Bluetooth

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Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength radio transmissions in the ISM band from 2400–2480 MHz) from fixed and mobile devices, creating personal area networks (PANs) with high levels of security.

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Bluetooth

  1. 1. CONTENTS1-What is Bluetooth?2-History.3-Technology Review.4-Basic Ideas About Bluetooth.5-Bluetooth Architecture.6-Competting Technologies.7-Advantages And Disadvantages OfBluetooth.8-Future of Bluetooth.9-Conclusions.10-References.
  2. 2. What is Bluetooth? Bluetooth is a short range(10-100m) and low-cost wireless network system to replacecables and give RF connection betweenconsumer devices.
  3. 3. Bluetooth Was Originally a Cable-Replacement Technology
  4. 4. HISTORY The word ‘Bluetooth’ is taken from the 10thcentury Danish King Harald Bluetooth,hehad been influential in uniting Scandinaviantribes into a single kingdom. Bluetooth was so named because: 1) Bluetooth technology was developed inScandinavia.2) Bluetooth technology is able to unite differingindustries such as the cell phone, computing,andautomotive markets.
  5. 5. TECHNOLOGY REVIEW Bluetooth uses a radio technology calledfrequency -hopping spread spectrum. Supports data rate of 1 Mb/s(originally). The Bluetooth specification are developedand licensed by the Bluetooth Special InterestGroup(SIG).
  6. 6. BASIC IDEAS ABOUTBLUETOOTH:1)-Bluetooth Characteristics2)-Classes of Bluetooth3)-Bluetooth enabled devices4)-Bluetooth Details
  7. 7. Bluetooth Characteristics: Allows up to 8 devices to communicate in alocalnetwork called a Piconet, also known asa PersonalArea Network or PAN Because of its low power consumption, itsrange islimited to 10 m. However, range can be increased to 100 mby employing a scatternet topology or ahigher powered antenna.
  8. 8. Classes Of Bluetooth:Three classes of bluetooth devices:1) Class 3 radios: Have a range of upto1 meter or 3 feet.2) Class 2 radios: Most commonly foundin mobile devices-have a range of 10 metersor 30 feet.3) Class1 radios: Used primarily in industrial usecases-have a range of 100 meters or 300 feet .
  9. 9. Bluetooth Enabled Devices: Laptop Cellular phones Personal Digital assistants Headsets Printers Keyboards GPS,etc Major use in consumer electronics
  10. 10. Bluetooth Details: Uses the radio range of 2.45 GHz. Theoretical maximum bandwidth is 1 Mb/s. Several Bluetooth devices can form an adhoc network called a “piconet”.-In a piconet one device acts as a master (setsfrequency hopping behavior) and the others asslaves.- Example: A conference room with many laptopswishing to communicate with each other.
  11. 11. BLUETOOTHARCHITECTURE
  12. 12. The Bluetooth technology is dividedinto two specifications: Core Specification-Deals with the lowerlayers of thearchitecture anddescribes how thetechnology works. Profile Specification -Focuses on how to buildinteroperating devicesusing the coretechnology.
  13. 13. Competting Technologies: Infrared DataAssociation(IrDA):synchronization, linkbetween a phone and a laptop…– Less flexible than Bluetooth, need of a line ofsite.– Comparable data rate.
  14. 14.  Wi-Fi (WLAN) : Wireless LAN access– Far higher bandwidth and data ratethan Bluetooth.– Higher power consumption thanBluetooth.– Requires infrastructure investment.
  15. 15. ADVANTAGESANDDISADVANTAGESOFBLUETOOTHTECHNOLOGY
  16. 16. ADVANTAGES: Eliminates wires. Facilitates Data and VoiceCommunication. Standardized protocol. Free of charge. Easy to use.
  17. 17. DISADVANTAGES: Relatively short range. Less secure. Interference with other devices.
  18. 18. FUTURE OF BLUETOOTH: Bluetooth has a good future aheadbecause it meets a basic need ofconnectivity. Latest version of Bluetooth areimproving both its security andcapabilities.
  19. 19.  New versions of Bluetooth technologywill meet the high-speed and largerange. Many companies are designingimpressive bluetooth applications indemand.
  20. 20. CONCLUSIONS: A new global standard for data and voice Eliminates Cables. Low Power, Low range, Low Costnetwork devices. Bluetooth seems to have a bright futureafter reviewing its benefits and wide use. Further improvements are planned to bemade in :1-Data rates 2-Power Reduction 3-Range
  21. 21. REFERENCES: Bluetooth Architecture OverviewJames Kardach www.bluetooth.com www.palowireless.com www.google.com www.wikipidia.com

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