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Node deployment strategy for a mobile sink in wireless sensor networks

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2 Author(s)
Huiyong Yuan ; Dept. of Comput. Sci., Hunan Inst. of Humanities, Sci. & Technol., Loudi, China ; Jiansheng Xie

In multi-hop wireless sensor networks, the nodes closest to the sink tend to deplete their energy faster than other nodes, which is known as energy-hole problem. To address this problem, we first study the mobile sink model, and conclude the best mobility strategy. We then consider jointly sink mobility and node deployment, and formulate optimization problems that maximize the network lifetime subject to energy depletion balance. Finally, we propose a non-uniform node deployment strategy for periodical data gathering in sensor networks. Simulation experiments show that the proposed deployment strategy outperforms random deployment better scalability and longer network lifetime.

Published in:

Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on

Date of Conference:

27-29 May 2011