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IEEE launches 802.22 WRAN standard

Posted: 29 Jul 2011 ?? ?Print Version ?Bookmark and Share

Keywords:broadband? wireless? communication?

The Institute of Electrical and Electronics Engineers (IEEE) has announced the release of its 802.22 standard for Wireless Regional Area Networks (WRANs).

The WRAN standard covers broadband wireless access at up to 22Mbit/s per channel over distances of up to 100km from a transmitter. This is done without interfering with terrestrial television broadcasts that use the same part of the spectrum.

The standard is very similar to the Weightless standard that is currently being developed by Neul Ltd. Neul's standard is intended to provide a framework for "white space" reuse of UHF and VHP spectrum.

IEEE releases 802.3bfTM Ethernet support
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However, while Neul's Weightless standard is intended to open up access for relatively small data payloads that are part of an internet-of-things, IEEE 802.22 is trying to provide secure high-speed broadband communications that are not served by other forms of wired and wireless communications.

Under 802.22 each WRAN will deliver up to 22Mbit/s per channel without interfering with reception of existing TV broadcast stations, using the so-called white spaces between the occupied TV channels. The technology is useful for serving less densely populated areas, such as rural areas, and developing countries, said IEEE.

In terms of channel specifications, 802.22 covers the required cognitive radio capabilities including dynamic spectrum access, incumbent database access, accurate geo-location techniques, spectrum sensing, spectrum etiquette, and coexistence for optimal use of the available spectrum.

- Peter Clarke
??EE Times





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