World Interoperability for Microwave Access is a family of technologies based on the IEEE 802.16 wireless Metropolitan Area Network (MAN) standard, designed as an alternative to cable and DSL (Digital Subscriber Line).
WiMAX has been designed to provide fixed, nomadic, portable and eventually mobile wireless connectivity similar to technologies such as UMTS. Many network operators are closely examining WiMAX as a technology for “last mile” connectivity.
IEEE 802.16(a) uses Orthogonal Frequency Division Multiple Access (OFDMA) using spectrum between 2 and 66 GHz at distances up to 50km without the need for direct line of sight. WiMAX improves upon many of the limitations of the Wi-Fi standard by providing increased bandwidth, stronger encryption and limited mobility.