iBall Baton iB-WRC300N User Manual page 69

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FHSS (Frequency Hopping Spread Spectrum) - FHSS continuously
changes (hops) the carrier frequency of a conventional carrier several
times per second according to a pseudo-random set of channels. Because
a fixed frequency is not used, and only the transmitter and receiver know
the hop patterns, interception of FHSS is extremely difficult.

Infrastructure Network - An infrastructure network is a group of
computers or other devices, each with a Wireless N USB Adapter,
connected as an 802.11 wireless LAN. In infrastructure mode, the wireless
devices communicate with each other and to a wired network by first going
through an access point. An infrastructure wireless network connected to a
wired network is referred to as a Basic Service Set (BSS). A set of two or
more BSS in a single network is referred to as an Extended Service Set
(ESS). Infrastructure mode is useful at a corporation scale, or when it is
necessary to connect the wired and wireless networks.

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.
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