详细解析无线局域网(wlan)技术（Detailed analysis of wireless LAN (WLAN) technology）.docVIP

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详细解析无线局域网(wlan)技术（Detailed analysis of wireless LAN (WLAN) technology）.doc

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详细解析无线局域网(wlan)技术（Detailed analysis of wireless LAN (WLAN) technology）

详细解析无线局域网(wlan)技术（Detailed analysis of wireless LAN (WLAN) technology） Detailed analysis of wireless LAN (WLAN) technology,.Txt Lao Huyou, children called education, children cheat, Lao Zi called deception, flicker each other, called generation gap. The man in this world, I want to use what color to attract you. Detailed analysis of wireless LAN (WLAN) technology A wireless LAN can be used as an extension of the wired LAN and can also be used as an alternative to the wired LAN. Therefore, WLAN provides very strong networking flexibility. The growth of wireless LAN (WLAN) technology began in the middle of the 1980s. It was commissioned by the Federal Communications Commission (FCC) to provide public applications for industry, research, and medical (ISM) frequency bands. This policy has enabled major companies and end users to apply wireless products without the need for FCC licenses, thus promoting the development and application of WLAN technology. Unlike wired LANs, which communicate by wires such as copper or fiber, wireless LANs use electromagnetic spectrum to transmit information. Similar to wireless broadcasting and television, wireless LANs use channels (Airwave) to send messages. Transmission can be achieved by using radio, microwave, or infrared, but the required effective frequency and transmit power level standards are within the limits permitted by government agencies. Advantages of WLAN Technology WLAN refers to the local computer network by wireless channel transmission medium, is the product of computer network and wireless communication technology combined with wireless multiple access channel, as the transmission media, traditional wired LAN function, users can realize anytime, anywhere and free broadband Internet access. WLAN technology enables the computer on the Internet to be mobile, and can quickly and conveniently solve the connectivity problem of the network channel which is difficult to realize in the wired mode. WLAN uses electromagnetic wav