ABSTRACT
During the recent years, wireless networking technologies have achieved a
significant role as telecommunications media because of their flexibility and
convenience in numerous usage scenarios. Of the wireless technologies,
Bluetooth (Bluetooth Special Interest Group, Bellevue, Washington, USA)
[1] has become the default choice for low-cost, low-power, short-range, and
personal area communications. It is specified by Bluetooth Special Interest
Group (SIG) [2], an industry consortium established for developing and
advancing the wireless technology. Originally, Bluetooth was only intended
as a simple serial cable replacement for electronic devices. However, pres-
ently the technology supports various more advanced functionalities, such as
ad hoc networking and access point operation for Internet connections. The
ongoing development extends Bluetooth with new features, including support
for quality of service, higher data rates, multicasting, and lower power
consumption. Currently, Bluetooth can be found in mobile phones, personal
digital assistants (PDAs), laptops, printers, digital cameras, headsets, portable
payment terminals (e.g., for facilitating credit card payments in restaurants),
cars, and medical equipments. The application area expands as new products
with the Bluetooth capability are constantly introduced [3].
