Title :
A Gigabit/s Indoor Wireless Transmission Using MIMO-OFDM Visible-Light Communications
Author :
Azhar, Ahmad Helmi ; Tran, Thomas ; O´Brien, D.
Author_Institution :
Dept. of Eng. Sci., Univ. of Oxford, Oxford, UK
Abstract :
This letter reports an experimental demonstration of indoor wireless visible-light communication transmission at 1 Gb/s. The system consists of a four-channel multiple-input multiple-output link that uses white LED sources, each transmitting signals at 250 Mb/s using orthogonal frequency division multiplexing modulation. A nine-channel imaging diversity receiver is used to detect the signals, and an average bit error rate of 10-3 is achieved at the room illumination level of ~1000 lux at 1-m range.
Keywords :
MIMO communication; OFDM modulation; diversity reception; error statistics; indoor communication; light emitting diodes; modulation; optical communication; telecommunication channels; LED sources; MIMO-OFDM visible-light communications; bit error rate; four-channel multiple-input multiple-output link; gigabits indoor wireless transmission; indoor wireless visible-light communication transmission; nine-channel imaging diversity receiver; orthogonal frequency division multiplexing modulation; room illumination; Bit error rate; Light emitting diodes; Lighting; MIMO; OFDM; Receivers; Signal to noise ratio; MIMO; MIMO-OFDM; OFDM; visible-light communications;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2231857
