Alpha WLAN and WI-FI Analysis

Alpha WLAN and WI-FI analysis, WLAN so-called WLAN is short for Wireless Local Area Network, the use of RF technology, replacing the old pair of copper wire consisting of Local Network, wireless communication technology is used to interconnect computers and other devices to form a network system that can communicate with each other and share resources. The essence of Wireless LAN is that it no longer uses communication cables to connect computers with networks, instead, the network is connected wirelessly to make the network construction and terminal mobility more flexible. WLAN uses the ISM radio broadcast band for communication. The 802.11a standard of WLAN uses the 5 GHz band and supports a maximum speed of 54 Mbps, while the 802.11b and 802.11g standard use the 2.4 GHz band, the maximum speed is 11 Mbps and 54 Mbps respectively.
2. WI-FI www.2cto.com Wi-Fi is WirelessFidelity, wireless fidelity technology, like bluetooth technology, is a short-distance wireless technology used in the office and home, using a frequency band near GHz, currently, no licensed wireless frequency band is available. Currently, two standards are available: IEEE802.11a and IEEE802.11b. The Wi-Fi-certified product complies with IEEE 802.11b wireless network specifications. It is currently the most widely used WLAN standard and adopts a 2.4 GHz band. The IEEE 802.11b wireless network specification is a variant of the IEEE 802.11 Network specification. The maximum bandwidth is 11 Mbps. when the signal is weak or there is interference, the bandwidth can be adjusted to 5.5 Mbps, 2 Mbps, and 1 Mbps. The bandwidth is automatically adjusted to effectively ensure the stability and reliability of the network.
Although Wi-Fi is worse than Bluetooth in terms of data security, it is superior in terms of radio wave coverage. The Wi-Fi coverage is about 90 meters. In general, WI-FI is a standard of WLAN, WLAN maximum can reach 5 KM, not WIFI can ratio.