Carrier Sensing mechanism of controlling medium access because two or more
radios cannot sense the carrier from each other.
IEEE 802.11
The IEEE 802.xx is a set of specifications for LANs from the
Institute of Electrical and Electronic Engineers (IEEE). Most wired networks
conform to 802.3, the specification for CSMA/CD-based Ethernet networks or
802.5, the specification for token ring networks. 802.11 defines the standard for
wireless LANs encompassing three incompatible (non-interoperable)
technologies: Frequency Hopping Spread Spectrum (FHSS), Direct Sequence
Spread Spectrum (DSSS), and Infrared. IEEE standards ensure interoperability
between systems of the same type.
Infrastructure Network
A wireless network centered about an Access Point. In
this environment, the Access Point not only provides communication with the
wired network but also mediates wireless network traffic in the immediate
neighborhood.
IP
Internet Protocol
. The standard protocol within TCP/IP that defines the basic
unit of information passed across an Internet connection by breaking down data
messages into packets, routing and transporting the packets over network
connections, then reassembling the packets at their destination. IP corresponds
to the network layer in the ISO/OSI model.
LAN
Local Area Network
. A communication network that serves users within a
defined geographical area. The benefits include the sharing of Internet access,
files, and equipment, such as printers and storage devices. Special network
cabling (10BaseT) is often used to connect the PCs together.
PS Mode
Power Save
Mode. This mode is recommended for devices where
power consumption is a major concern, such as battery-powered devices.
Radio Frequency
RF
, Terms: GHz, MHz, Hz —The international unit for
measuring frequency is Hertz (Hz), equivalent to the older unit of cycles per
second. One megahertz (MHz) is one Million-Hertz. One gigahertz (GHz) is one
Billion-Hertz. The standard U.S. electrical power frequency is 60 Hz, the
AM broadcast radio frequency band is 0.55–1.6 MHz, the FM broadcast radio
frequency band is 88–108 MHz, and wireless 802.11 LANs operate at 2.4GHz.
SSID
Service Set ID
. A group name shared by every member of a wireless
network.
Station
The Station is the component that connects a host computer or device
to the wireless medium. It may be referred to as the Wireless Network Adapter or
the Wireless Network Interface Card.
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WEP
Wired Equivalent Privacy
. The optional cryptographic confidentiality
algorithm specified by 802.11 used to provide data confidentiality that is
