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A Gigabit/s Indoor Wireless Transmission Using MIMO-OFDM Visible-Light Communications

IEEE Photonics Technology Letters · 2012 · Vol. 25(2) · pp. 171–174

Ahmad Helmi Azhar✉(University of Oxford)Tuan‐Anh Tran(University of Oxford)Dominic O’Brien(University of Oxford)

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 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-3</sup> is achieved at the room illumination level of ~1000 lux at 1-m range.

Optical Wireless Communication Technologies Advanced Wireless Communication Technologies Power Line Communications and NoiseVisible light communicationOrthogonal frequency-division multiplexingGigabitBit error rateTransmission (telecommunications)Computer scienceWirelessChannel (broadcasting)MIMOMultiplexing

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High Bandwidth GaN-Based Micro-LEDs for Multi-Gb/s Visible Light Communications