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WAB–2000
802.11b
The IEEE 802.11b standard ratified by IEEE, establishes a stable standard for compatibility. A user
with an 802.11b product can use any brand of access point with any other brand of client hardware that
is built to the 802.11b standard for basic interconnection. 802.11b devices provide 11 Mbps transmission
(with a fallback to 5.5, 2 and 1 Mbps depending on signal strength) in the 2.4 GHz band.
802.11g
Because 802.11g is backwards-compatible with 802.11b, it is a popular component in LAN
construction. 802.11g broadens 802.11b's data rates to 54 Mbps within the 2.4 GHz band using OFDM
(orthogonal frequency division multiplexing) technology.
802.11a
The IEEE 802.11a standard is an extension to 802.11 that applies to wireless LANs and provides up to 54 Mbps in the 5GHz band.
802.11a uses an orthogonal frequency division multiplexing encoding scheme rather than FHSS or DSSS.
802.11b/g Mixed
802.11b/g combines 802.11b and 802.11g data rates to offer a broader range. In this mode, all
transmissions will be at the highest data rate available.
802.11 Super G and Turbo A
802.11 Super G and 802.11 Turbo A technologies provide double speed and throughput of standard
11G/11A. Higher throughput is necessary for a variety of functions such as: streaming media (video,
DVD, MPEG), VoIP, etc., or for providing multiple users on a single WLAN with optimal speeds
despite network demand. 108 Mbps is the maximum link speed available and the typical MAXIMUM
end-user throughput ranges from approximately 40 Mbps to 60+ Mbps.
NOTE:
Super G's channel bonding feature can significantly degrade the performance of
neighboring 2.4GHz WLANs that don't use Super G, because there isn't enough room in the 2.4GHz
wireless LAN spectrum. Moreover, Super G doesn't check to see if 11b or 11g standards-compliant
devices are in range before using its non-standard techniques.
NOTE:
Due to the frequency regulation in Europe, Turbo A spectrums are reserved and not
available for the general users. Therefore European users may find that all the Turbo A functions
mentioned in this manual are not available.
Chapter 1: Introduction
3
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