W-LAN technology provides wireless users with many services. 802.11a (as the American standard is called) will arrive upon the scene. 802.11a is a new, high-speed standard for Wireless LANs that operates in the unlicensed 5 GHz band.
54 Mbps is the theoretical speed of 802.11a
Practical speed depends on installations, but in normal cases somewhere between 10-15 Mbps