Abstract
Recently, visible light communication (VLC) is regarded as a new type of wireless communication that utilizes intensity modulation and direct detection (IM/DD) to realize signal transmission. In order to make better use of spatial resources to realize multi-LED collaborative transmission and dimming control, multi-LED phase-shifted space-time codes (MP-STC) has been proposed for dimmable multi-LED VLC systems. Although the MPSTC scheme has much better communication and illumination performance, the complexity of the traditional maximum likelihood (ML) detection algorithm is too high to implement. In this paper, a low complexity detection algorithm has been proposed for the MP-STC scheme. The simulation results show that the detection algorithm’s error performance is close to or even achieving the ML detection algorithm’s error performance.
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