TY - GEN
T1 - Home intercommunication system using visible light communications
AU - Kobo, Rachel
AU - Ouahada, Khmaies
AU - Ndjiongue, Richard
AU - Lekgotle, Olorato Precious
N1 - Publisher Copyright:
© 2017 IIMC / IST-Africa.
PY - 2017/11/8
Y1 - 2017/11/8
N2 - The fast growing technology of wireless data transmission through the illumination of light emitting diodes (LEDs) is known as visible light communications (VLC). This technology makes use of visible light as the carrier for transmitting signals over a wireless channel. VLC uses the visible light spectrum for transmission and one of the main advantages of VLC over radio frequency (RF) based communications is that VLC is not susceptible to electromagnetic interference. In this project, VLC is used for the transmission of audio over an optical wireless channel. This is achieved by designing and implementing a simplex intercom system that comprises of a transmitter, a channel and a receiver and the system transmits audio through visible light using on-off keying (OOK) modulation. In this modulation scheme, the intensity of light is varied by switching the LED on and off at a high frequency such that the switching is not detectable by the human eye. The results of the project demonstrate that audio transmission is achievable with visible light.
AB - The fast growing technology of wireless data transmission through the illumination of light emitting diodes (LEDs) is known as visible light communications (VLC). This technology makes use of visible light as the carrier for transmitting signals over a wireless channel. VLC uses the visible light spectrum for transmission and one of the main advantages of VLC over radio frequency (RF) based communications is that VLC is not susceptible to electromagnetic interference. In this project, VLC is used for the transmission of audio over an optical wireless channel. This is achieved by designing and implementing a simplex intercom system that comprises of a transmitter, a channel and a receiver and the system transmits audio through visible light using on-off keying (OOK) modulation. In this modulation scheme, the intensity of light is varied by switching the LED on and off at a high frequency such that the switching is not detectable by the human eye. The results of the project demonstrate that audio transmission is achievable with visible light.
KW - Intercommunication system
KW - Light Emitting Diode
KW - Light-Fidelity (Li-Fi)
KW - OOK modulation
KW - Radio waves
KW - VLC
KW - Wireless-Fidelity (Wi-Fi)
UR - http://www.scopus.com/inward/record.url?scp=85043295170&partnerID=8YFLogxK
U2 - 10.23919/ISTAFRICA.2017.8102333
DO - 10.23919/ISTAFRICA.2017.8102333
M3 - Conference contribution
AN - SCOPUS:85043295170
T3 - 2017 IST-Africa Week Conference, IST-Africa 2017
BT - 2017 IST-Africa Week Conference, IST-Africa 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2017 IST-Africa Week Conference, IST-Africa 2017
Y2 - 31 May 2017 through 2 June 2017
ER -
