2. Introduction
What is Bluetooth
History
Types Of Bluetooth Devices:
Importance Of Bluetooth
Advantages
Disadvantages
Application
Characteristics Of Bluetooth
Future Of Bluetooth
Conclusion
Reference
3. This technology provides short-range, wireless
connectivity between devices.
It is intended to replace the cables connecting
portable and/or fixed electronic devices.
Cables limit the mobility of the consumer and
are easily lost or broken.
4. Bluetooth is a wireless technology
used to transfer data between
different electronic devices. The
distance of data transmission is
small in comparison to other modes
of wireless communication. This
technology eradicates the use of
cords, cables, adapters and permits
the electronic devices to
communicate wirelessly among each
other. (or)
Bluetooth is a high-speed, low-power microwave
wireless link technology, designed to connect phones,
laptops, PDAs and other portable equipment together
with little or no work by the user.
5. Bluetooth was invented in 1994 by Ericsson.
The company later started working with a larger
group of companies called the Bluetooth Special
Interests Group, or "SIG," to develop the
technology into what it is today.
Bluetooth is not owned by any one company and is
developed and maintained by SIG.
The name Bluetooth came from a code name
originally used by SIG for the project and is a
reference to a 10th century Danish king named
Harold Bluetooth, who was responsible for uniting
Norway, Sweden, and Denmark.
6. It comprises of a base band processor, a radio and an antenna . The base-band
processor converts the data into signals, the antenna of another blue tooth
device, within at least 30 feet distance, receives a transmitted signal in the air.
It uses a frequency hopping
spread spectrum technique
(FHSS) - which is one of two
basic modulation techniques
used in spread spectrum signal
transmission. Frequencies are
switched repeatedly during
radio transmission to help
reduce unlawful access or other
means of telecommunications
to cross paths and cause
interruption
What is Bluetooth Technology:
7. Types Of Bluetooth Devices:
1. Head Set
2. In-Car Bluetooth System
3. Bluetooth Equipped Printer
4. Bluetooth Equipped Web Cam
5. Bluetooth GPS System
6. Bluetooth Key Board
8. These have Replaced cables for transferring
Information from one Electronic Device to another
one.
These have decreased Strain like carrying phones
while talking, making hands free to do another
work.
This is cheaply Available.
It’s Mobility is also very Important as it doesn’t
need any power outlet or Internet connection or
any other items.
9. Eliminates wires
Facilitates Data and Voice Communication
Offers formation of Ad hoc networks
Standardized protocol
Free of charge
Easy to use
Low power consumes battery less
Stationary and mobile environments
10. Disadvantages Of Bluetooth:
Data sent between two Bluetooth devices is very slow
compared with Wi-Fi transfer Rate.
Range Of a Bluetooth Device is 15-30 feet depending upon the
Device.
Security is Biggest Disadvantage as transfer takes place
through radio waves and a hacker can easily hack it.
Battery usage is also a problem, it will make device out of
power before it would have if Bluetooth was not powered on.
11. The Internet Bridge
An extension of this model could be a mobile
computer that allows surfing the Internet
irrespective of the location of the user, and
regardless of whether the user is cordlessly
connected through a mobile phone (cellular) or
through a wire line connection (e.g. PSTN, ISDN,
LAN, xDSL).
Automatic Check-in
Hotels are testing, or plan to test, services that
allow guests to check in, unlock room doors and
even control room temperature with handheld
devices equipped with Bluetooth Technology
12. It separates the frequency band into hops. This
spread spectrum is used to hop from one channel
to another, which adds a strong layer of security.
Up to eight devices can be networked in a piconet.
Signals can be transmitted through walls and
briefcases, thus eliminating the need for line-of-
sight.
Devices do not need to be pointed at each other, as
signals are omni-directional.
Governments worldwide regulate it, so it is
possible to utilize the same standard wherever one
travels
13. Bluetooth has a good future ahead because it meets a
basic need of connectivity.
Currently a protocol is being researched that would
support large ad hoc networks.
Latest version of Bluetooth are improving both its
security and capabilities.
Ultra wide band has been chosen by the Bluetooth
Special Interest Group as the future of Bluetooth
Technology.
New versions of Bluetooth technology will meet the
high-speed and large range.
Many companies are designing impressive bluetooth
applications in demand.
14. Authentication and
encryption is provided
at the Link Manager
layer.
The PIN is translated
into a 128 bit link key
which is used for
authentication.
After authentication the
radios will settle on a
suitable length
encryption key to be
used.
Bluetooth relies on PIN
codes to establish
trusted relationships
between devices.
15. 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
