib.metu.edu.tr/upload/12609688/index.pdf
https://hdl.handle.net/11511/17688

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

M. G. Baydoğan, “Energy efficient coverage and connectivity problem in wireless sensor networks,” M.S. - Master of Science, Middle East Technical University, 2008.