Bluetooth will use a 2.4GHz radio frequency, an unlicensed band which is already used by wireless LANs and microwave ovens - although Siberg denied there will be significant interference problems. The companies have unveiled a technology - called...
Also, the 2.4 GHz ISM band is already quite overcrowded with traffic from microwave ovens and Bluetooth devices among others. Subject to regulatory approval for commercial exploitation of the UK's licence-exempt ISM spectrum band.
There may not be an immediate need for public WLANs running 802.11a, some experts have claimed, as the maximum surfing speeds available will be restricted by the speed of the connection from the hot spot to the Internet.
The 2.4 GHz area of the spectrum is also fairly crowded, with mobile phones, Bluetooth devices and others possible sources of interference which can be as mundane as microwave ovens, though this user has been running a domestic 802.11b WLAN for...
Then there is the potential problem of frequency interference with Bluetooth. Over recent years, phones have become dual band, tri-band and even quad-band to cover an ever larger frequency range of countries with GSM networks.
Essentially this means that all future high-speed Bluetooth devices will use UWB radio frequency technology. This increases the signal's range by reducing interference. The term 'ultra-wide band' was first coined by the US Department of Defence in...