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Bluetooth Technology

The original content for this topic was provided by Puneet Gupta, a technology specialist in Radio networks and freelance technology writer based in Bangalore, India. This content was enhanced and edited by MobileInfo.Com technical staff.

The author specializes in the field of wireless communication. He is presently working with Lucent Technologies in India in GSM/GPRS development.  He holds a degree in Electronics and Communications Engineering from the University of Delhi.   

What is Bluetooth?

"Think of a connected world of electronic devices and appliances around you!  You click on an icon for a device and you are linked to it, automatically and transparently"

Bluetooth technology eliminates the need for numerous and inconvenient cable attachments for connecting fixed computers, mobile phones, mobile computers, handheld devices, digital cameras and even new breed of digital appliances. It will enable users to connect a wide range of computing and telecommunications devices easily and simply, without the need to buy, carry, or connect cables - quite often proprietary to a specific device. It delivers opportunities for rapid ad hoc connections, and the possibility of automatic, unconscious, connections between devices.  It creates the possibility of using mobile data in a variety of applications. 

Bluetooth makes wireless communication and networking between devices in a small localized area of a room or a small office as easy as switching on the light. In Bluetooth all the connections between devices are instantaneous and invisible and the devices can talk even if they are not in line of sight because Bluetooth utilizes a radio-based link. Your laptop could send information to a printer in the next room, or your microwave could send a message to your mobile phone telling you that your meal is ready.

Bluetooth is actually a standard for wireless communications between devices in a personal area network (PAN) using radio frequency  for a short range (around 10 meters). So any two devices that follow the standard can communicate and exchange data between each other without the need of any connection to be made between them. A group of Bluetooth devices like a mobile phone, a digital camera, a hand held device etc. can instantly form a network with each other as soon as they are switched on. You could have a mobile phone in your pocket and you could be sending e-mails using your laptop without making any connection between your laptop and the mobile. Your refrigerator could be placing an order with the supermarket if your milk supply has been exhausted using your mobile phone. 

Briefly, Bluetooth technology

  • uses radio waves in 2.4 GHz band - therefore, no line of sight is required
  • supports multipoint, not just point to point 
  • works in a small confined area - 10 to 15 meters apart
  • is able to support speeds of 1-2 Mbps today but will offer higher speeds in future
  • chip sets are relatively inexpensive (though more expensive than IrDA)- $10 to $20 today in large quantities - will go down in future
  • has significant industry support with over 1800 members in the industry consortium

More Information on Bluetooth

Bluetooth Index Page  |  What Is Bluetooth?  |  How It Works
 
Air Interface & Frequency Band  Applications  |  Technology Status Products & Vendors 
   Competing Technologies  | 
Market Outlook  |  Specifications  |  FAQ  | Resources


Related Resources:
>
Technological Advances
> Hot Topics
> Current Topics
> Wireless LANs
> WAP 
 

 

 
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