clint chaplin ([email protected]) samsung electronics challenge of nfc technology using...
TRANSCRIPT
Clint Chaplin
Clint Chaplin
([email protected])Samsung Electronics Samsung Electronics
Challenge of NFC technology using Visible
Light
Challenge of NFC technology using Visible
Light
4th December, 20084th December, 2008
Ecma/GA/2008/244Ecma/TC47/2009/010
Part 1 : What is VLC ? VLC Introduction
VLC Application
LED as Light Source for VLC
VLC vs. RF characteristics
Part 2 : VL (Visible Light)-NFC NFC Concept
NFC Application
Why VL-NFC ?
VL-NFC Characteristics
Conclusion
Outline
VLC (Visible Light Communication)
New communication technology using “Visible Light”
Wavelength between ~400nm (750THz) and ~700nm (428THz)
General characteristic
Visibility : Aesthetically pleasing
Security : What You See Is What You Send
Unregulated : No regulation in optical frequency
Health : Harmless for human body
Non-interference with other devices
visibleIR UV
700nm 400nm100μm
RF
3cm1m 1nm
428THz 750THz3THz10GHz300MHz 300PHz
1mm
300GHz
IrDA
TC 48802.15.3c
THzVLC802.11
802.16
VLC Introduction
LED as Light Source for VLC
Light Emitting Diode (LED)
Small
Relatively Long life
More efficient
Low power consumption
Relatively faster response time
Difficult to damage with external shock
High tolerance to humidity
Minimal heat generation
Source: Credit Suisse, 2006.11.2Brightness / Power ratio
Co
st /
Bri
gh
tne
ss r
atio
Incandescent Lamp
Halogen Lamp
HID (High-Intensity Discharge)
Fluorescent Lamp
LED
LED
LED
LED
Performance and Price comparison2003
2005
2010
2015
50 100 1500
1
10
100
Application Function
Mobile
to
Mobile
Contents-sharing Data transfer
Mobile
to
Fixed
File transfer Video streaming M-commerce
Infrastructure
to
Mobile
Indoor Navigation Information-
broadcast
Handheld device, Portable device
CE, Kiosk, Printer
VLC Application
Property VL Comm. RF Comm.
Bandwidth Unlimited, 400nm~700nm Regulatory, BW Limited
EMI No Yes
Line of sight Yes No
Standard Beginning Matured
Power consumption Relatively low Medium
Visibility security Yes No
Infrastructure LED Illumination Access Point
Mobility Limited Yes
Coverage, Distance Narrow, Short Wide, Medium
VL vs. RF Characteristics
Part 1 : What is VLC ? VLC Introduction
VLC Application
LED as Light Source for VLC
VLC vs. RF characteristics
Part 2 : VL (Visible Light)-NFC NFC Concept
NFC Application
Why VL-NFC ?
VL-NFC Characteristics
Conclusion
Outline
Samsung Electronics Co., Ltd. 8
10cm Communication
Smart Card + S/W + RFID
Feature
NFC Reader
NFC Tag
Peer to Peer Communication
Mode
NFC Concept
Samsung Electronics Co., Ltd. 9
Kiosk
P2P
e-Poster
Transportation Payment
NFC Application
Why VL-NFC ?
VL-NFCVL-NFCVL-NFCVL-NFC
Expansion of data Expansion of data rate capacity by not rate capacity by not using frequency using frequency rangerange
High Data RateHigh Data Rate
Visible SecurityVisible Security
UnregulatedUnregulated
What you see is What you see is what you sendwhat you send
No regulation in No regulation in communication communication frequencyfrequency
VisibleSecurity
VLVLNFCNFC
Unregulated
HighDataRate
20 40 60 80 100 120-10
-5
0
5
10
Distance (cm)
20 40 60 80 100 120-10
-5
0
5
10
Distance (cm)
Cov
erag
e (c
m)
120 Mbps 240 Mbps
20 40 60 80 100 120-10
-5
0
5
10
0
2
4
6
8
10
Distance (cm)
320 Mbps -log (BER)
VL-NFC Characteristics
High data rate (Link performance)
Part 1 : What is VLC ? VLC Introduction
VLC Application
LED as Light Source for VLC
VLC vs. RF characteristics
Part 2 : VL (Visible Light)-NFC NFC Concept
NFC Application
Why VL-NFC ?
VL-NFC Characteristics
Conclusion
Outline
Visible Light-NFC has unique properties that opens up new applications and uses for NFC
High speed
Safe for interference sensitive situations
Visible evidence of security
Free from current radio regulation
Conclusion
Thank you!
Q&A