WSN基于多移动sink的高效数据收集协议  

Efficient data collection protocol for WSN based on multiple mobile sinks

作　　者：梁青[1] 焦峰[1] 

机构地区：[1]西安邮电大学电子工程学院,陕西西安710061

出　　处：《计算机工程与设计》2016年第12期3191-3195,共5页Computer Engineering and Design

基　　金：国家自然科学基金项目(61202490);陕西省自然科学基础研究计划基金项目(2014JM2-6117);陕西省教育厅专项科研计划基金项目(15JK1654)

摘　　要：为延长无线传感器网络的生存周期,提出基于多移动sink的高效数据收集协议EPBM。整个网络采用分簇机制,将网络分为4个面积相等的子域,根据各子域节点的覆盖率及死亡率依次确定子域内移动sink的轨迹和运动状态。移动sink与固定sink并存,簇头将收取的信息发送至距自己跳数最小的sink。仿真结果表明,EPBM在基站获取信息量、网络剩余能量和存活节点数3方面都优于LEACH算法,EPBM可延长网络生存周期,提高网络的数据收集效率。To improve the survival period of wireless sensor networks,an efficient data collection protocol for wireless sensor networks based on multiple mobile sinks called EPBM was proposed.The entire network was based on clustering mechanism,which was initially divided into four equal subdomains.The mobile sinks＇ trajectories and motion states were determined by the coverage rate and the mortality rate of each subdomain.Cluster heads collected interests in the cluster and sent the data to the nearest sink with the minimum hop counts,where static and mobile sink nodes coexisted.The simulation results show that EPBM is better than LEACH algorithm from three aspects including the base station to obtain information,the remaining energy of the network and the number of surviving nodes.EPBM can improve the lifetime of wireless sensor networks and improve the efficiency of data collection.

关 键 词：无线传感器网络 移动SINK 分簇机制 覆盖率 死亡率 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]