It operates in the 5-GHz range at a 54-Mbit/s data rate and uses orthogonal-frequency-division-multiplexing (OFDM) modulation, which is a faster data-transmission scheme than CCK. It uses the complementary-code-keying (CCK) modulation scheme.Ĩ02.11a: Also known as Wi-Fi, 802.11a has yet to be widely accepted in the industry. It operates at 2.4 GHz, so it shares spectrum with cordless phones, Bluetooth products, and many other unlicensed devices. This version transfers data at 11 Mbits/s at distances of up to 300 ft. 802.11b: Known as Wi-Fi, 802.11b is currently the leading market standard for wireless local-area networking.
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