Bluetooth is a low-cost, short-range wireless technology designed to replace cables and connect devices over distances of 10-100 meters. It has evolved from its origin in Scandinavia, allowing multiple devices to form a network called a piconet, offering advantages like eliminating wires and facilitating communication, while facing challenges such as a short range and security issues. The future of Bluetooth is promising, with ongoing improvements in speed, range, and security to meet growing demands.

2. CONTENTS
1-What is Bluetooth?
2-History.
3-Technology Review.
4-Basic Ideas About Bluetooth.
5-Bluetooth Architecture.
6-Competting Technologies.
7-Advantages And Disadvantages Of
Bluetooth.
8-Future of Bluetooth.
9-Conclusions.
10-References.

3. What is Bluetooth?
 Bluetooth is a short range(10-100m) and low-
cost wireless network system to replace
cables and give RF connection between
consumer devices.

4. Bluetooth Was Originally a Cable-
Replacement Technology

5. HISTORY
 The word ‘Bluetooth’ is taken from the 10th
century Danish King Harald Bluetooth,he
had been influential in uniting Scandinavian
tribes into a single kingdom.
 Bluetooth was so named because:
 1) Bluetooth technology was developed in
Scandinavia.

2) Bluetooth technology is able to unite differing
industries such as the cell phone, computing,and
automotive markets.

6. TECHNOLOGY REVIEW
 Bluetooth uses a radio technology called
frequency -hopping spread spectrum.
 Supports data rate of 1 Mb/s(originally).
 The Bluetooth specification are developed
and licensed by the Bluetooth Special Interest
Group(SIG).

7. BASIC IDEAS ABOUT
BLUETOOTH:
1)-Bluetooth Characteristics
2)-Classes of Bluetooth
3)-Bluetooth enabled devices
4)-Bluetooth Details

8. Bluetooth Characteristics:
 Allows up to 8 devices to communicate in a
localnetwork called a Piconet, also known as
a PersonalArea Network or PAN
 Because of its low power consumption, its
range islimited to 10 m.
 However, range can be increased to 100 m
by employing a scatternet topology or a
higher powered antenna.

9. Classes Of Bluetooth:
Three classes of bluetooth devices:
1) Class 3 radios: Have a range of upto
1 meter or 3 feet.
2) Class 2 radios: Most commonly found
in mobile devices-have a range of 10 meters
or 30 feet.
3) Class1 radios: Used primarily in industrial use
cases-have a range of 100 meters or 300 feet .

10. Bluetooth Enabled Devices:
 Laptop
 Cellular phones
 Personal Digital assistants
 Headsets
 Printers
 Keyboards
 GPS,etc
 Major use in consumer electronics

11. Bluetooth Details:
 Uses the radio range of 2.45 GHz.
 Theoretical maximum bandwidth is 1 Mb/s.
 Several Bluetooth devices can form an ad
hoc network called a “piconet”.
-In a piconet one device acts as a master (sets
frequency hopping behavior) and the others as
slaves.
- Example: A conference room with many laptops
wishing to communicate with each other.

13. BLUETOOTH
ARCHITECTURE

14. The Bluetooth technology is divided
into two specifications:
 Core Specification
-Deals with the lower
layers of the
architecture and
describes how the
technology works.
 Profile Specification -
Focuses on how to build
interoperating devices
using the core
technology.

15. Competting Technologies:
 Infrared Data
Association(IrDA):synchronization, link
between a phone and a laptop…
– Less flexible than Bluetooth, need of a line of
site.
– Comparable data rate.

16.  Wi-Fi (WLAN) : Wireless LAN access
– Far higher bandwidth and data rate
than Bluetooth.
– Higher power consumption than
Bluetooth.
– Requires infrastructure investment.

17. ADVANTAGES
AND
DISADVANTAGES
OF
BLUETOOTH
TECHNOLOGY

18. ADVANTAGES:
 Eliminates wires.
 Facilitates Data and Voice
Communication.
 Standardized protocol.
 Free of charge.
 Easy to use.

19. DISADVANTAGES:
 Relatively short range.
 Less secure.
 Interference with other devices.

20. FUTURE OF BLUETOOTH:
 Bluetooth has a good future ahead
because it meets a basic need of
connectivity.
 Latest version of Bluetooth are
improving both its security and
capabilities.

21.  New versions of Bluetooth technology
will meet the high-speed and large
range.
 Many companies are designing
impressive bluetooth applications in
demand.

22. CONCLUSIONS:
 A new global standard for data and voice
 Eliminates Cables.
 Low Power, Low range, Low Cost
network devices.
 Bluetooth seems to have a bright future
after reviewing its benefits and wide use.
 Further improvements are planned to be
made in :
1-Data rates 2-Power Reduction 3-Range

23. REFERENCES:
 Bluetooth Architecture Overview
James Kardach
 www.bluetooth.com
 www.palowireless.com
 www.google.com
 www.wikipidia.com