All detail of Bluetooth..

1. BLUETOOTH

2. INTRODUCTION
• A New technology
• Bluetooth is a new short range communication device.
• Why the name “Bluetooth” ?
• What is Bluetooth ?
-A wireless, low cost, radio solution
-Designated to operate in unlicensed ISM band
• Low complexity, low power
• Bluetooth chip
- operates between 2.4 GHz & 2.48 GHz radio freq. range
- Range for communication is 10 meters-100 meters

3. FEATURES
• Bluetooth transfers data at the rate of 1Mbps. This is
about three times faster than parallel ports & about six
times then serial ports.
• Bluetooth operate at lower power levels then cellular
phones. Also it alternates power saving modes to
minimize power consumption,
• Bluetooth has effective range of 32 feet. It can transmit
voice, data, video & still images ,even under poor
condition.
• Bluetooth operates on the unlicensed 2.4 Ghz ISM band
which is used in more than 95% of countries worldwide.

4. HOW IT WORKS ?..........
• The original idea- to eliminate need of proprietary
cables.
• The Bluetooth chip transmits the information at a special
frequency to receiver Bluetooth chip.
• Bluetooth enabled electronics devices connect &
communicate wirelessly via short-range network called
PICONET.
• In each piconet –one master devices & other slave
devices.
• As many as 7 active slaves & 255 parked can be
connected to master device in a piconet at one time.
• Active slaves can be in 3 contact mode:-
Active, sniff, hold.

5. • Compared with other wireless technologies that operate
in ISM frequency band, Bluetooth uses shorter data
packets & a higher hop rate.
• Another advantage is that it gives user the flexibility of
roaming between access devices in different physical
areas.
• Bluetooth wireless devices can link to network, such as
corporate Ethernet LAN through an “access point”, which
includes Bluetooth transceiver and base band controller.
• It is a circuitry to convert information from the Bluetooth
format to Ethernet format and interface circuit to
connect the access point to a wired network though a
cable.

6. • Any Bluetooth wireless technology contains a radio unit,
a base band unit and other software units.
• A radio unit is a actual transceiver, which enable the
wireless link between Bluetooth devices.
• Bluetooth currently can have max of 1MW transmitter
power allows operation over distance up to 10 meters.
• The base band unit is a hardware consisting of flash
memory and CPU which interface with radio unit and
the host device at the hardware level.

7. • Frequency Band/ frequency jam
-> The band is divided in to 79 channels, each of
which has a 1 MHz bandwidth.
-> To avoid signal interference FHSS sends massages in
packets or chunks of data.
-> In Bluetooth specifications packets are sent on
different channels within the 2.4GHz bend as quickly as
1600 different hops per second.
->The Bluetooth specifications uses encryption &
authentication tools to ensure security of transmitted
data.
• Blutooth Scatter Net
many piconets together form scetternet.

8. SECURITY
• MODES OF SECURITY
>>No secure
>>Service level secure
>>Link level secure
FREQUNCY-HOPPING SPREAD SPECTRUM
SLAVE
MASTER
2.4835 GHZ
2.4835 GHZ
2.4835 GHZ
2.4835 GHZ
2.4835 GHZ
BLUETOOTH DEVICE #1
BLUETOOTH DEVICE #2
DATA

9. DEVICE TRUST LEVELS
• Trusted devices
• Untrusted devices

10. SECURITY LEVELS
• Authentication
• Authorization
• Encryption
BLUTOOTH CAN PROVIDE INTERCONNECTION FOR
LOCAL DEVICES
FREQUENCY
HOPING SCATTER NET
SEQUENCE 2
NO A
3 1
1
2
4
PICONET A PICONET B
BLUETOOTH DEVICES

11. • Able to interconnect up to 8 transceivers
in a point
• More than 2 piconets can form scatternet
SUPPORT FOR THE MULTIMEDIA TERMINAL

12. BLUETOOTH APPLICATIONS
• In desktop computing
• For images
• In telephones
• To make PAN extremely portable
• To Automatically update the data
UNIQUE APPLICATION: MEDICAL USE
• Prototype mobile pulse
• Blood pressure sensor

13. BLUETOOTH BENEFITS
• Point to multipoint capability
• Operates at unlicensed frequency
• Low cost
• Create easy access
BLUETOOTH PROFILES
• Generic Access Profile (GAP)
• Service Discovery Application Profile (SDAP)
• Serial Port Profile (SSP)
• Generic object Exchange Profile (GOEP)

14. NEAR FUTURE
• Configuration of workspace will be more
efficiently implemented
• Workers won’t have to continuously
login/out of their computer.
• Computer schedules, documents, e-mails
& all other information will be
synchronized whenever you go.

15. CONCLUSION
• Bluetooth is set to be communication
standard. Through its small
size, considerable functionality & flexibility
and very low cost, it will found in many
modern devices offering control and
information easily & simply
• Thus Bluetooth will extend the scope of
cellular system well beyond today’s
horizons.