 802.11g
The 802.11 task force is still developing 802.11g, and it is expected to be ratified as a standard by mid-2003. 802.11g offers the throughput of 802.11a with the backward compatibility of 802.11b. 802.11g will operate in the 2.4 GHz band but it will deliver data rates from 6 Mbps to 54 Mbps. Like 802.11b, it will have up to three non-overlapping channels. 802.11g uses orthogonal frequency-division multiplexing (OFDM) modulation as does 802.11a, but, for backward compatibility with 11b, it also supports complementary code keying (CCK) modulation and, as an option for faster link rates, allows packet binary convolutional coding (PBCC) modulation.
Its "backward compatibility" with 802.11b means that when a mobile 802.11b device joins an 802.11g access point, all connections on that access point slow down to 802.11b speeds.
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