Title :
On the performance of SC-FDE schemes with decision feedback equalizer for visible light communications
Author :
Celik, Yasin ; Kizilirmak, Refik Caglar ; Odabasioglu, Niyazi ; Uysal, Murat
Author_Institution :
Dept. of Electr. & Electron. Eng., Aksaray Univ., Aksaray, Turkey
Abstract :
In this paper, we investigate the two single carrier frequency domain equalization (SC-FDE) techniques, namely on-off keying single carrier frequency domain equalization (OOK-SC-FDE) and decomposed quadrature optical (DQO)-SC-FDE, under realistic channel conditions with a practical LED model for visible light communications (VLC). We first compare their performances under dynamic range constraints of the LEDs and observe lower peak-to-average power ratio (PAPR) for SC-FDE schemes as compared to orthogonal division multiplexing (OFDM) techniques. We further introduce decision feedback equalizer (DFE) for SC-FDE schemes and demonstrate performance improvement in multi-tap indoor VLC channels.
Keywords :
OFDM modulation; amplitude shift keying; decision feedback equalisers; frequency-domain analysis; light emitting diodes; optical communication; DFE; DQO-SC-FDE; LED model; OFDM technique; OOK-SC-FDE; PAPR; decision feedback equalizer; decomposed quadrature optical; dynamic range constraint; light emitting diode; multitap indoor VLC channel; on-off keying; orthogonal division multiplexing technique; peak-to-average power ratio; single carrier frequency domain equalization; visible light communication; Bit error rate; Decision feedback equalizers; Frequency-domain analysis; Integrated optics; Optical feedback; Optical filters; Peak to average power ratio; decision feedback equalizer; decomposed quadrature optical SC-FDE; dynamic range constraint; on-off keying SC-FDE; visible light communication;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193307
