Post on 20-Dec-2015
transcript
By By Abdullah M. Dalloul…20020447.Abdullah M. Dalloul…20020447. Salman Y. Mansour...20020826.Salman Y. Mansour...20020826.
SupervisorSupervisor.. Dr. Basil hammedDr. Basil hammed..
Bluetooth TechnologyBluetooth Technology
What is Bluetooth ?What is Bluetooth ? HistoryHistory Bluetooth ArchitectureBluetooth Architecture Bluetooth systemBluetooth system Network TopologyNetwork Topology SecuritySecurity Bluetooth benefitsBluetooth benefits ConclusionConclusion
ContentContent BLUETOOTHBLUETOOTH
What is Bluetooth?What is Bluetooth?
A short-range wireless communications A short-range wireless communications
technology.technology. Low bandwidth, low power, voice and data Low bandwidth, low power, voice and data
transfer.transfer. Adaptable to any type of electronic devices; Cell Adaptable to any type of electronic devices; Cell
phones, laptops, PC`s, Cameras and scanners.phones, laptops, PC`s, Cameras and scanners. Automatic connections (no user prompting).Automatic connections (no user prompting).
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HistoryHistory
Name came from Harold Blatand king of Name came from Harold Blatand king of Denmark ( 940 - 981).Denmark ( 940 - 981).
1994 – Ericsson study on a wireless technology to 1994 – Ericsson study on a wireless technology to link mobile phones and accessories.link mobile phones and accessories.
1998 the Special Interest Group (SIG) was 1998 the Special Interest Group (SIG) was founded by Ericcssonfounded by Ericcsson..
1999 first Bluetooth production.1999 first Bluetooth production.
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The Special Interest Group (SIG)The Special Interest Group (SIG)
MicrosoftMicrosoft MotorolaMotorola NokiaNokia ToshibaToshiba ErricsonErricson IBMIBM IntelIntel Agere systemsAgere systems
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Bluetooth ArchitectureBluetooth Architecture
ISM Radio band (ISM Radio band (IIndustrial, ndustrial, SScientific and cientific and MMedical) atedical) at 2.4 - 2.48 GHz.2.4 - 2.48 GHz.
Range 10 - 100 m .Range 10 - 100 m . 1 Mbps Data Rate (750 Kbps in real).1 Mbps Data Rate (750 Kbps in real). Power consuming 1 milliwatt.Power consuming 1 milliwatt. Embedded frequency chip into an electronic Embedded frequency chip into an electronic
device.device.
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Bluetooth systemBluetooth system
Consisting of a Bluetooth Module and a Bluetooth Consisting of a Bluetooth Module and a Bluetooth Host.Host.
Module is partitioned into the radio unit, the Module is partitioned into the radio unit, the baseband unit and the Host Controller firmware.baseband unit and the Host Controller firmware.
Host consists of the software protocol stack and Host consists of the software protocol stack and the application softwarethe application software
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Bluetooth Module
Bluetooth Host
ContinueContinue…… Application software is Application software is
the user specified and the user specified and implements the device implements the device functionality.functionality.
Host Controller realizes Host Controller realizes communication between communication between Module and Host.Module and Host.
Baseband is a controller, Baseband is a controller, establishing and establishing and maintaining the maintaining the connection.connection.
Radio transceiver Radio transceiver enables the wireless link enables the wireless link between devices.between devices.
Bluetooth Host
Bluetooth Module
Radio unit
HCI driver
Host drives and application
Baseband & link controller
Host controller
Link Manager
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Network TopologyNetwork Topology Piconet .Piconet . ScatternetScatternet..
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SecuritySecurity For each Bluetooth device there is:-For each Bluetooth device there is:-
A 48 bit fixed public address that is unique for A 48 bit fixed public address that is unique for each device.each device.
A 128 bits private user key which is derived A 128 bits private user key which is derived during initialization and kept stableduring initialization and kept stable
A 128 bits random number which is generated A 128 bits random number which is generated randomly for each new transactionrandomly for each new transaction
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Bluetooth benefitsBluetooth benefits::
Eliminates cables and wires between devices.Eliminates cables and wires between devices.
Facilitates both data and voice communicationFacilitates both data and voice communication
Enables ad hoc networks between multiple Enables ad hoc networks between multiple Bluetooth devices.Bluetooth devices.
Spread-spectrum frequency.Spread-spectrum frequency.
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Other wireless technologiesOther wireless technologies::
IrDAIrDA The IrDA enables bidirectional infrared The IrDA enables bidirectional infrared
communication between the devices ( at least communication between the devices ( at least 1-meter / Typically, 2 meters).1-meter / Typically, 2 meters).
HomeRF HomeRF The HomeRF is designed to carry both voice The HomeRF is designed to carry both voice
and data and to inter-operate with the Public and data and to inter-operate with the Public Switched Telephone Network and the Internet.Switched Telephone Network and the Internet.
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Comparison of TechnologiesComparison of Technologies
BluetoothBluetooth HomeRFHomeRF IrDAIrDAMax. SpeedMax. Speed 11 MbpsMbps 1010 MbpsMbps 44 MbpsMbps
PowerPower LowLow HighHigh NoneNone
Data RateData Rate 11 MbpsMbps 1.61.6 MbpsMbps 1616 MbpsMbps
DistanceDistance 1010 metersmeters 5050 metersmeters 55 metersmeters
CostCost MediumMedium MediumMedium LowLow
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ConclusionsConclusions
Bluetooth was originally intended to be a cable Bluetooth was originally intended to be a cable replacement. replacement.
Bluetooth is a global, RF-band (ISM band: Bluetooth is a global, RF-band (ISM band: 2.4GHz), short-range, low power, personal 2.4GHz), short-range, low power, personal devicesdevices
Embedding Bluetooth chip into an electronic Embedding Bluetooth chip into an electronic device will allow many devices to be device will allow many devices to be Bluetooth-enabled.Bluetooth-enabled.
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Thanks
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