摘要
研究了节点移动的无线传感器网络的路由问题,提出了一种能耗更为均衡的改进路由算法.在经典分簇路由算法的基础上进行了改进:一是簇结构的范围限制在自由空间模型的传输临界距离d0半径范围之内,较小范围的簇结构在移动环境能相对保持稳定,还能节省数据传输的能耗;二是簇头采用了复合权值的方式进行选择,权值不仅考虑节点能量,还考虑节点的移动速度和聚集性.仿真实验证明改进后的算法有效提高了无线传感器网络的能耗均衡性,延长了网络的生存时间,节点的数据发送成功率相对于经典分簇路由算法也得到了较大提高.
The routing problem of mobile wireless sensor network was investigated and a balanced energy consumption algorithm was proposed.The clustering phase has various considerations： First,limit the scope of the cluster structure with the d0 transmission radius of free space model and the smaller clusters not only can be relatively stable in the mobile range but also can save energy for data transmission;Second,a method of composite weights was used to choose the cluster heads,the weight of the node not only considered the energy of sensor nodes but also considered node speed and node aggregation.Compared to low energy adaptive clustering hierarchy,the results in the simulation show that the improved algorithm effectively improved the energy balance of wireless sensor networks,prolonged the network lifetime and increased the success rate of data transmission.
出处
《佳木斯大学学报（自然科学版）》
CAS
2012年第2期237-240,共4页
Journal of Jiamusi University：Natural Science Edition
关键词
无线传感器网络
路由算法
能耗均衡
移动节点
复合权值
wireless sensor network
routing algorithm
balanced energy consumption
mobile node
composite weight
