Glossary - Proxim RangeLAN2 7500 User Manual

E. Glossary
Access Point - An internetworking device that seamlessly con-
nects wired and wireless networks together.
Bandwidth — The size (In Hertz) of the frequency range that a
signal transmission occupies. Typical narrow band signals
occupy a 2 5KHz bandwidth. The RangeLAN2 signal occupies a
1 MHz bandwidth.
BOOTP (Bootstrap Protocol) — A protocol used to assign IP
addresses.
Channel — In RangeLAN2 networks, the channel refers to the
frequency hopping sequence the card follows.
CSMA/CA — (Carrier Sense Multiple Access/Collision Avoid-
ance) — CSMA is a protocol in which each node senses whether
or not a channel is in use before attempting to transmit informa-
tion. CA is an optimization by which channel time is reserved to
avoid collisions.
Frequency Hopping — A spread spectrum technique by which
the band is divided into a number of channels and the transmis-
sions hop from channel to channel in a pre-specified sequence.
Interference — A situation that occurs when an unwanted RF
signal occupies the same frequency band as a desired signal.
IP Address (Internet protocol address) — A 32-bit address
assigned to TCP/IP hosts.
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