Saturday, 28 September 2013

Bluetooth Basics

The technology of Bluetooth wireless is a short

range communications method intended to replace

the cables that connect portable or fixed devices

while maintaining the highest levels of security.

The key features offered by Bluetooth include

low power and low cost. The specification in

Bluetooth defines a uniform structure for a wide

range of devices to communicate and connect with

one another.

The technology behind Bluetooth has achieved

global satisfaction such as enabled devices, almost

everywhere in the world. Bluetooth devices will

connect and communicate without wires through

short range and networks known as piconets.

Each device will simultaneously communicate with

up to seven other devices within a single piconet,

meaning that each device can also belong to

several piconets simultaneously. The piconets

are dynamically established as Bluetooth enabled

devices enter and leave the proximity of radio.

A fundamental to Bluetooth strength is the

ability to handle both data and voice transmissions

simultaneously. This will enable users to enjoy

varieties of innovative solutions such as hands

free talking, printing and fax capabilities,

and other applications.


Unlike other standards of wireless, the Bluetooth

specification gives product developers both a

link layer and application layer definitions,

which will help support data and voice applications.


The Bluetooth technology operates in the industrial

and scientific band at 2.4 to 2.485 GHz, using a

spread spectrum, frequency hopping signal.


The adaptive frequency hopping of Bluetooth

technology was designed to reduce interference

between wireless technologies that share the 2.4

GHz spectrum. Adaptive frequency hopping (AFH)

works well within the spectrum to take full

advantage of the frequency available.

AFH hopping allows for more efficient transmission

within the spectrum, which provides users with

greater performance even if they are using other

technologies along with Bluetooth.

No comments:

Post a Comment