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Wireless metropolitan network offers broadband network access via exterior antennas. Antennas communicate with base stations which are connected to core network. This is a good alternative to fixed line networks. It is fast to build and not so expensive.

802.16 is a Institute of Electrical and Electronics Engineering ( IEEE) standard which specifies the wirelessMAN Air Interface for wireless metropolitan area networks. Standard was completed in October 2001 and published on 8 April 2002.

802.16 is a “ last mile” technique which uses bandwidth between 10 – 66 GHz. Because of the short wavelength, line of sight is required. Standard supports point-to-multipoint topology, frequency-division duplex (FDD) and time-division duplex (TDD) in a consistent framework and full quality of service (QoS). With QoS it is possible to send sound, video etc. Standard specifies 120 Mbit/s on each 25 MHz channel.

802.16a followed 802.16 standard. It was completed in November 2002 and published on 1 April 2003. It uses bandwidth between 2 - 11 Ghz and support mesh instead of only point-to-multipoint network architecture. Standard doesn't need line of sight. With mesh support subscriber stations communicate with other subscribers rather than directly with the base station.

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Topics: Wireless MAN, Wireless Valley, Wireless Telegraphy, Wireless LAN...

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Wireless Application Protocol	Wireless mobility management	Wireless Markup Language
Wireless community network	Wireless sniffer	Wireless
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