This document provides an overview of Bluetooth technology. It discusses that Bluetooth allows devices to connect and transmit voice and data within 10 meters without wires. It originated as a cable replacement and was named after the Danish king Bluetooth who united tribes. Bluetooth uses frequency hopping spread spectrum and operates using a piconet structure with a master-slave relationship. Applications include connecting wireless headsets, setting up office networks, and connecting peripherals without cables.

1. BLUETOOTH
PRESENTED BY
PRANATI DAS
2ND YEAR MCA
07MCA/11
GUIDED BY
SANJIBANI PATTANAIK
ASST. PROFESSOR
OUAT

2. Contents
What is Bluetooth?
Origin of Bluetooth
Why the name Bluetooth
How Bluetooth works?
Advantages of Bluetooth
Disadvantage of Bluetooth
Application of Bluetooth
Conclusion
References

3. What is Bluetooth
 Bluetooth is the technology that connect and transmit voice and data to
mobile phones, computers and other devices without the use of wires.
 Bluetooth makes wireless communication and networking between
devices in a small localized area that ranges from 1metres to 10metres.
 Bluetooth technology eliminates
the need for numerous and
inconvenient cable attachments.
 It is the standard of IEEE 802.15.1.
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4. Origin Of Bluetooth
 Bluetooth mainly came into being as a solution to the
cumbersome problem of cables and it was conceived as a
cable replacement technology.
 It was mainly built for providing a short-range wireless
solution to the consumer.

5. Why The Name Bluetooth
Have you ever imagined how the name
Bluetooth relates to the technology ?
Interesting story. In 1994 Bluetooth was
developed by Ericsson which is a Danish
company. They named it after a Danish
king, whose nickname was Bluetooth
because he brought the Danish tribes
together.

6. How Bluetooth Works?
Bluetooth uses something called frequency-hopping spread spectrum,
which is a radio technology. Frequency-hopping spread spectrum (FHSS)
is a technique of transmitting radio signals by hopping or changing a
carrier among many frequency channels, using some sequence which is
known to both transmitter and receiver.
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7. Bluetooth uses a networks topology called a Piconet . When a piconet is
formed between two or more devices, one device takes the role of 'master',
and all other devices assume a 'slave'. Piconets contain a minimum of two
and a maximum of eight Bluetooth devices.
1/10/2013 PICONET STRUCTURE

8. It is like establishing a master-slave relationship. The Bluetooth
devices can function both as a master and a slave.
Piconet is nothing but a network on master and one or more slaves.
Each Piconet is defined by a different channel to which the user
synchronizes. Each of these Piconets has a maximum capacity. All the
devices in the Piconet hop together.
The Piconets communicates with each other and thus form a network
structure which is called Scatternet. A Scatternet is a number of
interconnected piconets that supports communication between more than
8 devices.
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9. SCATTERNET STRUCTURE
1/10/2013 Cross-Piconet communication

10. Bluetooth supports the following kind of broadcasts between the
devices in a Piconet.
1. Wireless point-to-point 2. Wireless point-to-multipoint

11. Bluetooth Products
TOOTHBRUSH
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12.  A company called Beam is introducing a Bluetooth-enabled
toothbrush.
 It came to the market in March 2012. The Beam toothbrush will
available for purchase in November.
 The Beam Toothbrush is a technologically advanced toothbrush
equipped with Bluetooth capability and an accompanying
smartphone app.
 Its main job is to monitor a person's dental hygiene using sensors
that sync with an app, which will then track that data and offer
incentives to improve their brushing habits.
 Sensors in the Beam Brush are activated by contact with the mouth,
which syncs with a timer in the app to time how long a user actually
spends brushing their teeth. The app will also track this over a period
of time, so people can share the results with their dentist and see if
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they need to improve their habits.

13. It will also detect how long a person scrubs different areas of their mouth as
well, and play music while they brush. Beam Technologies is also planning
to add some social elements and game-like achievements to reward users
for their good dental habits. It should be a useful tool in particular for parents
who want to make sure their children are brushing their teeth correctly.

14. Advantage Of Bluetooth
 Wireless
Bluetooth works with out cable, it works with wireless.
 Low energy consumption
Bluetooth uses low power signals. for that reason technology need little
energy, and will use less battery.
Bluetooth Technology is inexpensive
Bluetooth is cheap to manufacture, and anyone can buy it.
Sharing voice and data
The Bluetooth allows to devices to share voice and data communications.
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15. Disadvantage Of Bluetooth
Data Transfer Rate
Bluetooth has a low data rate( i.e.1 MBps) in comparision to infra-
red(i.e.4 MBps).
Range
Bluetooth only has a range of 15 to 30 feet depending on the device.
The small range is a disadvantage for some who may want to use a
Bluetooth device outside of that 30-foot radius.
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16. When there are a number of mobile devices in the same room,
and possibly attempting the same operation. Since Bluetooth is
omni-directional, it encounters problems in discovering the
intended recipient device.
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17. Application of Bluetooth
Connect your wireless headset to your mobile phone, mobile computer or
any wired connection to keep your hands free for more important tasks when
you're at the office or in your car.
 By installing a Bluetooth network in office you can do away with the
complex task of networking between the computing devices. Each Bluetooth
device could be connected to 200 other devices. It supports both point to
point and point to multipoint connections.
The Bluetooth technology connects all your peripherals wirelessly.
Connect your pc or to printers , scanners and other devices without the
trouble of cable attachments.
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18. Conclusion
In conclusion, Bluetooth is a wireless technology that
will make connections between various
devices. Bluetooth Technology takes away the need
for several problematic cable attachments for
connecting mobile phones, handheld devices, and
computers. It is easy, simple, and inexpensive. The
next time you think wireless, think Bluetooth...it's the
best way to communicate!

19. References
www.bluetooth.com
www.bluetooth.org
“Computer Networks” by Tannebaum
www.howstuffwork.com
Computer Communication Networks
by Stalling W

20. Any questions
Thank You