Blue Tooth Main File

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TECHNOLOGY

Presented by

VOSU MITTAL


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What is Bluetooth?

How Bluetooth Technology works?Bluetooth ProtocolBluetooth VersionsAdvantages n Disadvantages

Competting TechnologiesReferencesConclusion


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1.Bluetooth technology eliminates the need for

numerous and inconvenient cable attachments.

2.This technology enable users to automatically

and easily connect a wide range of computing

and telecommunication devices.


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3. Bluetooth makes wireless communication andnetworking between devices in a small

localized area.

4. In Bluetooth all the connections betweendevices are occurring immediately and

invisible.

5. Bluetooth is actually a standard for wireless

communications between devices within a

range of 10metres.


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6. Bluetooth was officially introduced in 1994 by

Jaap Haartsen and Sven Mattisson, and its

intended basic purpose was to be a wire

replacement technology in order to rapidlytransfer voice and data.

7. Bluetooth Special Interest Group is a group

of companies from the telecommunications,computing and networking industries that

promotes the development and deployment of

Bluetooth technology.


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3. Two Bluetooth products can exchange their

addresses and capabilities just after coming

within the range of about 10metres.

4. The radio operates on the globally-available

unlicensed radio band, 2.45 GHz and supports

data speeds of up to 721 Kbps.


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5. The Bluetooth modules can be either built

into electronic devices or used as an adaptor.

For instance in a C they can be built in as a

C card or externally attached via the SB

port.

[BL ETOOTH MO LE]


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6. Connections can be point-to-point or

multipoint. The maximum range is 10 meters but

can be extended to 100 meters by increasing the

power. Bluetooth devices are protected from

radio interference by changing their fre uencies

arbitrarily up to a maximum of 1600 times a

second, a techni ue known as fre uencyhopping.


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7. The Bluetooth specification targets power

consumption of the device from a "hold" modeconsuming 30 micro amps to the active

transmitting range of 8-30milliamps which is

less than 3% of the power used by a standard

mobile phone. The chips also have excellent

power-saving features.

8. utomatic communication between variousdevices within a small area makes it possible

to provide uni ue and innovative services to a

professional worker.


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PICONET WITH OPER TIONS


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1.Bluetooth is defined as a layer protocol

architecture consisting of core protocols, cable

replacement protocols, telephony control protocols,and adopted protocols.

2.Mandatory protocols for all Bluetooth stacks are:

LMP, L2C P and S P. dditionally, these protocolsare almost universally supported: HCI and RFCOMM.


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1.LMP (Link Management Protocol)

sed for control of the radio link between two

devices. Implemented on the controller.

2.L2C P (Logical Link Control & daptation

Protocol)

sed to multiplex multiple logical connectionsbetween two devices using different higher level

protocols

3. S P (Service iscovery Protocol)

Service iscovery Protocol (S P) allows a device to

discover services supported by other devices, and

their associated parameters


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4.HCI (Host/Controller Interface)

Standardised communication between the host

stack (e.g., a PC or mobile phone OS) and thecontroller (the Bluetooth IC). This standard allows

the host stack or controller IC to be swapped with

minimal adaptation.

5. RFCOMM (Serial Port Emulation)

Radio fre uency communications (RFCOMM) is a

cable replacement protocol used to create a virtual

serial data stream. RFCOMM provides for binary

data transport and emulates EI -232 (formerly RS-

232) control signals over the Bluetooth baseband

layer.


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1. Bluetooth v1.1

2. Bluetooth v1.2

3. Bluetooth v2.0 + E R (Enhanced ata Rate)

4. Bluetooth v2.1 + E R

5. Bluetooth v3.0 + HS


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1. Bluetooth Devices are Wireless

In addition to improving safety as a result of

eliminating the clutter of wires and associated

hazardous connections, Bluetooth wireless

technology also offers you many convenient

advantages.2. Bluetooth Technology is Inexpensive

Bluetooth technology is cheap for companies toimplement, which results in lower over-

all manufacturing Costs. These savings are then

passed on to you, the consumer. The end result:

Bluetooth devices are relatively inexpensive.


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3. Bluetooth is Automatic.

When two or more Bluetooth devices enter arange ( p to 30 feet) of one another, they

automatically begin to communicate without you

having to do anything. The best part is: The

devices take care of the entire setup process,and you can go about your business.

4. Low Energy Consumption

Bluetooth uses low power signals. s a result,

the technology re uires little energy and will

therefore use less battery or electrical power.


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5. Share Voice and Data

The Bluetooth standard allows compatibledevices to share both voice and data

communications. For example, it is probably no

surprise that a Bluetooth enabled cell phone is

capable of sharing voice communications with acompatible Bluetooth headset , however, the

same cell phone may also be capable of

establishing a GPRS connection to the Internet.

Then, using Bluetooth, the phone can connect to

a laptop. The result: The laptop is capable of

surfing the web or sending and receiving email.


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6.ACCESSIBLE FROM ANYWHERE

Though Bluetooth has a specific range but we

can access it up to very wide range and can alsouse it from an unanticipated range of application

from mobiles to automobiles. The low power

consumption , small size and low cost enables

this technology to be used in the tiniest ofdevices.


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1. Bluetooth devices can not be connected

with more than one devices at a time, as itfinds problem in discovering the intended

recipient device.

2. Bluetooth has a low data rate( i.e.1 MBps) incomparision to infra-red(i.e.4 MBps).


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INFR REGood SynchronizationComparable ata Rate

Wireless LAN access

Higher ata Rate than BluetoothMulti user connectivity


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1.http://www.bluetooth.com

2.http://www.bluetooth.org3.http://www.opengroup.org/bluetooth

4.http://www.palowireless.com/bluetooth

5.http://www.palowireless.com/infotooth/tut

orial.asp6.http://www.wirelessnetworkstutorial.info

7.http://en.wikipedia.org/wiki/Bluetooth

8.http://www.thewirelessdirectory.com/Blue

tooth-Overview/Bluetooth-Specification.htm


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