用于无线传感器网络的节能路由模型与仿真  

An Energy-Efficient Routing Model for Wireless Sensor Networks and Simulations

作　　者：马震[1] 刘云[1] 沈波[1] 

机构地区：[1]北京交通大学通信与信息系统北京市重点实验室,北京100044

出　　处：《北京交通大学学报》2008年第5期43-47,共5页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家自然科学基金资助项目(60572035);通信与信息系统北京市重点实验室资助项目(JD100040513)

摘　　要：针对多跳无线传感器网络中传感器节点能耗不均衡的问题,本文提出了一种节能路由模型EER,并对模型进行了分析与仿真.EER在网络中动态划分节点簇,动态建立簇头节点到sink点的多跳路由,通过非线性算法控制节点簇的尺寸,采用局部信息汇聚与汇聚信息多跳传递相结合的方式向sink点传递数据,从而达到平衡节点能耗的目的.仿真结果表明,EER在建立无线传感器网络节点到sink点的节能路由、平衡无线传感器网络节点的能耗和延长整个网络生命期等方面,都有较好的性能.与LEACH相比,节点数量下降10%的时间延长了0.9倍.This paper proposed an energy-efficient routing model （EER） for the issues of imbalaneed energy eonsumption of nodes in multi-hops wireless sensor networks （WSN）. EER partitions dynamieally the nodes of a WSN into several clusters and sends eluster nodes to the multi-hops of sink nodes, by employing a nonlinear algorithm to control their size, and construets multi-hops route from the head of each cluster to the sink node dynamically. Using the methods that combine local information aggregation with multi-hops transfer of aggregated information, the purposed balance energy consumption of nodes is achieved. Simulation results shown that EER has better performance on several perspectives, e.g. constructing the energy efficient route from nodes to the sink node, balancing the energy consumption of nodes, and prolonging the lifespan of the whole network. Comparing to LEACH, the time that the number of nodes decreased of 10% was extended 0.9 times.

关 键 词：传感器网络 节能路由 分簇 生命期 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]