Analysis of Nyquist Pulse Shapes for Carrierless Amplitude and Phase Modulation in Visible Light Communications

Paul Anthony Haigh, Petr Chvojka, Stanislav Zvanovec, Zabih Ghassemlooy, Izzat Darwazeh

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)
2 Downloads (Pure)

Abstract

This paper proposes and experimentally demonstrates, for the first time, two new candidate pulse shapes for carrier-less amplitude and phase modulation in the context of visible light communications. It is commonly accepted that the pulse shape at the heart of the Hilbert pair used to generate the required orthogonal signal spaces should be the square-root raised cosine. In this work, we introduce two additional candidate pulse shapes, namely the first-order Xia pulse and the so-called better-than-Nyquist pulse. We demonstrate experimentally that the better-than-Nyquist pulse offers superior bit-error rate performance compared to the square-root raised cosine and Xia pulses under additive white Gaussian noise channel conditions, whilst offering lower computational complexity.
Original languageEnglish
Pages (from-to)5023-5029
Number of pages7
JournalJournal of Lightwave Technology
Volume36
Issue number20
Early online date6 Sep 2018
DOIs
Publication statusPublished - 15 Oct 2018

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