Bluetooth wireless technology is a cable replacement technology that provides
wireless communication between portable devices, desktop devices and peripherals.
It is used to swap data and synchronize files between devices without having to
connect each other with cable. The wireless link has a range of 10m which offers
the user mobility. This technology can be used to make wireless data connection
to conventional local area networks (LAN) through an access point. There is no
need for the user to open an application or press button to initiate a process.
Bluetooth wireless technology is always on and runs in the background. Bluetooth devices scan for other Bluetooth devices and when these devices are in range they
start to exchange messages so they can become aware of each others capabilities.
These devices do not require a line of sight to transmit data with each other.
Within a few years about 80 percent
of the mobile phones are expected to carry the Bluetooth chip. The Bluetooth transceiver
operates in the globally available unlicensed ISM radio band of 2.4GHz. The ISM
bands include frequency range at 902MHz to 928MHz and 2.4GHz to 2.484GHZ which
do not require operator license from a regulatory agency. This means that Bluetooth
technology can be used virtually anywhere in the world. Another type of wireless
technology that is being used nowadays is infrared signals. The choice of using
either one of the wireless technology will depend on the application for which
it is being used. Bluetooth is an economical, wireless solution that is convenient,
reliable, easy to use and operates over a longer distance than infrared. The initial
development started in 1994 by Ericsson. Bluetooth now has a special interest
group (SIG) which has 1800 companies worldwide. Bluetooth technology enables voice
and data transmission in a short-range radio.
There is a wide range of devises which can be connected easily and quickly without
the need for cables. Soon people world over will enjoy the convenience, speed
and security of instant wireless connection. Bluetooth is expected to be embedded
in hundreds of millions mobile phones, PCs, laptops and a whole range of other
electronic devices in the next few years. This is mainly because of the elimination
of cables and this makes the work environment look and feel comfortable and inviting.
Setting up power point presentations, for example, would no longer require a spaghetti- like tangle of cables between projectors, laptop and printer. You would simply place the laptop near the projector, turn them on, and wait a few moments for them to communicate the necessary operating parameters.
Automatic synchronization can be a real time saver. When you're finished adding information to your palmtop at home, all you have to do is walk by your cubicle at work to get the files uploaded to the desktop PC. When you leave the office, any new files added to your desktop PC are automatically copied to your palmtop. With synchronization there's no longer any confusion about which file is on which machine.
Bluetooth wireless technology will play a key role in the electronic commerce. Soon you'll be able to avoid the line at retail stores to pay for items, or access the Internet anywhere via your mobile phone to order and pay for goods and services. Ericsson and Visa International are among the companies developing payment solutions for the purchase of goods and services over the Internet through mobile devices, including cell phones and palmtops.
If you happen to be a frequent flyer, the Bluetooth specifications offer some advantages for obtaining tickets. You can arrive at the airport and buy a ticket simply by walking past a wireless terminal, which informs your identity, issues an electronic ticket, and bills your credit card. A flight attendant would no longer have to visit passengers and ask them to turn off their electronic devices. After the request is broadcast, the airplane's master Bluetooth device would shut down all electronic devices automatically for takeoff and landing.