Atlantis NetFly UP WN Mode D'emploi page 78

transmitting on air?
What is WEP?
What is infrastructure
mode?
What is roaming?
What is ISM band?
What is the
802.11g standard?
What is the
802.11n standard?
Spectrum technology, it has the inherent security
feature of scrambling. On the software side, WLAN
offers the encryption function (WEP) to enhance
security and access control.
WEP is Wired Equivalent Privacy, a data privacy
mechanism based on a 64-bit or 128-bit shared key
algorithm, as described in the IEEE 802.11 standard.
When a wireless network is set to infrastructure
mode, the wireless network is configured to
communicate with a wired network through a
wireless access point.
Roaming is the ability of a portable computer user to
communicate continuously while moving freely
throughout an area greater than that covered by a
single access point. Before using the roaming
function, the workstation must make sure that it is
the same channel number with the access point of
dedicated coverage area.
The FCC and their counterparts outside of the U.S.
have set aside bandwidth for unlicensed use in the
ISM (Industrial, Scientific and Medical) band.
Spectrum in the vicinity of 2.4 GHz, in particular, is
being made available worldwide. This presents a
truly revolutionary opportunity to place convenient
high-speed wireless capabilities in the hands of
users around the globe.
IEEE Approved in June, 2003 as an
wireless local area networks (WLANs), 802.11g
offers wireless transmission over relatively short
distances at up to 54 megabits per second (Mbps)
compared with the 11 megabits per second of the
802.11b
operates in the 2.4
compatible with it.
IEEE Is an IEEE
(WLANs), 802.11n offers wireless transmission over
relatively short distances at up to 600
(more bandwith 40Mhz instead of 20Mhz and more
flux) per second (Mbps) compared with the 54/11
(Wi-Fi) standard. Like 802.11b, 802.11g
GHz
standard for wireless local area networks
78
IEEE standard for
range and is thus
megabits