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.