TY - GEN
T1 - A hybrid OCC-LiFi system with dimming capability
AU - Nguyen, Trang
AU - Islim, Mohamed Sufyan
AU - Haas, Harald
PY - 2021/9/27
Y1 - 2021/9/27
N2 - This paper introduces a hybrid system that simultaneously provides two communication links, a Light Fidelity (LiFi) link and an Optical Camera Communications (OCC) link. It aims to take advantage of OCC to support LiFi in a mobile scenario with reduced alignment constraints. Novel codes are proposed to enable OCC modulation and dimming control, while Augmented Spectral Efficiency Discrete Multitone (ASE-DMT) is selected as a high spectral-and-energy efficient LiFi modulation technique. An experimental demonstration, supported by computer simulations, shows the high performance of the system. Particularly, during the simultaneous OCC-LiFi transmission and dimming control, a signal-to-noise ratio (SNR) of at least 25 dB is achieved in various measurements from both OCC and LiFi decoders. Also, a data rate gain of 18.75 kbps is achieved by the OCC link in the hybrid system when compared to the LiFi link at the communication bandwidth of 20 MHz.
AB - This paper introduces a hybrid system that simultaneously provides two communication links, a Light Fidelity (LiFi) link and an Optical Camera Communications (OCC) link. It aims to take advantage of OCC to support LiFi in a mobile scenario with reduced alignment constraints. Novel codes are proposed to enable OCC modulation and dimming control, while Augmented Spectral Efficiency Discrete Multitone (ASE-DMT) is selected as a high spectral-and-energy efficient LiFi modulation technique. An experimental demonstration, supported by computer simulations, shows the high performance of the system. Particularly, during the simultaneous OCC-LiFi transmission and dimming control, a signal-to-noise ratio (SNR) of at least 25 dB is achieved in various measurements from both OCC and LiFi decoders. Also, a data rate gain of 18.75 kbps is achieved by the OCC link in the hybrid system when compared to the LiFi link at the communication bandwidth of 20 MHz.
KW - dimming
KW - hybrid OCC-LiFi
KW - LiFi
KW - OCC
KW - Optical Camera Communication
U2 - 10.1109/VTC2021-Fall52928.2021.9625279
DO - 10.1109/VTC2021-Fall52928.2021.9625279
M3 - Conference contribution book
AN - SCOPUS:85122984461
SN - 9781665413695
T3 - IEEE Vehicular Technology Conference
BT - 2021 IEEE 94th Vehicular Technology Conference (VTC2021-Fall)
PB - IEEE
CY - Piscataway, NJ.
T2 - 94th IEEE Vehicular Technology Conference, VTC 2021-Fall
Y2 - 27 September 2021 through 30 September 2021
ER -