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www.oeclib.in
Submitted By:
Odisha Electronic Control Library
Seminar
On
WIRELESS
COMMUNICATION
• What is wireless communication?
• Modes of wireless communication!
– Bluetooth
– NFC (Near Field Communication)
– Wifi
– Lifi
• Advantages
• Disadvantages
• Conclusion
• Reference
What is wireless communication?
• In layman language it is
communication in which information
is transferred between two or more
points without any wire.
Modes of wireless communication!
• Bluetooth
• NFC (Near Field Communication)
• Wifi
• Lifi
Wireless Communication ppt
What is Bluetooth?
• Bluetooth is a method for data
communication that used short
range radio links to replace cables
between computers and their
connected units.
• Named on – Danish king harald
Bluetooth
• Developed in Scandinavia.
How does Bluetooth works?
• Bluetooth networking transmits data via low-
power radio waves. It communicates on a
frequency of 2.45 gigahertz.
• Bluetooth doesn't require line of sight
between communicating devices.
• Bluetooth can connect up to eight
devices simultaneously.
• Bluetooth uses a technique called spread-
spectrum frequency hopping
Bluetooth is essentially a networking
standard that works at two levels:
• It provides agreement at the physical level --
Bluetooth is a radio-frequency standard.
• It provides agreement at the protocol level,
where products have to agree on when bits
are sent, how many will be sent at a time, and
how the parties in a conversation can be sure
that the message received is the same as the
message sent.
Applications of bluetooth!
• Bluetooth speakers
• Bluetooth headphones
• Cable less connections to the printers
• Bluetooth keyboard
• Etc
(NEAR FIELD
COMMUNICATION)
What is NFC?
• NFC is a short-range high frequency wireless
communication technology that enables the
exchange of data between devices over about
a 10 cm distance.
• It allows devices to establish peer-to-peer
radio communications, passing data from one
device to another by touching them or putting
them very close together.
How NFC works?
• NFC came out of RFID. RFID, or radio-frequency
identification, is the technology used by superstores to
keep track of goods, it uses electromagnetic induction
in order to transmit information. NFC is similar
technology, but standardized for consumer
smartphones.
• NFC is a means of sending data over radio waves. In
that sense it is similar to Wi-Fi or Bluetooth, but unlike
those protocols (and like RFID) NFC can be used to
induce electric currents within passive components as
well as just send data. And it is faster than Bluetooth.
Wireless Communication ppt
Benefits over Bluetooth..
• The significant advantage of NFC over
Bluetooth is the shorter set-up time.
• Due to its shorter range, NFC provides a
higher degree of security than Bluetooth and
makes NFC suitable for crowded areas.
• NFC can also work when one of the devices is
not powered by a battery.
• Unlike Bluetooth, no pairing code is needed.
Applications…
• NFC chips or tags are very small in size, it can
be embedded in the movie posters, real estate
agent posters etc.
• Health care department.
• NFC will replace car keys, ID badges and
credit/debit cards.
• Implementation in food packaging, flyers and
merchandisers as well.
Wireless Communication ppt
What is wifi?
 Wifi or wireless fidelity, allows you to access the internet
while on the move; you can remain online while moving
from one area to another in a wireless mode.
 Wifi enabled computers send and receive data indoors
and out ;anywhere within the range of a base station.
 Its just as fast as cable modem connection.
 Wifi is a generic term that refers to the IEEE 80211
communications standard for wireless local area
networks(WLANs)
Wireless Communication ppt
Wireless Communication ppt
Wireless Communication ppt
Wireless Communication ppt
Wireless Communication ppt
Wireless Communication ppt
Lifi? (light fidelity)
lifi is transmission of data through
illumination by taking the fiber out of fiber
optics by sending data through LED light bulb.
This varies in intensity faster than human eye
can follow.
It is the fast and cheap wireless
communication system which is optical
version of wifi.
Wireless Communication ppt
Wireless Communication ppt
Wireless Communication ppt
Applications
• In vehicles and traffic lights.
• In aircrafts and underwater.
