Date post: | 19-Nov-2014 |
Category: |
Education |
Upload: | fahad-shaikh |
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Presented By
SK. Fahad
What is NFC• NFC is a short-range wireless
technology.• NFC provides unique advantages over
other available wireless technologies. • The design includes a near-field
transmitter and receiver to send data from one computer to another
How NFC Works : NFC is based on RFID technology that uses magnetic field induction between electronic devices in close proximity. For two devices to communicate using NFC, one device must have an NFC reader/writer and one must have an NFC tag.
Benefits & Features:
• Not restricted to 1-to-1 communication
• Multiple devices in a small area can communicate with each other using the same frequency.
• Maximum transfer bit rate of 800kbps.
• No special software is required.• Operation at a frequency of 13.5
MHz • No ethical concerns due to range
Social networking:NFC can be used in social networking situations, such as sharing contacts, photos, videos or files, and entering multiplayer mobile games.
Application
ApplicationPayment by NFC:Instant payments and coupon delivery using your handset, as we do with your credit card or debit card.
ApplicationIdentity documents:The NFC Forum promotes the potential for NFC-enabled devices to act as electronic identity documents and keycards. As NFC has a short range and supports encryption, it may be more suitable than earlier, less private RFID systems.
Aspect NFC Bluetooth Bluetooth Low Energy
RFID compatible ISO 18000-3 active active
Standardisation body ISO/IEC Bluetooth SIG Bluetooth SIG
Network Standard ISO 13157 etc. IEEE 802.15.1 IEEE 802.15.1
Network Type Point-to-point WPAN WPANCryptography not with RFID available available
Range < 0.2 m ~100 m (class 1) ~50 m
Frequency 13.56 MHz 2.4–2.5 GHz 2.4–2.5 GHzBit rate 424 kbit/s 2.1 Mbit/s ~1.0 Mbit/s
Set-up time < 0.1 s < 6 s < 0.006 s
Power consumption < 15mA (read) varies with
class
< 15 mA (transmit or receive)
Comparing with other wireless technology:
Disadvantages:•Data transfer rate is small compared to blue tooth and other wireless communications.
•No protection in data modification.
•No protection in eavesdropping.