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Appendix D Glossary
¢ w An internetworking device that seamlessly connects wired and wireless
Access Point
networks.
Ad-Hoc
¢ w An Ad-Hoc wireless LAN is a group of computers each with WireFree adapters,
connected as an independent wireless LAN.
Backbone
¢ w The core infrastructure of a network.
transports information from one central location to another central location where it is unloaded onto
a local system.
Base Station
¢ w In mobile telecommunications, a base station is the central radio
transmitter/receiver that maintains communications with the mobile radio telephone sets within its
range.
In cellular and personal communications applications, each cell or microcell has its own
base station; each base station in turn is interconnected with other cells' bases.
Bridge
¢ w An internetworking function that incorporates the lowest 2 layers of the OSI
network protocol model.
BSS
¢ w BSS stands for "Basic Service Set". It is an Access Point and all the WireFree PCs that
associated with it.
ESS
¢ w ESS stands for "Extended Service Set".
become
Extended Service Set.
ESS.
Ethernet
¢ w A popular local area data communications network, originally developed by
Xerox Corp., that accepts transmission from computers and terminals.
Mbps baseband transmission rate, using a shielded coaxial cable or over shielded twisted pair
telephone wire.
Infrastructure
¢ w An integrated wireless and wired LAN is called an Infrastructure
configuration.
PCMCIA
¢ w The Personal Computer Memory Card International Association (PCMCIA),
develops standards for PC cards, formerly known as PCMCIA cards.
three types, and are of about the same length and width as credit cards.
width of the cards range in thickness from 3.3 mm (Type I) to 5.0 mm (Type II) to 10.5 mm (Type
III).
These cards can be used for various functions, including memory storage, landline modems
and wireless modems.
Roaming
- A WireFree mobile user moves around an ESS and enjoys a continuous connection to
26
WireFree mobile users can roam between different BSSs in an
The portion of the network that
More than one BSS is configured to
Ethernet operates on a 10
These cards are available in
However, the different
WireFree Wireless LAN
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