• Hospitals
• Street lamps
• Petroleum and Chemical industries
Advantages of wireless communication
• Wireless
• Speed
• Cost
• Durability
• Flexibility
• Place of device
Disadvantages of wireless
communication
• Power consumption
• Security issues
• Compatibility issues
Reference
• www.google.com
• www.wikipedia.com
THANK YOU!! 
Queries?

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Wireless Communication ppt

  • 1. www.oeclib.in Submitted By: Odisha Electronic Control Library Seminar On WIRELESS COMMUNICATION
  • 2. • What is wireless communication? • Modes of wireless communication! – Bluetooth – NFC (Near Field Communication) – Wifi – Lifi • Advantages • Disadvantages • Conclusion • Reference
  • 3. What is wireless communication? • In layman language it is communication in which information is transferred between two or more points without any wire.
  • 4. Modes of wireless communication! • Bluetooth • NFC (Near Field Communication) • Wifi • Lifi
  • 6. What is Bluetooth? • Bluetooth is a method for data communication that used short range radio links to replace cables between computers and their connected units. • Named on – Danish king harald Bluetooth • Developed in Scandinavia.
  • 7. How does Bluetooth works? • Bluetooth networking transmits data via low- power radio waves. It communicates on a frequency of 2.45 gigahertz. • Bluetooth doesn't require line of sight between communicating devices. • Bluetooth can connect up to eight devices simultaneously. • Bluetooth uses a technique called spread- spectrum frequency hopping
  • 8. Bluetooth is essentially a networking standard that works at two levels: • It provides agreement at the physical level -- Bluetooth is a radio-frequency standard. • It provides agreement at the protocol level, where products have to agree on when bits are sent, how many will be sent at a time, and how the parties in a conversation can be sure that the message received is the same as the message sent.
  • 9. Applications of bluetooth! • Bluetooth speakers • Bluetooth headphones • Cable less connections to the printers • Bluetooth keyboard • Etc
  • 11. What is NFC? • NFC is a short-range high frequency wireless communication technology that enables the exchange of data between devices over about a 10 cm distance. • It allows devices to establish peer-to-peer radio communications, passing data from one device to another by touching them or putting them very close together.
  • 12. How NFC works? • NFC came out of RFID. RFID, or radio-frequency identification, is the technology used by superstores to keep track of goods, it uses electromagnetic induction in order to transmit information. NFC is similar technology, but standardized for consumer smartphones. • NFC is a means of sending data over radio waves. In that sense it is similar to Wi-Fi or Bluetooth, but unlike those protocols (and like RFID) NFC can be used to induce electric currents within passive components as well as just send data. And it is faster than Bluetooth.
  • 14. Benefits over Bluetooth.. • The significant advantage of NFC over Bluetooth is the shorter set-up time. • Due to its shorter range, NFC provides a higher degree of security than Bluetooth and makes NFC suitable for crowded areas. • NFC can also work when one of the devices is not powered by a battery. • Unlike Bluetooth, no pairing code is needed.
  • 15. Applications… • NFC chips or tags are very small in size, it can be embedded in the movie posters, real estate agent posters etc. • Health care department. • NFC will replace car keys, ID badges and credit/debit cards. • Implementation in food packaging, flyers and merchandisers as well.
  • 17. What is wifi?  Wifi or wireless fidelity, allows you to access the internet while on the move; you can remain online while moving from one area to another in a wireless mode.  Wifi enabled computers send and receive data indoors and out ;anywhere within the range of a base station.  Its just as fast as cable modem connection.  Wifi is a generic term that refers to the IEEE 80211 communications standard for wireless local area networks(WLANs)
  • 24. Lifi? (light fidelity) lifi is transmission of data through illumination by taking the fiber out of fiber optics by sending data through LED light bulb. This varies in intensity faster than human eye can follow. It is the fast and cheap wireless communication system which is optical version of wifi.
  • 28. Applications • In vehicles and traffic lights. • In aircrafts and underwater. • Hospitals • Street lamps • Petroleum and Chemical industries
  • 29. Advantages of wireless communication • Wireless • Speed • Cost • Durability • Flexibility • Place of device
  • 30. Disadvantages of wireless communication • Power consumption • Security issues • Compatibility issues