Bluetooth Pr 2

8/2/2019 Bluetooth Pr 2

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Bluetooth was officially introduced by telecoms

vendor Ericsson in 1994 and its intended basic

purpose was to be a wire replacement

technology in order to rapidly transfer voice and

data.


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The word Bluetooth is an anglicised version of the

Scandinavian Bltand/Bltann, the epithet of the

tenth-century king Haral I of Denmark and parts of

Norway who united dissonant Danish tribes into a

single kingdom. The implication is that Bluetooth

does the same with communications protocols,

uniting them into one universal standard.


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Bluetooth technology eliminates the need for

numerous and inconvenient cable attachment.

This technology enables user to automatically

and easily connect a wide range of computing

and telecommunication devices.

Bluetooth make wireless communication and

network between devices in a small localized

area.

Bluetooth is actually a standard for wireless

communication between devices within a range

of 10 meters.


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Bluetooth is a high-speed, low-power microwave

wireless link technology, designed to connect

phones, laptop, PDAs and other portable

equipment together.

Unlike infra-red, Bluetooth does not require and

line-of-sight positioning of connected devices

like infra-red.

Two Bluetooth products can exchange theiraddresses and capabilities just after coming

within the range of about 10 meters.


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Connections can be point-to-point or multipoint.

The maximum range is 10 meters but can be

extended 100 meters by increasing the power.

Bluetooth devices are protected from radio

interference by changing their frequenciesarbitrarily up to a maximum of 1600 times a

second, a technique know as frequency hopping.

Piconet is the important factor in Bluetooth

connectivity. It is simply a collection of devices

connected through Bluetooth technology.


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ADVANTAGES DISADVANTAGES


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ADVANTAGES DISADVANTAGES

Bluetooth is Automatic

Low Energy Consumption

Share Voice & DataBluetooth Technology is Inexpensive

Bluetooth Devices are Wireless

Accessible From Anywhere

Bluetooth device cannot be

connected with more than

one device at a time.

Bluetooth has a low data rate (i.e.

1MBps) in comparison to infra-red

(i.e. 4MBps).


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V1.1

The Bluetooth version 1.1 is the first truly successful

operating version of Bluetooth technology.

V1.2

Faster transmission speeds (1 Mbps). Improves voice

quality of audio connections.

V2.0+EDR

Enhanced Data Rate. Three times faster than the

original Bluetooth specification. Multiple-

connectivity.

V2.1+EDREnhanced Data Rate. Improved Pairing.Enhanced Power Optimization.

High Speed. Uni-cast Connectionless Data.

Enhanced Power Control.V3.0+HS


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Bluetooth Pr 2