A wireless local area network (WLAN for short) is a network covering an area equivalent to that of a business's local network, about a hundred metres in range. It allows terminals within the area of coverage to be linked to one another. There are several different technologies for this:
hiperLAN2 (HIgh Performance Radio LAN 2.0) is a European standard developed by ETSI (European Telecommunications Standards Institute). HiperLAN 2 lets users reach speeds of up to 54 Mbps over an area of about a hundred metres, and broadcasts in the frequency range between 5150 and 5300 MHz.