Wi-Fi无线通信协议英文讲义

Wi-fi wireless communication
3
The structure
❖ Generally set up wireless network base is equipped with a wireless network card and an AP, so then you can in a wireless mode,cooperate with the existing cable architecture to share network resources, set up cost and complexity is much lower than the traditional wired network.If only a few computer peer-to-peer network, also don't want to the AP, just need to every computer equipped with a wireless network card.AP for the Access Point, generally translated as "wireless Access Access points", or "bridge".It is mainly played in the media access control MAC layer wireless workstation and cable bridge of local area network.With the AP, as general cable network Hub, wireless workstations are connected to the network can quickly and easily.Especially for the use of broadband, wi-fi more advantages, cable broadband network (ADSL, residential LAN, etc.) to the home, after connecting to a AP, then install a wireless network card in the computer.Ordinary families have a AP is enough, even after authorized by the user's neighborhood, you do not
❖ Wireless network technology by the Australian government institutions CSIRO invented in the 90 s and in the United States in 1996 successfully applied for wireless networks technology patents.(US Patent Number 5487069). The inventor is the university of Sydney engineering graduate Dr John O 'Sullivan led a group of research team of university of Sydney engineering graduate.
technical, in fact it is a high
frequency radio signals.Radio is a
wireless network communication
technology brand, held by the wi-fi
alliance.The purpose iБайду номын сангаас to improve
Date:2019
1
What is the WiFi
❖
The wi-fi, wi-fi, Chinese is a
kind of personal computers,
handheld devices can be (such as
PAD, mobile phone) terminal
wirelessly connected to each other
the wireless network based on the
IEEE 802.11 standard
interoperability between products.
Wi-fi wireless communication
2
background
❖ Wireless network is defined the IEEE wireless network technology, in 1999, the IEEE 802.11 standard official definition, IEEE selected and identified CSIRO invention of the wireless network technology is the best in the world of wireless networks technologies, so the CSIRO standard of wireless network technology, has become a wi-fi at the core of the technical standards in 2010.
❖ IEEE had asked the Australian government to give up its patent wireless network, make the world a free use wi-fi, but was rejected.The Australian government in the United States through the court ruling or later settled out of court, collected almost all electrical telecom companies in the world (including apple, Intel, lenovo, dell, AT&T, SONY, Toshiba and Microsoft, acer, asus, etc.) of royalties.We every purchase contains 2010 wi-fi technology of electronic equipment, the price is included to which we pay for the Australian government's wi-fi royalties.