TY - JOUR
T1 - Exploiting Equalization Techniques for Improving Data Rates in Organic Optoelectronic Devices for Visible Light Communications
AU - Haigh, Paul
AU - Ghassemlooy, Zabih
AU - Le Minh, Hoa
AU - Rajbhandari, Sujan
AU - Arca, Francesco
AU - Tedde, Sandro
AU - Hayden, Oliver
AU - Papakonstantinou, Ioannis
PY - 2012
Y1 - 2012
N2 - This paper presents the use of equalization techniques in visible light communication (VLC) systems in order to increase the data rate. Here we investigate two VLC links a silicon (Si) light emitting diode (LED) and an organic photodetector (OPD), and an organic LED (OLED) plus an Si photodetector (PD), together with three equalization schemes of an RC high pass equalizer, a fractionally spaced zero-forcing equalizer (ZF) and an artificial neural network (ANN). In addition we utilize a pre-distortion scheme to enhance the performance of the digital equalizers. For both systems the bit rate achieved are 750 kb/s from a raw bandwidth (BW) of 30 kHz and 550 kb/s from a raw BW of 93 kHz.
AB - This paper presents the use of equalization techniques in visible light communication (VLC) systems in order to increase the data rate. Here we investigate two VLC links a silicon (Si) light emitting diode (LED) and an organic photodetector (OPD), and an organic LED (OLED) plus an Si photodetector (PD), together with three equalization schemes of an RC high pass equalizer, a fractionally spaced zero-forcing equalizer (ZF) and an artificial neural network (ANN). In addition we utilize a pre-distortion scheme to enhance the performance of the digital equalizers. For both systems the bit rate achieved are 750 kb/s from a raw bandwidth (BW) of 30 kHz and 550 kb/s from a raw BW of 93 kHz.
KW - VLC
KW - equalizers
KW - organic light emitting diodes
KW - organic photodetector
U2 - 10.1109/JLT.2012.2210028
DO - 10.1109/JLT.2012.2210028
M3 - Article
SN - 0733-8724
VL - 30
SP - 3081
EP - 3088
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 19
ER -