无线传感器分级休眠模型的研究

为了提高无线传感器的有效工作时间，在无线传感器处于等待状态时，令其休眠
是重要的一种降低功耗策略。分析已有的两种无线传感器分级休眠能耗模型的特点，指出这两种模型是单部件无线传感器分级休眠模型，它们不适用于多部件组成的无线传感器。从而分析由双部件组成的无线传感器分级休眠能耗模型，推导了最小有效休眠时间公式，并指出了这个模型的改进之处。由已有的实验数据计算可知，双部件模型较单部件模型的最小有效休眠时间公式有较大的改进。
关键词：无线传感器网络；节点；休眠；低功耗

Research on Sleep-state Transition Policy In Wireless Sensor Network Node
ZHENG Yuhuang, LI Di, YE Feng (School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou Guangdong, 510640)
[Abstract] In order to increase life time of wireless sensors, when wireless sensor is in waiting
mode, sleep mode is an important state for lower power consumption of wireless sensor. In this paper, two wireless sensor models of different sleep states and power consumption are analyzed. These models are classified in the single component wireless sensor model of different sleep states and these models are not suitable to the wireless sensor which is composed of more components. We consider double components wireless sensor model of different sleep states and power consumption model, deduce the minimum effective sleep time formula, and compare this model with the model above. From the experimental data, the minimum effective sleep time formula of double components wireless sensor is better than that of single components model of wireless sensor.
[Keywords] Wireless Sensor Network; Node; Sleep mode; Low-power