Bluetooth Overview
Bluetooth technology is a
type of the wireless technology that eliminates the need for
the number of inconvenient cables and devices that are used
to connect the computers, mobile phones, digital cameras,
handheld devices and new digital appliances. Bluetooth
enables the users to connect to a wide variety of
telecommunication and computing devices easily, without
cables.
It makes rapid ad hoc connections, automatic unconscious
connections between two or more digital devices. Bluetooth
provides the opportunity of using the mobile data in
different applications. Bluetooth makes wireless
communication between the two devices in a localized area of
a room of office or home very easily. Bluetooth technology
uses radio-based links and all the connections between the
devices and invisible and instantaneous.
By Bluetooth technology your laptop can send print request
to a printer in your next room. Bluetooth is actually a
standard for wireless communication between the devices in a
relatively small area and it is therefore works fine in the
personal area network (pan) using radio frequency.
Any two devices that follow the Bluetooth standard can
communicate with each other. A number of the Bluetooth
devices like digital camera, mobile phone and handheld pc
can form a network. You can send emails to your mobile
phones from your laptop without any physical connect between
your laptop and your mobile phones.
Features of Bluetooth technology
• Bluetooth technology uses radio waves for communication in
2.4 GHz
• It supports multi point communication not just point to
point.
• Bluetooth works in a small area of 10-15 meters.
• Bluetooth offers speed of 1-2 mbps.
• Bluetooth chipsets are less expensive though more
expensive than IrDA.
How Bluetooth technology works
Bluetooth is a high speed wireless link technology that uses
the radio waves. It is designed to connect the mobile
phones, laptops, hand held devices and portable equipments
with almost no work by the end users. Unlike infrared
Bluetooth does not require line of sight between the
connecting units. Bluetooth technology is a modified form of
the current wireless LAN technology and it’s more acceptable
for its relative small size and low cost.
The current circuits are contained on a circuit board of 0.9
cm square and a much smaller single chip version is in
development and soon it will be in use. The cost of the
Bluetooth device is expected to fall rapidly. Bluetooth chip
has to be equipped in many devices. In Bluetooth technology,
small and inexpensive transceivers have been placed in the
digital devices. The radio waves operate at 2.45 GHZ band on
the Bluetooth devices. Bluetooth supports the data speed up
to 721 Kbps and 3 voice channels. The Bluetooth chip can
either be built into the devices or it can be uses as an
adapter. In computer it can be used with the USB port. Each
Bluetooth device has a 48 bit address from the IEEE 802
standards and the Bluetooth connections can be either point
to point or multi point. Bluetooth range is 10 meter but it
can be extended up to 100 meters by increasing the power.
Bluetooth devices are protected from the external
interference because they change their frequency up to 1600
times in a second. Bluetooth radio technology provides the
bridge between the existing data network. Bluetooth
guarantees security at the bit level and the authentication
is controlled by the end user by using 128 bit key. An
important face of the Bluetooth technology is that it
instantly forms a network when two or more devices come
closer in the range of each other.
Bluetooth technology benefits
Bluetooth technology is a convenient choice of communication
in a wire free, short range environment. Bluetooth is a
globally available standard for connecting the devices like
mobile phones, digital cameras, laptops, mp3 players, cars,
stereo headsets etc. Bluetooth enable devices do not need to
install any drivers. The key benefits of the Bluetooth
wireless technology are its built-in-security, low cost,
easy of use, robustness, and ad hoc networking capabilities.
The Bluetooth wireless technology is available globally.
Many manufactures from the different companies are busy to
implement the technology in their products. Bluetooth
technology operates in the 2.4 GHZ, one of the unlicensed,
industrial and scientific radio bands. Bluetooth technology
is a free of charge service but your mobile phones set
should support the GSM and CDMA technology.
Today mobile phones have built in capabilities and Bluetooth
functionalities in them. Bluetooth technology is available
in the different range of the devices like mobile phones,
automobiles, medical devices, industries and enterprises
etc. Due to the key features of the Bluetooth technology
like low power consumption, low cost and wireless features
make it more popular. Bluetooth technology does not require
any fixed infrastructure and it is very simple to install
and setup.
No wires are required to connect the Bluetooth devices. You
can connect to other Bluetooth enabled devices anytime if
they come in your range. Bluetooth wireless technology is
widely supported and is secure wireless standard today.
Bluetooth devices has built-in security features such as 128
bit encryption and pin code authentication when Bluetooth
devices identify themselves they use the pin code when they
first time connect.
|
