文档介绍：2012届本科毕业论文
wifi技术与覆盖研究
单位:
专业:
姓名:
mpw
指导教师:
完成年月:
二○一二年六月
摘要
wifi是一种短距离无线传输技术,有着高速、便捷的特点,可以使用户随时随地访问网络,目前已经在包括家庭、办公室,以及越来越多的咖啡屋、酒店、机场等场所得到了大范围的应用。而且wifi前瞻性高,使得众多厂商都对其提供支持,wifi领域的研发和市场将继续不断扩大。本文首先对wifi技术进行了总体阐述,介绍了wifi技术发展历程、wifi网络研究现状及技术特点,然后从技术原理、优缺点等方面详细介绍了wifi中采用的MIMO、OFDM、智能天线等关键技术,再经过对wifi网络覆盖与优化的认真分析,重点研究了wifi网络的应用。wifi网络在民用领域已经得到广泛使用,有着成熟的应用模式,许多行业都部署了wifi网络。随着wifi的不断改进,相信这种技术将会得到更加广泛的应用,在未来,wifi将具有广阔的发展前景。
关键词:wifi 技术网络覆盖应用
Abstract
wifi is a short-range wireless transmission technology, has a high-speed, convenient features, allows users to access work anytime, anywhere, including homes, offices, and a growing number of coffee shops, hotels, airports and other places has been a bigrange of applications. Wifi forward-looking, so many manufacturers to support them, wifi areas of R & D and the market will continue to expand. Overall elaborated first wifi technology, wifi technology development process of the work Research and technical features, and details from the technical principles, advantages and disadvantages, MIMO, OFDM, smart antennas and other key technologies used in wifi after a careful analysis of the work coverage and optimization focuses on the application of the work. work has been widely used in civilian areas, has a mature application mode, many industries are deployed to the work. With the continuous improvement of wifi, I believe this technology will be more widely used, in the future, the wifi will have broad prospects for development.
Keyword:wifi work coverage application
目录
1 wifi技术概述 1
wifi简介 1
wifi技术发展历程 1
wifi网络研究现状 2
wifi技术特点 2
2 wifi关键技术 4
MIMO技术 4
MIMO技术概述 4
MIMO技术原理 4
MIMO的三种主要技术 5
MIMO三种技术的优缺点及应用场景 5
OFDM技术 6
OFDM技术原理 6
OFDM系统的关键技术 6
OFDM技术的优点 7
OFDM技术的缺点 7
MIMO-OFDM技术 8
MIMO与OFDM的结合 8
MIMO-OFDM系统的关键技术 8
9
9
智能天线系统 9
11
无线局域网络 11
11