Mesh网络中拓扑控制策略研究  

Research on Topology Control System for Mesh Networks

作　　者：章静[1,2] 许力[1] 

机构地区：[1]福建师范大学数学与计算机科学学院,福州350007 [2]福建工程学院计算机与信息科学系,福州350108

出　　处：《小型微型计算机系统》2013年第1期140-144,共5页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(61072080)资助

摘　　要：WMN具有多跳、自组织、配置灵活等特性,提出一种拓扑感知的分簇算法,通过使用节点位置信息来降低分簇的开销,并选举出簇头节点,进一步选举出了履行Mesh路由职责的节点并互连构成主干寻呼树,Mesh终端可通过簇头主干寻呼树,寻呼到基站BS,同时BS可通过主干寻呼树快速定位各Mesh终端.使用主干寻呼树进行信令传递将极大地提高在整个网络中分发的效率.理论上分析了上述方法应用于WMN的性能,并与其他方法进行了对比.数值分析结果显示,本文拓扑控制策略可以显著降低寻呼开销与时延,提高系统性能.同时Mesh路由的路由能力为WMN增强连接性和扩大覆盖范围,显著降低系统寻呼开销.Wireless Mesh Networks（WMN） contains not only the characteristics of wireless networks but also multi-hop,self-organizing,self-configuring,and so on.A topology-aware clustering algorithm（TCA） is introduced for WMN which can select the cluster head,node location information through the use of clustering to reduce the overhead,and the election of cluster head nodes,and by cluster head as Mesh routing functions and duties.All CH interconnection constitute main paging tree,mesh terminal can be through CH backbone paging tree,paging to base station BS,At the same time BS by backbone paging several soon orientation to the mesh terminals.Tree with trunk paging signaling transfer will greatly improve the efficiency of the entire distribution network.The good performance of this strategy is proved by theoretical analysis.The results of numerical analysis shows that based on TCA can significantly reduces paging cost and time delay,improve system performance.Meanwhile routing ability of mesh routing for enhanced connectivity and expand WMN coverage,reduce the system paging cost significantly.

关 键 词：MESH网络 分簇算法 拓扑控制 寻呼开销 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]