无线传感器网络中基于最小跳数路由的节点休眠算法

摘要

结合无线传感器网络中的最小跳数路由协议,根据功能的不同将传感器节点分为只进行数据采集的终端节点和既进行教据采集又要转发数据的中间节点两类;提出一种节点休眠算法,对前述两种节点采取不同的休眠/唤醒策略以降低能耗.理论分析和仿真结果表明:所提节点休眠算法节约了节点能量,延长了无线传感器网络的寿命.%Network nodes were divided into terminal nodes and intermediate nodes according to the different functions with reference to the minimum hop routing protocol in wireless sensor networks.Terminal nodes only collected data, while intermediate nodes not only collected data but also forwarded them.A node sleeping algorithm consisting of different sleep/wake-up strategies was proposed for the two kinds of nodes to reduce energy consumption.The theoretical analysis and simulation results show that this proposed node sleeping algorithm can reduce the energy consumption of nodes and extend the lifetime of wireless sensor network.