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We propose and experimentally demonstrate a novel channel-independent multi-band orthogonal circulant matrix transform (MB-OCT) precoding, to efficiently combat the severe frequency-selective fading induced by the limited modulation bandwidth of visible light communication (VLC). The proposed MB-OCT precoding exhibits ladder-like signal-to-noise-ratio (SNR) profile, thus significant BER reduction...
VLC needs a ubiquitous network as its backbone to avoid becoming an information isolated island. In this paper we propose and experimentally demonstrate an indoor hybrid system that integrates VLC and PLC. OFDM modulation scheme is used to maximize the transmission rate. Experiments show the system works well with the goal of full link transmission.
We propose an experimental demonstration of visible light communication (VLC) based on interleave division multiple access (IDMA), which offers low peak to average power ratio, low complexity, high robustness against multiple access interference and burst error.
Visible light communication (VLC) offers a power-efficient, clean alternative to RF technology, which is feasible for future 5G wireless backhaul. We experimentally demonstrate an outdoor WDM-VLC system employing circular (7,1) modulation. An aggregate capacity of 1.74Gb/s is successfully achieved over 100-m outdoor free space transmission.
In this paper, different PAPR reduction schemes for orthogonal frequency division multiplexing (OFDM) based visible light communication (VLC) system are experimentally investigated. We show that PAPR reduction may not always result in performance improvement in VLC systems. Compared to the linear selective mapping (SLM) precoding scheme, the nonlinear companding schemes, albeit providing larger PAPR...
Laser diode based visible light communication link with data rate of 2.2 Gbps over a 12-meter underwater channel is reported using non-return-to-zero on-off keying modulation scheme. The underwater optical wireless communication link beyond 10-meter can be achieved using visible lasers.
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