IEEE 802.11 is a Wireless Local are a Network standard capable of
providing data rates of 1 and 2 Mbps. The standard specifies Medium
Access Control (MAC) and Physical (PHY) layer characteristics for data
transmission in the unlicensed ISM band (2.4 GHz).
The IEEE in late 1999 released the 802.11b WLAN standard for a higher
speed physical (PHY) layer in the 2.4 GHz band to replace that
specified in the 802.11 standard. This new PHY layer can support data
speeds of up to 11Mbps, although the actual experienced data rate may
be around half of this speed. The Wireless Ethernet Compatibility
Alliance (WECA) certifies all products that are 802.11b compliant as Wi-Fi.Similarly, there exists different 802.11x standards and also 802.15
and 802.16 has come up.
802.11x wireless embedded applications:
For developing applications on
802.11x, one needs to have a thorough knowledge of 802.11x standard.
Applications like authentication server, chat system, Embedded Web
Server, Encryption applications, etc can be built on 82.11x boards.