一种风车形状层次结构的WSN组播模型  

A Wireless Sensor Network Multicast Model Based on Hierarchical Windmill Structure

作　　者：许建真[1] 李韩芬[1] 李方菊[1] 

机构地区：[1]南京邮电大学计算机学院,江苏南京210003

出　　处：《微电子学与计算机》2012年第12期145-148,共4页Microelectronics & Computer

摘　　要：提出一种面向特定区域的高效节能的风车形状层次结构WSN组播模型(HWSM),该模型首先构建层次化风车环状结构,在每个环中选举出一个首节点,构成风车"轴心",同时选举出来的各个首节点构成上一级风车环状结构.环内节点采用组播方式进行数据分发,由首节点通过辐射路由一次遍历其它所有节点,完成数据传输.仿真实验证明,该模型可降低环内节点的能量消耗,提高数据传输效率,延长网络生存时间.A region-oriented and energy-efficient WSN multicast model based on hierarchical windmill structure （HWSM） is put forward here. Firstly, it sets up hierarchical ring-type multicast model and elects one leader from each ring group. Then, all those leaders elected from each ring group compose the upper level ring. Leader adopts the traversal method to deliver data to all the other nodes of the ring group by means of flooding routing method. Simulation results prove that, this model can reduce the energy consumption and improve the data transmission efficiency as well as lengthening the survival time of WSN.

关 键 词：无线传感器网络 风车形状 分层结构 节能 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]