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Experimental comparisons of optical OFDM approaches in visible light communications

Ahmad Helmi Azhar, Dominic C. O'Brien

Open publisher page 9 citations

Abstract

This paper presents an experimental comparison of optical orthogonal frequency division multiplexing (OFDM) approaches in visible light communications (VLC). We demonstrate that OFDM schemes with asymmetric signals suffer from baseline wander in practical transmission experiments, which degrades the overall bit-rate performance. Several schemes that combat this effect are reported and the performances of these schemes are measured. However, it is demonstrated that a DCO-OFDM scheme achieves higher bitrate at target BER in a VLC system that is bandwidth-limited.

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What this paper is about

This paper presents an experimental comparison of optical orthogonal frequency division multiplexing (OFDM) approaches in visible light communications (VLC). We demonstrate that OFDM schemes with asymmetric signals suffer from baseline wander in practical transmission experiments, which degrades the overall bit-rate performance. Several schemes that combat this effect are reported and the performances of these schemes are measured. However, it is demonstrated that a DCO-OFDM scheme achieves higher bitrate at target BER in a VLC system that is bandwidth-limited.

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OpenAlex reports 9 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

This paper presents an experimental comparison of optical orthogonal frequency division multiplexing (OFDM) approaches in visible light communications (VLC). We demonstrate that OFDM schemes with asymmetric signals suffer from baseline wander in practical transmission experiments, which degrades the overall bit-rate performance. Several schemes that combat this effect are reported and the performances of these schemes are measured. However, it is demonstrated that a DCO-OFDM scheme achieves higher bitrate at target BER in a VLC system that is bandwidth-limited.

Key concepts: Visible light communication, Orthogonal frequency-division multiplexing, Computer science, Electronic engineering, Bandwidth (computing), Bit error rate, Transmission (telecommunications), Multiplexing

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