[E-mil]

Dakle da zaključimo (kao što je to već neko spomenuo) 802.11b u teoriji max 11 Mbit/s a u praksi 5,9 Mbit/s.

802.11b

The IEEE 802.11b amendment to the original standard was ratified in 1999. 802.11b has a maximum raw data rate of 11 Mbit/s and uses the same Ethernet based signalling protocol. Due to the CSMA/CA protocol overheads, in practice the maximum 802.11b throughput that an application can achieve is about 5.9 Mbit/s over TCP and 7.1 Mb/s over UDP.
IEEE 802.11b also operates in the unprotected 2.4 GHz frequency band with an 83.5Mhz wide channel.
802.11b products appeared on the market very quickly, since 802.11b is a direct extension of the DSSS modulation technique defined in the original standard. Hence, chipsets and products were easily upgraded to support the 802.11b enhancements. The dramatic increase in throughput of 802.11b (compared to the legacy standard) along with substantial price reductions lead to the rapid acceptance of 802.11b as the definitive wireless LAN technology.

802.11b network cards can operate at 11 Mb/s, but will scale back to 5.5 Mb/s, 2 Mb/s, then 1 Mbps depending on signal quality. Since the lower data rates use less complex and more redundant methods of encoding the data, they are less susceptible to corruption due to interference and signal attenuation. Extensions have been made to the 802.11b protocol (e.g., channel bonding and burst transmission techniques) in order to increase speeds to 22, 33, and 44 Mb/s, but these extensions are proprietary and have not been endorsed by the IEEE. Many companies call enhanced versions "802.11b+". These extensions have been largely obviated by the development of 802.11g.
The first widespread commercial use of the 802.11b standard for networking was made by Apple Computer under the trademark AirPort.