摘要
IEEE 802.11是无线局域网的一项标准,过去的20多年,IEEE 802.11系列每一代标准的发布,都大幅提高了数据传输速率、优化性能。文章首先回顾了IEEE 802.11系列的发展历史,阐述了每一代标准的特点和功能,重点介绍了IEEE 802.11ax标准的核心技术,包括正交频分多址、多用户-多输入多输出、1024-QAM调制、双频设计技术,阐述了IEEE 802.11ax在智能家居、智慧医疗、智慧城市和智慧农业中的使用场景,最后,展望了IEEE 802.11ax在IoT领域未来的使用场景和发展趋势。
IEEE 802.11 is a standard for wireless local area networks.Over the past twenty years,the release of each generation of IEEE 802.11 series standards has significantly improved data transmission rates and optimized performance.Firstly,the development history of the IEEE 802.11 series was reviewed,and the characteristics and functions of each generation of standards were elaborated.The core technologies of the IEEE 802.11ax standard were emphasized,including orthogonal frequency division multiple access,multi user multi input multiple output,1024-QAM modulation,and dual frequency design technology.The usage scenarios of IEEE 802.11ax in IoT were explained,and the usage scenarios in smart homes,smart healthcare,smart cities,and smart agriculture were briefly introduced.Finally,Looking forward to the future usage scenarios and development trends of IEEE 802.11ax in the field of IoT.
作者
张帆
岳超刚
任丽媛
张笑
ZHANG Fan;YUE Chaogang;REN Liyuan;ZHANG Xiao(Yangling Vocational and Technical College,Xianyang 712100,China)
出处
《数字通信世界》
2023年第9期84-85,88,共3页
Digital Communication World
