Adaptive scheme for maintaining the performance of the in-home white-LED visible light wireless communications using OFDM

作者：Chow C W^*; Yeh C H; Liu Y F; Huang P Y; Liu Y

来源：Optics Communications, 2013, 292: 49-52.

DOI：10.1016/j.optcom.2012.11.081

• Visible light communication (VLC)
• Optical wireless communication (OW)
• Orthogonal frequency division Multiplexing (OFDM)

Spectral-efficient orthogonal frequency division multiplexing (OFDM) is a promising modulation format for the light-emitting-diode (LED) optical wireless (OW) visible light communication (VLC). VLC is a directional and line-of-sight communication; hence the offset of the optical receiver (Rx) and the LED light source will result in a large drop of received optical power. In order to keep the same luminance of. the LED light source, we propose and demonstrate an adaptive control of the OFDM modulation-order to maintain the VLC transmission performance. Experimental results confirm the feasibility of the proposed scheme.

• 出版日期2013-4-1