Filter Bank Multicarrier Modulation Schemes for Visible Light Communication

Abstract

Filter bank multicarrier (FBMC) modulation scheme has come out as a capable contender for next generation wireless systems. This paper proposes FBMC modulation schemes for visible light communication (VLC). These modulation schemes consist of intensity modulation/direct detection (IM/DD) channel. The objective is to overcome some of the drawbacks of mostly used orthogonal frequency division multiplexing (OFDM) based schemes. Single carrier modulation technique such as multi-level pulse amplitude (M-PAM) and multi-level quadrature amplitude modulation (M-QAM) as multi carrier modulation technique are used to implement FBMC modulation scheme. Both DC bias and non-DC bias methods are used for analysis. The analytical performance is provided using parameters Bit error rate (BER) and spectral efficiency. It is found that proposed FBMC based schemes are more spectral and power efficient than optical OFDM based schemes.