A sensor array approach for robust wavelength division multiplexing in VLC systems

Visible light communication (VLC) systems have been a promising technology to complement wireless communication. In this work, a spectrum sensor array is proposed to convert optical signals into electronic signals on the receiver side to achieve robust wavelength division multiplexing (WDM). By proper design for the weightings of individual spectrum sensor, the effective output signal to interference ratio (SIR) can be maximized. Both simulation results and experimental results demonstrate that a robust WDM is achievable using the proposed approach.