关键词: 无线传感器网络, 最小跳数, 能量有效性, 二分查找算法, 功率自适应

Abstract: A strategy for the energy-efficient used in wireless sensor network is proposed，which uses a mixed method including minimum hop and power adapting. In the perceptive phase for the task，the sink node adapts the minimum hop method to determine the routed message，and determines the backup route message with the possible condition，and then determines the minimum power of the node with the dimidiate arithmetic based on the routed message. In the perceptive phase for the data，the sink node sends the data to the object node with the determinate route message and power. According to the analysis of this strategy，it shows that the strategy can reduce much power consumption.

Key words: Wireless Sensor Network（WSN）, minimum hop, energy-efficient, dimidiate arithmetic, power adapting