Title :
2.7 Mb/s With a 93-kHz White Organic Light Emitting Diode and Real Time ANN Equalizer
Author :
Haigh, Paul Anthony ; Ghassemlooy, Zabih ; Papakonstantinou, Ioannis ; Hoa Le Minh
Author_Institution :
Opt. Commun. Res. Group, Northumbria Univ., Newcastle upon Tyne, UK
Abstract :
This letter presents new experimental results on a 2.7-Mb/s organic light emitting diode (OLED) based visible light communications (VLCs) system. We also demonstrate for the first time an online artificial neural network for any VLC system (including inorganics). The major mitigating factors for OLED-VLC systems are the baseline wander phenomenon causing threshold detection to fail and bandwidth limitation caused by low transport mobility, introducing inter-symbol interference into the link and thus the requirement for an equalizer. The online filtering is implemented using the TI TMS320C6713 DSP board and compared with offline results.
Keywords :
equalisers; optical neural nets; organic light emitting diodes; OLED; TI TMS320C6713 DSP board; VLC system; bandwidth limitation; baseline wander phenomenon; bit rate 2.7 Mbit/s; frequency 93 kHz; inorganics; inter-symbol interference; low transport mobility; online artificial neural network; online filtering; real time ANN equalizer; threshold detection; visible light communications; white organic light emitting diode; Artificial neural networks; Bandwidth; Bit error rate; Digital signal processing; Equalizers; Modulation; Organic light emitting diodes; Artificial neural networks; equalizers; organic light emitting diodes; visible light communications;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2273850
