SolveYourProblem
Article Series: Bluetooth
Understanding Bluetooth Wireless Communication
What
Should I Know About Bluetooth?
First, you may be wondering what Bluetooth
technology is exactly. Bluetooth is a wireless technology
that is short-range communications. Bluetooth technology is intended
to replace any cables that are used in the portable and/or
fixed electronic devices. Bluetooth also has a high standard
of maintaining security in their products. The major benefits
of Bluetooth wireless technology are the combination of their
low power and low cost. Based on the Bluetooth wireless system
it is possible for a wide variety of devices to connect and
communicate with each other.
Bluetooth technology is accepted
and enabled almost everywhere around the globe. Technology containing Bluetooth can connect
and communicate through short-range wireless transmissions
to any other Bluetooth enabled electronic nearby. The short-range
networks are known as piconets. Bluetooth electronics can communicate
with up to seven other Bluetooth devices simultaneously. There
is no need to be fluent in technology connections since Bluetooth
automatically connects with other Bluetooth devices when they
enter and leave the proximity of the device.
Another added benefit of Bluetooth devices is the fact that
they can handle both data and voice transmissions at
the same time. This allows Bluetooth users to do a variety of tasks
at the same time including a hands-free headset for your phone
calls, print and fax capabilities. In addition, you can always
synchronize almost all of your electronics using Bluetooth
technology including your PDA, laptop and cell phone.
Bluetooth technologies are able
to operate using an unlicensed industrial, scientific and
medical bandwidth so it will not
interfere or be interrupted by other wireless technologies.
In addition, this bandwidth is available in almost every country.
This is a very important aspect to the Bluetooth technology.
It allows those who use Bluetooth to be sure their service
will not be interrupted. While this may seem trivial to normal
consumers, hospitals and doctors might think otherwise.
As more Bluetooth devices become available there is the adaptive
frequency hopping including in Bluetooth devices that helps
reduce any interference between Bluetooth technologies sharing
the same bandwidth. This technology finds other devices on
the same bandwidth and determines the frequency they are using
and then avoids using the same frequency so there is less interference.
Through this adaptive hopping, you get more efficient transmissions
and better performance from your wireless device. There are
close to eighty different frequencies the device can switch
between to offer the best transmission.
There are various
operating ranges for Bluetooth technology
devices based on the class of the electronics. Class Three
radios have a typical operating range of one meter to three
feet. Class Two radios are usually found in mobile devices
and typically have an operating range of ten meters or thirty
feet. Class One radios is typically found in industrial electronics
only and has an operating range of one hundred meters or three
hundred feet.
Bluetooth technology is also designed to have a very
low power source and use. The technology enhances this possibility by
enabling the electronics to automatically power down when not
in use.
During a normal operation of a Bluetooth device, a radio channel
is shared by a group of Bluetooth devices that share the same
clock and frequency-hopping program. There is one device in
the group that becomes the master and provides the synchronization
for all the other devices. The other devices become known as
the slaves and synchronize to the master device to form a small-range
network known as a piconet. This is how a typical Bluetooth
technology interface works.
To help data transmissions Bluetooth technology uses sub-divided
time units called slots within the physical radio channel.
Bluetooth devices transmit data in packets through these slots.
If a data packet is large then several of these time slots
can be used at once to assist in the transmission of the information.
In between the transmission of these data packets or the reception
of these data packets, the Bluetooth device hops frequencies
to prevent the electronic device from being interrupted by
another Bluetooth device in short-range communication with
your electronic device.
Despite this multi-layered transfer and reception communication
of the Bluetooth device, it still maintains a high level of
security. The Bluetooth electronics have built in systems to
keep your device and personal information safe from other users
when they are in short-range contact with your device. Therefore,
you can use your Bluetooth device in confidence and know you
are safe from anyone trying to steal your information.
# # # # #
SolveYourProblem.com : 2007
> Home > Bluetooth Articles:
Main Page |
