无线局域网(WLAN)作为个人通信的一个主要组成部分,它与生俱来的诸多优越性决定了它的迅速发展,使得越来越多的研究指向了无线局域网。IEEE为无线局域网制定了几个标准,主要有802.11、802.11a、802.11b、802.11g等。本次毕业设计主要目的就是研究IEEE802.11无线局域网传输,主要研究802.11b,其中对它的协议、特点和应用范围做了主要介绍。另外,还对传输技术直接序列扩频(DSSS),跳频扩频技术(FHSS)的特点及优点做了研究,同时还未两者做了比较和探讨。
【关键词】:无线局域网;扩频通信;直接序列扩频
Wireless LAN (WLAN) as a personal communication is a major component of its inherent superiority of the many decisions of its rapid development, making more and more studies point to a wireless LAN. IEEE for wireless LAN development of a number of standards, the main 802.11,802.11 a, 802.11b, 802.11g, and so on. The main purpose is to graduate design research IEEE802.11 wireless LAN transmission, mainly on 802.11 b, one of its agreement, characteristics and applications are introduced done. In addition, the transmission technology direct sequence spread spectrum (DSSS), frequency-hopping spread spectrum technology (FHSS) the characteristics and advantages of doing the study, both at the same time have not yet done a comparison and study.
Key words: Wireless LAN; spread spectrum, direct sequence spread spectrum
Wireless LAN (WLAN) as a personal communication is a major component of its inherent superiority of the many decisions of its rapid development, making more and more studies point to a wireless LAN. IEEE for wireless LAN development of a number of standards, the main 802.11,802.11 a, 802.11b, 802.11g, and so on. The main purpose is to graduate design research IEEE802.11 wireless LAN transmission, mainly on 802.11 b, one of its agreement, characteristics and applications are introduced done. In addition, the transmission technology direct sequence spread spectrum (DSSS), frequency-hopping spread spectrum technology (FHSS) the characteristics and advantages of doing the study, both at the same time have not yet done a comparison and study.
Key words: Wireless LAN; spread spectrum, direct sequence spread spectrum
你好,很高兴能看到您的问题!
我只是告诉你几个不好发音的噢!
automobile:爱头某必要
contemporary:抗探m破儿锐
indispensable:印第s喷色报
example:一客赞m泡
Volkswagen:沃克s外跟
Chrysler:克瑞斯了
Peugeot:屁咒t
Fiat:飞亚特
Toyota:特游他
Honda:宏大
Nissan:尼三
我只能帮你这些了,剩下不会的,你可以查一查金山词霸,里面有发音,也可以问一问英语老师
希望能帮到你!