数字无线局域网的关键技术及网络结构研究  

Research on the key technology and network structure of digital wireless LAN

作　　者：张建伟 Zhang Jianwei(College of physics and optoelectronic technology, Baoji University of Arts and Sciences, Baoji 721016, China)

机构地区：[1]宝鸡文理学院物理与光电技术学院

出　　处：《国外电子测量技术》2018年第5期78-84,共7页Foreign Electronic Measurement Technology

基　　金：陕西省教育厅科学研究计划项目(16JK1045);宝鸡市科技计划项目(2013R1-5);宝鸡文理学院重点项目(ZK2017002)资助

摘　　要：目前在无线局域网建设和应用中普及的WiFi技术,是基于IEEE802.11系列标准的无线互联网传输技术,该技术开创了各种无线终端可直接通过无线电波来高速接入互联网的信息化时代。首先研究了IEEE802.11x系列标准的演进,然后研究了无线局域网的无中心和有中心两类拓扑结构,提出了采用分层组网架构的核心网网络结构。针对物理层关键技术中的抗干扰技术、AC资源池技术和移动切换技术进行了分析,提出了一种基于混合路由的移动切换方案。对数字无线局域网的进一步建设和普及具有一定的指导意义。WiFi technology is popularized in the construction and application of wireless local area network（WLAN）.This wireless internet transmission technology based on IEEE802.11 series standard,this technology has initiated the information age that wireless terminals can access the internet directly through radio waves.Firstly,it summarized the evolution of IEEE802.11 xseries standards formulated by IEEE,which belong to WiFi technology.On this basis,two types of topology of WLAN are studied,and a core network structure with hierarchical network architecture is proposed.Then it analyzed the anti-jamming technology,AC resource pool technology and mobile handover technology in the key technology of physical layer,a mobile switching technology based on hybrid routing is proposed.It has a certain guiding significance for the further construction and popularization of the digital wireless LAN.

关 键 词：数字无线局域网 WIFI技术 标准演进 抗干扰技术 移动切换技术 AC资源池 网络结构 

分 类 号：TN929.5[电子电信—通信与信息系统]