基于流量控制的无线传感器网络生命期算法  

Maximum Lifetime Routing Based on Flow Controlling Algorithm in Wireless Sensor Networks

作　　者：林海峰[1] 高德民[1] 蒋安娜 

机构地区：[1]南京林业大学信息科学技术学院,江苏南京210037

出　　处：《计算机仿真》2016年第2期340-344,共5页Computer Simulation

基　　金：江苏省自然科学基金项目(BK20141474);江苏省林业三新工程项目(LYSX[2014]07);江苏省博士后科研资助计划项目(1402018C);南京林业大学高学历人才基金项目(G2014017)

摘　　要：针对无线传感器网络节点能量有限性和网络动态拓扑性特点,为避免节点频繁在路径创建中的能量消耗,提出一种采用流量控制的最大生命期通信路由模型,以网络数据权函数因子为模型,计算网络保持稳定的节点汇聚数据量上界时的数据最小转发速率,数据延权函数最大梯度向基站转发,数据不会在节点处和链路中持续聚集,节点不需要定位支持,且不需要考虑整个网络的拓扑情况,算法以线性复杂度实现网络节点最大生命期。仿真结果表明,提出的路由算法可以保持系统的稳定性和有效延长网络生命期。Considering the limited energy supply and dynamic topology for wireless sensor networks,in order to avoid energy consumption in the process of path creation frequently,a maximum network lifetime routing protocol based on flow control algorithm is proposed. If the data flow through a node reduces,its lifetime will increase. On the other hand,reduction in flow will result in accumulation of more commodities and thereby increment in delay. A weight function model associated with every flow is defined. An optimization technique of the flow through each node is presented,which resultant flows make the lifetime of the nodes maximum. It is proved that this is indeed the shortest path routing in disguise. Simulation results show that the proposed algorithm increases the node＇s lifetime.

关 键 词：无线传感器网络 最大生命期 流量控制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]