Hybrid Super-Nyquist CAP Modulation based VLC with Low Bandwidth Polymer LEDs
Paper in proceeding, 2019

Visible light communication systems often suffer from high frequency attenuation when transmitting out-of-band. This effect has been ameliorated by multi-band modulations such as multi-band carrier-less amplitude and phase (m-CAP), which minimises the effect of decreased high frequency magnitude and maximises signal-to-noise ratio-per-sub-band. On the other hand, in the pass-band region, super-Nyquist CAP (SCAP) can offer throughput improvements with no additional complexity at the receiver, at the cost of bit error rate. We propose, for the first time, a new hybrid SCAP modulation format that takes advantageous of both SCAP (i.e. overlapped sub-bands within the modulation bandwidth) and conventional m-CAP (orthogonally spaced bands outside the modulation bandwidth) while maintaining isolation between noise sources. We show higher baud rates within the passband region whilst supporting out-of-band transmission at lower error vector magnitudes.

visible light communications

digital signal processing

Carrier-less amplitude and phase modulation

modulation

Author

Paul Anthony Haigh

Newcastle University

Petr Chvojka

Czech Technical University in Prague

A. Minotto

University College London (UCL)

Andrew Burton

Northumbria University

Petri Henrik Murto

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Ergang Wang

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry

Zabih Ghassemlooy

Northumbria University

Stanislav Zvanovec

Czech Technical University in Prague

F. Cacialli

University College London (UCL)

I.Z. Darwazeh

Czech Technical University in Prague

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Vol. 2019-September 8904212

30th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2019
Istanbul, Turkey,

Subject Categories

Telecommunications

Communication Systems

Signal Processing

DOI

10.1109/PIMRC.2019.8904212

More information

Latest update

12/9/2020