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BLUETOOTH TECHNOLOGY

Presented by,

Ashwini vilas mayekar

Roll no. 3015

T.Y.EX

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CONTENTWhat is Bluetooth ?

Overview of Bluetooth History.

Goal & vision.

Middleware protocol group.

Headset profile.Bluetooth vs. IrDA.

Future of Bluetooth

Advantages.

Dis-Advantages.

Applications.

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What is Bluetooth? Bluetooth wireless technology is an

open specification for a low-cost, low-

power, short-range radio technology forad-hoc wireless communication of voiceand data anywhere in the world.

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Overview of Bluetooth History What is Bluetooth?

Bluetooth is a short-range wireless communicationstechnology.

Why this name?

It was taken from the 10th century Danish King Harald

Blatand who unified Denmark and Norway.

When does it appear?

1994 Ericsson study on a wireless technology to link mobilephones & accessories.

5 companies joined to form the Bluetooth Special InterestGroup (SIG) in 1998.

First specification released in July 1999.

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Bluetooth Goals & Vision

Originally conceived as a cablereplacement technology.

Short-Range Wireless Solution.

Voice and Data Capability.

Worldwide Usability.

Other usage models began to develop: Personal Area Network (PAN).

Wireless telematics.

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Middleware Protocol Group

(contd.)

Service Discovery Protocol (SDP)

Means for applications to discover

device info, services and its

characteristics.

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Headset Profile

Profile provides:

Both devices must provide capability to initiate connection &

accept/terminate calls.

Volume can be controlled from either device.

Audio gateway can notify headset of an incoming call.

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Bluetooth vs. IrD

Bluetooth

Point to Multipoint

Data & Voice

Easier Synchronization

due to omni-directional

and no LOS

requirement

Devices can be mobile

Range 10 m

IrDPoint to point

Intended for Data

Communication

Infrared, LOS communication

Can not penetrate solid objects

Both devices must be stationary,

for synchronization

Range 1 m

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Future of Bluetooth Broadcast channel.

Topology management.

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Advantages of Bluetooth.

Relatively inexpensive transceivers.

Relatively low power required totransmit data.

Short range.

End-to-end encryption (128-bit).

Does not have the line of sight

problems associated with thecompeting infrared (IR) wireless datatransferring protocols.

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Disadvantages of Bluetooth.

The range is limited compared to WI-FI.

Bluetooth networks generally lackscalability.

Bluetooth has limited bandwidth.

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Application

Mobile phone and handset free head set.

Mouse ,keyboard & printer.

OBEX.

Infrared.

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Thank You