|[February 25, 2014]
Amendment in IEEE 802.11af™ Enables Geolocation Database Access to RF Spectrum White Spaces
PISCATAWAY, N.J. --(Business Wire)--
IEEE (News - Alert), the world's largest professional organization dedicated to
advancing technology for humanity, today announced publication of IEEE
802.11afTM-2013, which is intended to allow IEEE 802.11™
wireless local area networks (WLANs) to be used in "white spaces" of the
radio frequency (RF) spectrum.
The added features of IEEE 802.11af1 are designed to provide
geolocation database access to previously unavailable, unused or
underused frequencies. The amendment to IEEE 802.11 establishes a global
standard allowing users worldwide to make use of unused or underused
spectrum, based on location and time of day.
"As more spectrum becomes necessary, new and better approaches to
sharing with licensed spectrum users becomes a necessity," said Bruce
Kraemer, chair of the IEEE 802.11 working group. "IEEE 802.11af
addresses this need by providing support for operation in unused TV
channels in the VHF and UHF bands, and the standard's arrival is timely
given that it coincides with the offer of unlicensed access to
white-space spectrum in the United States, Canada, Japan and Europe.
IEEE 802.11af provides a standard that delivers a mechanism for adding
white-space services to IEEE 802.11 WLAN devices wherever they can be
made available and builds on the technological advances of the previously
announced new IEEE 802.11ac™2 standard."
IEEE 802.11af operates in 6, 7 and 8 MHz channels, allowing backward
compatibility with existing international TV band allocations. Under the
amended standard, operation may be configured for one to four channels,
either contiguously or in two non-contiguous blocks, providing a means
for devices to aggregate sufficient spectrum in a fragmented TV band
spectrum to provide high data rates. The IEEE 802.11af standards
document is available for purchase at the IEEE
In addition to the IEEE 802.11af WLAN standard, the previously published
IEEE 802.22™3 standard provides reliable, secure high-speed
broadband regional area access systems to under- and unserved
communities around the world. For more information on IEEE 802.22,
please visit http://standards.ieee.org/findstds/standard/802.22-2011.html.
The IEEE 802.22 standard is available to be printed on demand at the IEEE
Standards Store, or it can be downloaded for no charge through the IEEE
Participants in the IEEE 802.11 working group include more than 500
individuals from equipment and silicon suppliers, service providers,
systems integrators, consultant organizations and academic institutions
from more than 20 countries.
IEEE 802.114 defines the technology for the world's premier
wireless LAN (WLAN) products. IEEE 802.11-based products are often
branded as "Wi-Fi®" in the market. IEEE 802.11 standards
underpin wireless networking applications around the world, such as
wireless access to the Internet from offices, homes, airports, hotels,
restaurants, trains and aircraft. IEEE 802.11's relevance continues to
expand with the emergence of new applications, such as the smart grid,
wireless docking and the "Internet of Things." For more information
about the IEEE 802.11 working group, visit http://standards.ieee.org/develop/wg/WG802.11.html.
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1 IEEE 802.11af™-2013 "Standard for Information
Technology - Telecommunications and Information Exchange Between
Systems - Local and Metropolitan Area Networks - Specific
Requirements - Part 11: Wireless LAN Medium Access Control (MAC) and
Physical Layer (PHY) Specifications Amendment 5: TV White Spaces
2 IEEE 802.11ac™-2013 "Standard for Information
technology-- Telecommunications and information exchange between
systems-Local and metropolitan area networks-- Specific
requirements--Part 11: Wireless LAN Medium Access Control (MAC) and
Physical Layer (PHY) Specifications--Amendment 4: Enhancements for
Very High Throughput for Operation in Bands below 6 GHz"
3 IEEE 802.22™-2011 "Standard for Information
technology-- Local and metropolitan area networks-- Specific
requirements-- Part 22: Cognitive Wireless RAN Medium Access Control
(MAC) and Physical Layer (PHY) specifications: Policies and
procedures for operation in the TV Bands"
4 IEEE 802.11™-2012 "Standard for Information
technology--Telecommunications and information exchange between
systems Local and metropolitan area networks--Specific requirements
Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer