Cyclic Prefix OFDM Pilot-Enabled Scattering Interference Mitigation for Integrated Visible Light Communication and Positioning

Visible light-based positioning (VLP) of user device (UD) is important for integrated visible light communication (VLC) and sensing, which however seriously suffers from scattering interference. In this paper, a novel orthogonal-frequency-division-multiplexing (OFDM)-enabled scattering interference mitigation (SIM) method is proposed to address this issue. The proposed OFDM-enabled SIM method will jointly detect the UD location and scattering channel state, and hence scattering interference to VLP will be alleviated via channel equalization. It is corroborated by simulations that our VLP method enhanced by the proposed OFDM-based SIM approach outperforms state-of-the-art VLP baseline methods, due to the cross-domain cooperation between “OFDM-based VLC” and “location detection”.