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Bluetooth Technology: Ankit Vashishtha 200201017 Sunny Gupta 200201073

Bluetooth technology was started in 1995 by Ericsson to create a wireless standard for data and voice transmission between devices. It uses short-range radio waves at 2.4 GHz and allows devices within 10 meters to connect and form a personal area network without needing line of sight. Over 2000 companies are now part of the Bluetooth Special Interest Group working on applications like wireless keyboards, headphones, home networking, and using Bluetooth in areas like healthcare, automotive, and sensor networks. Security is provided through encryption, authentication and frequency hopping to avoid interference between multiple Bluetooth devices.

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354 views17 pages

Bluetooth Technology: Ankit Vashishtha 200201017 Sunny Gupta 200201073

Bluetooth technology was started in 1995 by Ericsson to create a wireless standard for data and voice transmission between devices. It uses short-range radio waves at 2.4 GHz and allows devices within 10 meters to connect and form a personal area network without needing line of sight. Over 2000 companies are now part of the Bluetooth Special Interest Group working on applications like wireless keyboards, headphones, home networking, and using Bluetooth in areas like healthcare, automotive, and sensor networks. Security is provided through encryption, authentication and frequency hopping to avoid interference between multiple Bluetooth devices.

Uploaded by

ainugiri
Copyright
© Attribution Non-Commercial (BY-NC)
We take content rights seriously. If you suspect this is your content, claim it here.
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Bluetooth Technology

Ankit Vashishtha 200201017


Sunny Gupta 200201073
Why Bluetooth ?
• It’s wireless.
• It’s simple.
• It’s inexpensive.
• Open platform.
• Provision for both voice and data.
Development History
• Project started in 1995 by Swedish
telecommunications manufacturer LM
Ericsson.
• In 1998 major telecom companies formed
Bluetooth SIG to develop interoperable,
cross platform applications.
• 2000+ members in SIG
Development Center
• Global headquarters in Bellevue,
Washington, USA.
• Major promoters companies include
Ericsson, IBM, Intel, Microsoft, Motorola,
Nokia and Toshiba.
• SIG has several working groups working on
various projects.
Bluetooth vs. Infrared
• Infrared is line of sight and one-to-one.
• Its advantage
– Low interference, reliable transfer.
Technology Used
• Radio Frequency at 2.45 GHz.
• This is internationally agreed frequency for
Bluetooth.
• Very low signal power ( ~1mw )
• Operation range around 10m.
• Omni directional signals and can pass
through walls and briefcases.
Working of Bluetooth
• Auto conversation between Bluetooth enabled
devices.
• Formation of personal area network (PAN) or
piconet.
• Spread-spectrum frequency hopping.
• Device works on 79 individual, random frequency
within a designated range.
• Transmitter changes 1600 frequencies/sec.
• Data rate upto 1 Mbitsps.
Typical Bluetooth Networks
Working (cont…)
• Inquire
• Page
• Establish a link using Link Manager Protocol
• Discover services using SDP
• Create a channel
• Authenticate
• Send and receive data
Avoiding Interference
• Many applications and devices work
independently in same area without
interference.
• Low Power
• Frequency Hopping
• Software for correcting small errors.
Present applications
• Wireless keyboards, mouse, USB adapter,
modems, pc cards.
• File transfer.
• Headsets, music players.
• GPS receiver.
• Data sharing.
• Gaming.
• Barcode scanner.
Future applications
• Home networking for convenient, safe and
secure house.
• Retail and Mobile e-Commerce.
• Travel
– Ticket less travel, Hotel industry
• Medical
– remote patient monitoring, wireless biometric
data.
Future applications (cont..)
• Automotive Industry
– activating garage doors, and home lighting and
heating systems.
• Bluetooth Messaging.
Bluetooth Security
• 3 modes of communication
– Mode 1 or Insecure mode
– Mode 2 is known as service-level enforced
security
– Mode 3 is known as link-level enforced
security
Bluetooth security (cont..)
• Security is provided in three ways
– pseudo-random frequency hopping
– authentication
– encryption.
Bluetooth Security (cont..)
• Security issues
– Bluejacking
– Bluebugging
– Bluesnarfing
– Cabir Worm
Sensor Network and Bluetooth
• Wide application of Bluetooth technology
in Sensor Area Network (SAN)
• Environment Monitoring, Agriculture,
Security, Infrastructure health
• Research for energy conservation in
Bluetooth senor network

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