from
The Free On-line Dictionary of Computing (8 July 2008)
wireless local area network
LAWN
WiLAN
WLAN
<networking> (WLAN /W-lan/, or "LAWN" /lorn/, sometimes
"WiLAN" /wi-lan/) A communication system that transmits and
receives data using modulated electromagnetic waves,
implemented as an extension to, or as an alternative for, a
{wired} {LAN}. WLANs are typically found within a small
{client} {node}-dense locale (e.g. a campus or office
building), or anywhere a traditional network cannot be
deployed for logistical reasons.
Benefits include user mobility in the coverage area, speed and
simplicity of physical setup, and {scalability}. Being a
military spin-off, WLANs also provide security features such
as {encryption}, {frequency hopping}, and {firewalls}. Some
of these are intrinsic to the {protocol}, making WLANs at
least as secure as wired networks, and usually more so. The
drawbacks are high initial cost (mostly {hardware}), limited
range, possibility of mutual interference, amd the need to
security-enable clients.
The established protocols are covered by IEEE 802.11
(http://standards.ieee.org/getieee802/). Recent developments
include the Bluetooth project and other WPAN, or Personal
Area Network initiatives, accessible through IEEE 802.15
working group (http://grouper.ieee.org/groups/802/15/).
Wireless Lan Association (http://wlana.org/).
Usenet newsgroups: news:comp.dcom.lans.misc,
news:comp.std.wireless.
(2003-09-23)