Wireless technology Wi-Fi and Bluetooth infrared

According to the current wireless technology, wireless office networks can be established through infrared, Bluetooth, and 802.11b/a/g wireless technologies. The data transmission rate of infrared technology is only 115.2 Kbps, and the transmission distance is generally only 1 meter. The data transmission rate of Bluetooth technology is 1 Mbps, and the communication distance is about 10 meters; the data transmission rate of 802.11b/a/g reaches 11 Mbps, and the effective distance is up to 100 meters. It is also characteristic of "mobile office, it allows users to perform network operations that consume a large amount of bandwidth, basically like on a wired LAN. Therefore, 802.11b/a/g is suitable for enterprise wireless networks, especially laptops, built in the office ).

From the perspective of cost, 802.11b/a/g is also relatively cheap, because many laptops are generally fast-relaxation platforms, and they are integrated with 802.11b/a/g wireless NICs, you only need to buy a Wireless AP for a wireless LAN access device) to build a wireless network. Bluetooth provides point-to-point and point-to-point wireless connections based on network concepts. In any valid communication range, all devices are equal. Of course, from another perspective, Bluetooth is more suitable for setting up a wireless LAN for families.

1. Concepts and basic knowledge of Wi-Fi networks
2. Political disputes and confusions