无线传感器网中目标定位算法的研究  

Research on Target Locating Algorithms in Wireless Sensor Networks

作　　者：孙学斌[1] 周正[1] 

机构地区：[1]北京邮电大学无线网络研究室,北京100876

出　　处：《计算机工程与应用》2004年第3期132-134,184,共4页Computer Engineering and Applications

基　　金：电子工业发展基金资助项目(编号:20001077)

摘　　要：该文提出了一种无线传感器网中的目标定位算法,用以获取在无线传感器网监视下的地理区域中移动目标的位置。该算法首先找到一个曾监测到目标的节点,然后利用相邻节点间的本地消息跟踪目标的运动轨迹。论文实现了该算法并与优化的洪泛定位算法进行了比较,仿真结果表明,该算法有效地减少了目标定位过程中传输的消息数量,节省了网络带宽,降低了节点能源的消耗,从而增强了资源受限的无线传感器网的实用性。This paper proposes a target locating algorithm to locate a target moving through a geographic area under surveillance of a wireless sensor network.This algorithm finds a sensor node that has detected the target,and then using local messages between neighboring nodes to follow the trail of the target.This paper implements this algorithm and compares it with an optimized flood -based locating algorithm.Simulation results show that this algorithm effectively reduces the message transmissions,conserves bandwidth and energy,and consequently enhances the practicability of resource-limited wireless sensor networks.

关 键 词：无线传感器网络 定位算法 能源节省 目标定位 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]