无线传感器网络的动态电压调节算法研究  

Dynamic Voltage Scaling in Wireless Sensor Networks

作　　者：魏图明[1] 余思佳[1] 魏海龙[1] 

机构地区：[1]电子科技大学机械电子工程学院,四川成都611731

出　　处：《微电子学与计算机》2011年第5期23-27,共5页Microelectronics & Computer

摘　　要：对于能量有限的无线传感器网络,研究如何高效地利用有限能量具有重要意义.根据无线传感器网络多跳路由和拓扑易变的特点,提出一种基于任务驱动的含反馈的动态电压调节算法FB-DVS.该算法根据节点的任务集实时地调节节点的工作电压和频率,并通过反馈环节来修正误差,在保证任务实时性的前提下降低节点能耗.通过对仿真结果分析表明,改进的算法能有效地减少节点的能量消耗,延长无线传感器网络的生命周期.It is significant to research how to use the limited power efficiently for the energy contained wireless sensor networks.This paper proposed a tasks-driven feedback dynamic voltage scaling algorithm（FB-DVS） that based on the multihop routing and easily changed topology.FB-DVS could scale the working frequency and voltage levels dynamically according to the workload of sensor node,and fix the errors through feedback scheme and reduce the node′s power consumption at the premise of real-time tasks.The results of simulation indicated that the improved algorithm could effectively reduce the energy consumption and prolong the life of wireless sensor networks.

关 键 词：动态电压调节 能量有效性 功耗优化 无线传感器网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]