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Wide-Area Wireless Data

The landscape is further complicated by other technologies trying to leapfrog over cellular networks, many of them based on OFDM (Orthogonal Frequency Division Multiplexing), a radio technology also employed by IEEE 802.11a and IEEE 802.11g. Examples include Flarion's FLASH-OFDM and the high-visibility WiMAX, standardized as IEEE 802.16. Some Wi-Fi enthusiasts even dream of blanketing entire metro areas with 802.11 access points. These upstart ideas don't have support from major operators yet, but they could be a potent disruptive force (see "WiMAX and Beyond,").

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