802.16a is a wireless communications
specification for metropolitan area networks (MANs).
It was approved in January 2003 and released in April 2003 as part of a set of standards known as
802.16 or WiMax. The 802.16 standards
complement the older 802.11 (WiFi) family of
specifications.
The 802.16a standard was developed for wireless MANs operating on licensed and unlicensed radio-frequency (RF)
bands between 2 GHz and 11 GHz, at data speeds of up to 75 megabits per second (Mbps), with low latency
and efficient use of spectrum space. Security is enhanced by encryption
features. Forward error correction (FEC) and
space/time coding optimize accuracy under marginal signal conditions. The maximum range can be
extended to approximately 30 miles (48 kilometers) with some sacrifice in throughput. The 802.16a
specification is ideally suited for advanced communications methods such as voice over IP (VoIP) and prioritized
data traffic.
This was last updated in September 2005
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