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Monday, May 7, 2012
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IEEE 802.11 Expanded to Support Faster WLAN Communications
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IEEE today publiced the IEEE 802.11-2012 specifications, which defines the technology for the world's premier wireless local area network (LAN) products.
The new IEEE 802.11-2012 revision has been expanded
by supporting devices and networks that
are faster, more secure, while offering improved Quality
of Service and, improved cellular network hand-off. IEEE
802.11 standards, commonly referred to as "Wi-Fi," already underpin wireless networking applications around the world. The standard?s relevance
continues to expand with the emergence of new
applications, such as the smart grid, which augments the
facility for electricity generation, distribution,
delivery and consumption with a two-way, end-to-end
network for communications and control.
IEEE 802.11 defines one MAC and several PHY
specifications for wireless connectivity for fixed,
portable and mobile stations. IEEE 802.11-2012 is the
fourth revision of the standard to be released since its
initial publication in 1997. In addition to
incorporating various technical updates and
enhancements, IEEE 802.11-2012 consolidates 10
amendments to the base standard that were approved since
IEEE 802.11's last full revision, in 2007. IEEE
802.11n, for example, defined MAC and PHY modifications
to enable much higher throughputs, with a maximum of
600Mb/s; other amendments that have been incorporated
into IEEE 802.11-2012 addressed direct-link setup, "fast
roam," radio resource measurement, operation in the
3650-3700MHz band, vehicular environments, mesh
networking, security, broadcast/multicast and unicast
data delivery, interworking with external networks and
network management.
"The new IEEE 802.11 release is the product of an
evolutionary process that has played out over five years
and drawn on the expertise and efforts of hundreds of
participants worldwide. More than 300 voters from a
sweeping cross-section of global industry contributed to
the new standard, which has roughly doubled in size
since its last published revision," said Bruce Kraemer,
chair of the IEEE 802.11 working group. "Every day,
about two million products that contain IEEE
802.11-based technology for wireless communications are
shipped around the world. Continuous enhancement of the
standard has helped drive technical innovation and
global market growth. And work on the next generation of
IEEE 802.11 already has commenced with a variety of
project goals including extensions that will increase
the data rate by a factor of 10, improve audio/video
delivery, increase range and decrease power
consumption." |
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