Applied Mathematics & Information Sciences

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Node sleep scheduling is one of the most important methods to improve energy-constrained wireless sensor networks. Most existing approaches to solve this problem require sensors’ location information, which may be impractical considering high positioning costs. In this paper, an energy balanced non-uniform distribution node scheduling algorithm (EBNDNS) is proposed and evaluated. This method needs distance between sensors instead of location information. A simple non-uniform distribution strategy is also proposed. Combined with this strategy, simulation results show that EBNDNS can relieve the “energy-hole” problem for the multi-hop communication and significantly prolong the lifetime of networks.

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