Bluetooth cuts the cord

There has been a lot of talk about Bluetooth, but most of it has been just that: talk. Anticipation of the wireless standard taking hold is old news. But the waiting is finally over, and the first ready-for-prime-time products are trickling into the market. By year's end, a flood of Bluetooth-enabled, enterprise-worthy devices is expected.

Bluetooth uses radio frequencies to establish automatic, transparent wireless connections among a wide range of computing and telecommunications devices (including laptop and handheld computers, mobile phones, headsets for wireless phones, and printers) so that users can connect to standalone devices, the corporate network, or the Internet. This short-range radio frequency (RF) standard connects devices that are within 30 feet of each other.

The Bluetooth standard uses frequency-hopping, spread-spectrum communication in the 2.4GHz industrial, scientific, and medical (ISM) band, in which unlicensed devices are permitted to communicate in most countries. A variety of other devices also use the ISM band--including baby monitors, garage-door openers, and cordless phones, as well as 802.11b wireless networking equipment. Making sure that Bluetooth and these other devices don't interfere with one another has been a crucial part of the design process.

Contents

     1.  Intro
     2.  Applications and products
     3.  Competing wireless standards
     4.  The interoperability question
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