Bluetooth

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Bluetooth
andros-7, andhan-7, kimtaa-6
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Contents

• Introduction
• Technical description
• Usage models
• Closing words
• References

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Introduction

• Started in 1994
• Vision of wireless information exchange
• Bluetooth Special Interest Group
• Brief overview of Technology

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Some technical data

• 9mm x 9mm microchip
• 2.4 GHz ISM band
• Same as microwave ovens
• 10cm 10m nominal link range
• Up to 100m with increased power

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Bluetooth Protocol Stack
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Error correction and security

• FEC (1/3 and 2/3 rate)
• ARC
• Pseudo-random frequency band hops
• Authentication
• Encryption

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Modes of use

• Three modes of use
• One asynchronous data channel at 721kb/s in one
  direction and 57.6kb/s in the other. Or a 432.6
  kb/s symmetric link.
• Up to three simultaneous synchronous voice
  channels, each at 64kb/s.
• Simultaneously one asynchronous data channel and
  one synchronous voice channel.

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Usage models

• The consumer market
• The industrial market
• Some examples

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Usage models
Synchronize the handheld organizer with the
office computer.
Transfer presentations wirelessly.
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Usage models
Check machine status in factories.
Unlock doors and load your predefined
home settings.
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Usage models
The home security system is based on
Bluetooth- enabled components.
Use your handheld organizer to buy tickets at the
airport.
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Usage models
In the lounge, access your office with
Bluetooth- enabled Internet ports.
Automatically check in when entering the
pre- booked hotel.
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Usage models
When entering a tourist attraction, automatically
get maps and info to your handheld organizer.
Unlock the door and load the pre-defined car
settings automatically.
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Usage models
Confirm an pay your cinema tickets with
your handheld organizer.
Download statistics at the racetrack wirelessly.
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Usage models
Exchange information at trade shows.
Communicate and pay for your food at
the restaurant.
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References

• http//www.bluetooth.com
• http//bluetooth.ericsson.se
• http//www.digianswer.com/bluetooth
• http//www.nyteknik.se
• http//www.intel.com/mobile/bluetooth
• http//www.motorola.com/bluetooth
• http//sysopt.earthweb.com/articles/bluetooth
• http//www.nokia.com/bluetooth
• http//www.gsmdata.com/bluetooth.htm