802.11 HISTORY

The aboriginal 802.11 accepted was accustomed in 1997 and accustomed manual speeds that topped out at 2 Mbps. This adaptation of the accepted accustomed two altered methods for encoding advice at a concrete level, Frequency Hopping Spread Spectrum (FHSS) and Direct Sequence Spread Spectrum (DSSS). These two altered encoding schemes are incompatible, however, and the best led to a lot of abashing in the marketplace.

In 1999, the IEEE appear 802.11b, an alteration to the aboriginal 802.11 standard. The 802.11b accepted acclimated DSSS and added the best manual acceleration to a abundant faster 11 Mbps. Additionally appear in 1999 was 802.11a, which accustomed 802.11 to run alfresco of the awash 2.4-GHz industrial, scientific, and medical (ISM) bandage and in the 5-GHz Unlicensed National Advice Infrastructure (UNII) band. Due to added amount and bargain arresting propagation, 802.11a was never broadly adopted by consumers admitting the added acceleration it offered (54 Mbps).