This document provides an overview of Bluetooth technology. It defines Bluetooth as a short-range wireless technology originally developed for exchanging data over short distances between fixed and mobile devices. The document then discusses the history of Bluetooth, its key characteristics such as frequency range and data rates, how it works using frequency hopping spread spectrum, its security features and advantages/disadvantages. Finally, it outlines some applications of Bluetooth and envisions its future including higher data rates, reduced power consumption and increased range.

1. Bluetooth
Technology
Presented By:
Ujjwal Chaudhari.

2. Contents
 Definition of Bluetooth.
 History of Bluetooth.
 Characteristics of Bluetooth.
 Working of Bluetooth.
 Security Features of Bluetooth.
 Advantages of Bluetooth.
 Disadvantages of Bluetooth.
 Application of Bluetooth.
 Future of Bluetooth.
 Conclusion

3. Definition of Bluetooth.
Bluetooth is a short range and low power
wireless technology originally developed for
exchanging data over short distances from
fixed and mobile devices, creating personal
area network.

4. History of Bluetooth
 The word “Bluetooth” is taken from the 10th century Danish King
Harlard, who unified Scandinavian people tribes into a single
kingdom.
 Bluetooth was named because –
 Bluetooth technology was developed in Scandinavian.
 Bluetooth technology was able to unite different industries such as
cell phone, computing and automotive markets.
 The Bluetooth specification was first developed in 1994 by Ericsson
Mobile Communication Ltd.
 5 Companies (Ericsson, Nokia, Intel, Toshiba, & IMB) joined to form
Bluetooth Special Interest Group (SIG) in 1998.
 In 1999, first specification of Bluetooth i.e. Bluetooth 1.0 is released.

5. Characteristics of Bluetooth
 Bluetooth stands for Short-range transmission of digital
voice and data.
 Frequency Range: ISM (Industrial, Scientific and Medical
Radio Bands) 2200MHz – 2400 MHz
 Bluetooth used a Radio Technology called Frequency
Hopping Spread Spectrum.
 Vanishes the need of chord and wire.
 Range of Connection : 10 m – 100 m.
 Supports data rate of : 1Mb/s.

6. Characteristics of Bluetooth
There are three classes of Bluetooth devices.
Class 3 Radio: have range up to 1 meters or 3 feet.
Class 2 Radio: most commonly found in mobile
devices – have range of 10 metes or 30 feet.
Class 1 Radio: used primarily in Industrial use
cases – have range of 100 meters or 300 feet.

7. Working of Bluetooth
Uses short range of RF spectrum at 2.45 GHz.
Uses quick frequency hoping packet switch Protocol.
Transceiver has a unique 48 bit address.
Uses IEEE 802 Standards.
Several Bluetooth devices can form an AD-HOC
Network called a “PICONET”.
In PICONET, one device is act like a master (sets
frequency hoping behavior) and the others as slaves.

8. Working of Bluetooth

9. Working of Bluetooth
More than one PICONET is called SCATTERNET.
Up to Eight devices are allowed in PICONET.
Each PICONET is identified by a different
frequency hopping structure.
Connections can be made up to 10 meters or can
be extended to 100 meters.
Power consumption is 0.3 mA.

10. Security Features of Bluetooth
 Bluejacking
 Funny type message sent to people’s Bluetooth enabled device without owner
permission.
 Bluesnarfing
 Hacker’s gaining access to people Bluetooth enabled device mainly to made some
harm.
 Allows hackers to send message, make phone calls etc.
 The hacker to be within 30 ft rage
 To avoid set your phone to non-discoverable mode
 Bluebugging
 Advanced level of hacking with technology use
 Hacker’s gaining access to people Bluetooth enabled device mainly to made some
harm.
 Allows hackers to send message, make phone calls etc.
 Also 30 ft range

11. Advantages of Bluetooth
Bluetooth devices are wireless
Bluetooth technology is inexpensive
Bluetooth is automatic
Share voice and data
Low energy consumption
Accessible from anywhere

12. Disadvantage of Bluetooth
Low data rate.
Short range.
Low security.
Interference with other devices.

13. Applications of Bluetooth
Laptops
Cellular phones
Personal digital assistants
Headsets
Printers
Car
GPS etc…

14. Future of Bluetooth
Radio2 Working Group
• Working to overcome bandwidth, interference, and
connection setup issues while remaining
compatible with current radio
Other Working Groups
• Audio/Video, Car, Co-existence, ISDN, Local
Positioning, Personal Area Networking, Printing
Study Groups
• Industrial Automation

15. Conclusion
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
– Data Rates
– Power Reduction
– Range

16. References
i. www.bluetooth.com
ii. en.wikipedia.org/wiki/Bluetooth
iii. www.google.com/images

17. THANK YOU