24-01-2012, 04:15 PM
Introduction
[attachment=16540]
Why Bluetooth?
Cable replacement between devices.
Supported by major companies.
Open Specification
Low power consumption
Connection can be initiated without user interaction.
Devices can be connected to multiple devices at the same time.
History
The technology was born in 1994.
The first version was released July 1999.
The Bluetooth name comes from the Danish Viking Harald Blåtand.
Radio
Bluetooth devices operate on 2.4 GHz Industrial Scientific Medical band (ISM band).
Unlicensed in most countries.
Interferences from:
Other radio frequency short-range techniques
Wireless local area networks (IEEE 802.11)
Random noise generators (microwave ovens)
Other Bluetooth units
Security
Bluetooth provides security only over the radio link, from each device to all other devices.
Three security specifications:
Confidentiality
Authentication
Authorization
[attachment=16540]
Why Bluetooth?
Cable replacement between devices.
Supported by major companies.
Open Specification
Low power consumption
Connection can be initiated without user interaction.
Devices can be connected to multiple devices at the same time.
History
The technology was born in 1994.
The first version was released July 1999.
The Bluetooth name comes from the Danish Viking Harald Blåtand.
Radio
Bluetooth devices operate on 2.4 GHz Industrial Scientific Medical band (ISM band).
Unlicensed in most countries.
Interferences from:
Other radio frequency short-range techniques
Wireless local area networks (IEEE 802.11)
Random noise generators (microwave ovens)
Other Bluetooth units
Security
Bluetooth provides security only over the radio link, from each device to all other devices.
Three security specifications:
Confidentiality
Authentication
Authorization
