TY - JOUR
T1 - Optical single carrier-interleaved frequency division multiplexing for visible light communication systems
AU - Saied, Osama
AU - Ghassemlooy, Zabih
AU - Rajbhandari, Sujan
AU - Burton, Andrew
PY - 2019/10/1
Y1 - 2019/10/1
N2 - In this paper, a novel optical single carrier-interleaved frequency division multiplexing (OSC-IFDM) signaling scheme for an intensity modulation and direct detection (IM/DD) based visible light communications (VLC) system is presented. We show that, OSC-IFDM significantly improves the peak-to-average-power ratio (PAPR) of the DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM). The reduction in the PAPR value is achieved by exploiting the symmetrical characteristics of the single carrier-interleaved frequency division multiple access (SC-IFDMA) time domain symbol, whereby the imaginary and real parts of the SC-IFDMA samples are separated and transmitted through two sub-symbols. Simulation results show that, the PAPR of OSC-IFDM is 10 dB lower than that of the DCO-OFDM scheme. We also show that the proposed scheme offers higher spectral efficiency compared to our previous work.
AB - In this paper, a novel optical single carrier-interleaved frequency division multiplexing (OSC-IFDM) signaling scheme for an intensity modulation and direct detection (IM/DD) based visible light communications (VLC) system is presented. We show that, OSC-IFDM significantly improves the peak-to-average-power ratio (PAPR) of the DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM). The reduction in the PAPR value is achieved by exploiting the symmetrical characteristics of the single carrier-interleaved frequency division multiple access (SC-IFDMA) time domain symbol, whereby the imaginary and real parts of the SC-IFDMA samples are separated and transmitted through two sub-symbols. Simulation results show that, the PAPR of OSC-IFDM is 10 dB lower than that of the DCO-OFDM scheme. We also show that the proposed scheme offers higher spectral efficiency compared to our previous work.
KW - PAPR
KW - SC-IFDMA
KW - visible light communications
UR - https://pureportal.coventry.ac.uk/en/publications/optical-single-carrier-interleaved-frequency-division-multiplexin
U2 - 10.1016/j.ijleo.2019.06.010
DO - 10.1016/j.ijleo.2019.06.010
M3 - Article
SN - 0030-4026
VL - 194
JO - Optik
JF - Optik
M1 - 162910
ER -