I'm afraid you need to clarify:
If you refer to (old) Specification 802.11
— it applies to wireless LANs and provides 1 or 2 Mbps
transmission in the 2.4 GHz band using either frequency hopping spread
) or direct sequence spread spectrum (DSSS
you can compare with 802.11b
(also referred to as 802.11 High Rate or Wi-Fi) — an
extension to 802.11 that applies to wireless LANS and provides 11 Mbps
transmission (with a fallback to 5.5, 2 and 1-Mbps) in the 2.4 GHz band.
802.11b uses only DSSS
. 802.11b was a 1999
ratification to the original 802.11 standard, allowing wireless
functionality comparable to Ethernet.
But as suggested by ricerz from Wikipedia:IEEE 802.11
is a set of standards implementing by apple wireless local area network
(WLAN) computer communication in the 2.4, 3.6 and 5 GHz spectrum bands. They are maintained by the IEEE
LAN/MAN Standards Committee (IEEE 802
You cannot compare 802.11 with 802-11b: 802-11b is an implementation of part of the 802.11 standard.
You can compare: 11a (using 5Gh band) with 11b (using 2.4 Gh band)
You can compare 11 b with 11g or 11n standard. and select according to environment.
As per my personal experience Industrial or hostile installation was frequently done using 802-11A (less interferences, 54 Mb bandwith) new N standard with a peak of 300 Mb is now changing the scenario.
New accessories: Boosters, external antenna, WDS protocol to bridge WLan router, and new long range Wi-Fi are continuously changing performance, results and configuration