11-09-2013, 03:55 PM
A Technical Seminar Report on VISIBLE LIGHT COMMUNICATION
[attachment=57904]
VLC Introduction
VLC(visible light communication)
:New communication technology using “Visible Light”.
Visible light
: Wavelength between ~400nm (750THz) and ~700nm (428THz)
General Characteristic
Visibility : Aesthetically pleasing
Security : What You See Is What You Send.
Health : Harmless for human body
Using in the restricted area : aircraft, spaceship, hospital
Eye safety
Achievable Data Rates
D-Light (Edinburgh University):
Subcarrier index modulation (SIM) – OFDM is Target rates: 100 Mbps at 5 m
OMEGA project HHI, Siemens
100 Mbit/s multimedia streaming
513Mbit/s achieved at 1000 lux
40Mbit/s NRZ-OOK over several meters
Conclusion
It has been shown that even though most existing efforts are still in a very early stage, VLC is a promising technology with a wide field of prospective applications. An ever-growing interest in VLC throughout the world can be expected to lead to real-world applications in the future. In some fields of application it poses a favor-able alternative to conventional solutions (infrared, WLAN etc.). The main goals for the future are increasing the transmission rate and improving standardization.
[attachment=57904]
VLC Introduction
VLC(visible light communication)
:New communication technology using “Visible Light”.
Visible light
: Wavelength between ~400nm (750THz) and ~700nm (428THz)
General Characteristic
Visibility : Aesthetically pleasing
Security : What You See Is What You Send.
Health : Harmless for human body
Using in the restricted area : aircraft, spaceship, hospital
Eye safety
Achievable Data Rates
D-Light (Edinburgh University):
Subcarrier index modulation (SIM) – OFDM is Target rates: 100 Mbps at 5 m
OMEGA project HHI, Siemens
100 Mbit/s multimedia streaming
513Mbit/s achieved at 1000 lux
40Mbit/s NRZ-OOK over several meters
Conclusion
It has been shown that even though most existing efforts are still in a very early stage, VLC is a promising technology with a wide field of prospective applications. An ever-growing interest in VLC throughout the world can be expected to lead to real-world applications in the future. In some fields of application it poses a favor-able alternative to conventional solutions (infrared, WLAN etc.). The main goals for the future are increasing the transmission rate and improving standardization.