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Chapter 3. How Wireless Works > Other Wireless Standards

Other Wireless Standards

Although 802.11b is the most common wireless networking standard in the U. S. and elsewhere, three other specifications are worth a brief look, although we don't cover them to the same extent throughout the rest of the book. These three specifications are a higher-speed but similar version of 802.11b, called 802.11a; a short-range, battery-friendly cable replacement named Bluetooth; and HomeRF, a consumer-oriented way to tie together cordless phones, multimedia devices, cable TV control boxes, and the Internet.

802.11a

Networking equipment adhering to the IEEE 802.11a standard started appearing in the middle of 2002, and you may naturally ask why the 802.11b standard came before the 802.11a standard. The IEEE actually approved the 802.11a before 802.11b, but the technology necessary to implement 802.11a and the portion of the spectrum in which it was to operate weren't yet available.


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