Near Field Communication (NFC) is a short-range wireless connectivity technology that allows data transmission between devices that are 4-5 cm apart. NFC uses inductive coupling to transmit data securely at 13.56 MHz. It originated from RFID technology and was standardized by the NFC Forum in 2004. NFC provides benefits like intuitive interactions with a simple touch, versatility across many industries, and inherently secure transmissions over short ranges. Common applications of NFC include contactless payments, data sharing, and setup of wireless connections.

1. Near Field Communication
By,
Siddharth D.C.(1RV09IT043)
Shomik.M .(1RV09IT040)
Varun .R. Athreya .(1RV09IT065)
IT Dept., RVCE

2. Outline
 Brief introduction
 History
 Key benefits
 NFC Operation
 NFC tags & Security Threats
 NFC and other wireless technologies
 NFC Application
 NFC in Market
IT Dept., RVCE

3. What is NFC ?
 Standards based technology used to provide
short range wireless connectivity, that carry
secure two way interactions between electronic
devices.
 Provides contact-less communication up to
distance of 5 cm.This makes it more “secure”.
 Utilizes inductive coupling for its operation.
 Form of RFID but has specific standards of
operation.
IT Dept., RVCE

4. Origins
 NFC traces its roots back to Radio-frequency
identification, or RFID. RFID allows a reader to
send radio waves to a passive electronic tag for
identification and tracking.
 1983 The first patent to be associated with the
abbreviation RFID was granted to Charles
Walton.
 2004 Nokia, Philips and Sony established the
Near
Field Communication (NFC) Forum
 2006 Specification for "Smart Poster" records
IT Dept., RVCE

5. ….
 2006 Nokia 6131 was the first NFC phone
 2009 In January, NFC Forum released Peer-to-
Peer standards to transfer contact, URL, initiate
Bluetooth.
 2010 Samsung Nexus S: First Android NFC
phone
 2011 Google I/O "How to NFC" demonstrates
NFC to initiate a game and to share a contact,
URL, app, video,
 2011 NFC support becomes part of the Symbian
mobile operating system with the release of
Symbian Anna version.
IT Dept., RVCE

6. Key benefits
 NFC provides a range of benefits to consumers
and businesses, such as:
 Intuitive: NFC interactions require no more than a
simple touch
 Versatile: NFC is ideally suited to the broadest
range of industries, environments.
 Open and standards-based: The underlying layers
of NFC technology follow universally implemented
ISO, ECMA, and ETSI standards
 Technology-enabling: NFC facilitates fast and
simple setup of wireless technologies, such as
Bluetooth, Wi-Fi, etc.)
…..
IT Dept., RVCE

7. …
 Inherently secure: NFC transmissions are short
range (from a touch to a few centimeters)
 Interoperable: NFC works with existing
contactless card technologies
 Security-ready: NFC has built-in capabilities to
support secure applications
IT Dept., RVCE

8. Inductive coupling
An inductively coupled
transponder comprises an
electronic data carrying device,
usually a single microchip, and
a large coil that functions as an
antenna
Inductively coupled
transponders are almost
always operated passively
IT Dept., RVCE

9. NFC Tech Device Types &
Oper’n near field communication standard
 The NFC
defines two types of NFC device.
- Initiator
-Target
• Active mode of communication: In the active
NFC mode of communication, both devices
generate an RF signal on which the data is
carried.
• Passive mode of communication: In this mode
of communication, only one NFC device
generates an RF field. The second passive
device which is the target uses a technique
called load modulation to transfer the data back
to the primary device or initiator.
….
IT Dept., RVCE

10. ….
 NFC- wireless technology
Operating frequency-13.56 MHz (unregulated
13.56 MHz frequency band).
As a result no licenses are required for operation
on these frequencies.
 NFC -Half duplex as the same channel is used
for both transmit and receive.
 Technique- Listen before talk protocol
IT Dept., RVCE

11. Data Transfer & Tags
 NFC Tag- passive device
The users touches an NFC enabled device onto
the tag. A small amount of power is taken by the
NFC tag from the reader/writer to power the tag
electronics. The tag is then enabled to transfer a
small amount of information to the reader/writer.
 The data stored in the tag memory is transferred
to the NFC enabled device. Although normally
only a small amount of data, this may be used to
direct the device to a website URL, it may be a
small amount of text, or other data.
…..
IT Dept., RVCE

12. …
TAG’S TYPE CAPABILITY MEMORY SPEED
TYPE 1 Read & Rewrite 2 kbyte 109 kbit/s
TYPE 2 Read ,Rewrite 2 kbyte 109 kbit/s
Configure-Read
only
TYPE 3 Complex 2 kbyte 220 kbit/s
operation
TYPE 4 Read / 32 kbyte 424 kbit/s.
Rewritable
/Read-only
IT Dept., RVCE

13. Tag
characteristics
 Read speed
 Die size
 Unit price
IT Dept., RVCE

14. NFC Security Threats
 Eaves dropping
 Data corruption
 Data modification
 Man-in-middle attack
IT Dept., RVCE

15. Comparisons
IT Dept., RVCE

16.  Bluetooth: Although both Bluetooth and NFC
can be used to transfer data, Bluetooth has
been designed to transfer data over much
greater distances. NFC is designed to be
close proximity only.
 Wi-Fi / IEEE 802.11: Wi-Fi is designed for
local area networks, and is not a short range
peer to peer technology.
 RFID: Although RFID is very similar to NFC
in many respects, RFID is a much broader
technology. NFC is a specific case which is
defined by standards enabling it to be
interoperable.
IT Dept., RVCE

17. NFC Applications
IT Dept., RVCE

18. ….
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19. NFC in Market
 Nokia 700 Samsung nexus s
And many more phones from Nokia with symbian
Anna and Samsung Android phones support NFC
IT Dept., RVCE

20. Bibliography
 www.nfcforum.com
 www.radioelectronics.com
 www.gizmodo.com
 www.blognfc.com
 www.engadget.com

21. IT Dept., RVCE