NFC is a short-range wireless communication technology that allows data exchange between devices within 10 cm of each other. It evolved from RFID technology. Nokia launched the first mobile phone with NFC. NFC operates at 13.56 MHz and works by one device having an NFC reader/writer and the other an NFC tag. Applications include transferring files between phones, downloading content from smart posters, exchanging contact info, and mobile payments for transportation and purchases. Advantages are convenience without pairing and versatility, while disadvantages are security, cost, short range, and lower data rates.
2. 2
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.
Mainly used for data communication
between two mobile devices.
3. 3
Evolution of NFC
NFC is an extension of Radio
frequency
identification
or
RFID
technology.
Nokia was the first to launch NFC in a
mobile phone .
Nokia 6131
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How NFC Works
NFC is based on RFID technology that uses
magnetic field induction to enable
communication
between
electronic
devices in close proximity.
NFC operates at 13.56 MHz.
For two devices to communicate using
NFC, one device must have an NFC
reader/writer and one must have an NFC
tag. The tag is essentially an integrated
circuit containing data, connected to an
antenna, that can read and written by the
reader.
5. Comparison With Existing Technologies
5
Aspect
NFC
RFID
Network Standard ISO 13157 etc. IEEE 802.15.1
Bluetooth
IEEE 802.15.1
Range
Upto 10cm
<1m
Upto 30m
Frequency
13.56 MHz
13.56 Mhz
(varies)
2.4–2.5 GHz
Bit rate
424 kbit/s
50kbit/s
2.1 Mbit/s
< 0.1 s
< 0.1 s
<6s
Set-up time
Power
consumption
< 15mA (read) < 15mA (read)
High
Connectivity
Touch/Tap
connect
Configuration
needed
Send/Receive
information
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Applications of NFC
Used to transfer files between two mobile
phone
Download music or video from a smart
poster
7. 7
Applications of NFC
Exchange business cards, Pay bus or train
or air fare, Parking Tickets, Pay at Kiosks,
Pay and purchase at Point of Sale Terminals
9. 9
Advantages of NFC
Very Convenient
No manual configuration and settings.
No search and pair procedure.
Versatility
Disadvantages of NFC
Security
Costly
Short connectivity range
Less data transfer rate (200-412kbps)