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Spread Spectrum - Spread Spectrum technology is a wideband radio frequency
technique developed by the military for use in reliable, secure, mission-critical
communications systems. It is designed to trade off bandwidth efficiency for reliability,
integrity, and security. In other words, more bandwidth is consumed than in the case of
narrowband transmission, but the trade off produces a signal that is, in effect, louder and
thus easier to detect, provided that the receiver knows the parameters of the
spread-spectrum signal being broadcast. If a receiver is not tuned to the right frequency,
a spread-spectrum signal looks like background noise. There are two main alternatives,
Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum
(FHSS).
SSID - A Service Set Identification is a thirty-two character (maximum)
alphanumeric key identifying a wireless local area network. For the wireless
devices in a network to communicate with each other, all devices must be
configured with the same SSID. This is typically the configuration parameter
for a wireless PC card. It corresponds to the ESSID in the wireless Access
Point and to the wireless network name. See also Wireless Network Name
and ESSID.
WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a
64-bit or 128-bit or 152-bit shared key algorithm, as described in the IEEE
802.11 standard.
Wi-Fi - A trade name for the 802.11b wireless networking standard, given by
the Wireless Ethernet Compatibility Alliance (WECA, see http://www.wi-fi.net),
an industry standards group promoting interoperability among 802.11b
devices.
WLAN (Wireless Local Area Network) - A group of computers and associated
devices communicate with each other wirelessly, which network serving users
are limited in a local area.
WPA (Wi-Fi Protected Access) - A wireless security protocol use TKIP (Temporal Key
Integrity Protocol) encryption, which can be used in conjunction with a RADIUS server.
Appendix C. Contact information
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