The bit error rate performance of non-line-of-sight ultraviolet communication through atmospheric turbulence is studied. The communication performance degradation under different strengths of turbulence is evaluated. Particularly, under strong turbulence conditions, the communication distance can be shortened by 30%, or at a given distance the communication rate can be reduced by half than the counterpart of no turbulence.
Dear editor,Visible light communication （VLC） has raised great interests since it supplements the unlicensed spectrum resource for ultra-high data rate transmission [1]. In order to resist time dispersion and guarantee the real-valued and non-negative constraint in VLC channel, DC-biased optical orthogonal frequency-division multiplexing （DCO-OFDM） and asymmetrically clipped optical OFDM （ACO-OFDM） techniques have been utilized in VLC systems [2]. Unlike DCO-OFDM, which requires high DC bias [3], ACO-OFDM enjoys an advantage of high power efficiency and wide light emitting diodes （LED） dynamic region.
