4. Bluetooth is a short range (10-100 m) and
low-cost wireless network system to
replace cables and give RF connection
between consumer devices.
Most modern wireless devices use radio frequency (RF)
signals to communicate to the computer. One of the most
common wireless standards used today is Bluetooth. It
uses the same frequencies as the Wi-Fi standard used for
wireless LANs.
Uses the radio range of 2.45 GHz
Theoretical maximum bandwidth is 1 Mb/s
5.
6. • What is Bluetooth?
o Bluetooth is a short-range wireless communication
technology.
• Why this name?
o It was taken from Danish King Harald Bluetooth, who
unified Denmark and Norway in the tenth century .
• When does it appear?
o 1994 – Ericsson study on a wireless technology to link
mobile phones & accessories.
o 5 companies (Ericsson, Nokia, IBM, Toshiba & Intel)
joined to form the Bluetooth Special Interest Group
(SIG) in 1998 .
o First specification released in July 1999.
7. Allows up to 8 devices to communicate in a local
network called a Piconet, also known as a Personal
Area Network or PAN.
Because of its low power consumption, its range is
limited to 10 m.
However, range can be increased to 100 m by
employing a scatternet topology or a higher powered
antenna.
Three classes of Bluetooth devices
Class 3 radios – have a range of up to 1 meter.
Class 2 radios – most commonly found in mobile devices
– have a range of 10 meters.
Class 1 radios – used primarily in industrial use cases
– have a range of 100 meters.
8.
9. • Success of Bluetooth depends on how well
it is integrated into consumer products.
-Consumers are more interested in applications than
the technology.
-Bluetooth must be successfully integrated into
consumer products.
-Must provide benefits for consumer.
-Must not destroy current product benefits.
