Optical Single Carrier-Interleaved Frequency Division Multiplexing for Visible Light Communication Systems

Saied, Osama, Ghassemlooy, Fary, Rajbhandari, Sujan and Burton, Andrew (2019) Optical Single Carrier-Interleaved Frequency Division Multiplexing for Visible Light Communication Systems. Optik, 194. p. 162910. ISSN 0030-4026

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Official URL: https://doi.org/10.1016/j.ijleo.2019.06.010

Abstract

In this paper, a novel optical single carrier-interleaved frequency division multiplexing (OSC-IFDM) signaling scheme for an intensity modulation and direct detection (IM/DD) based visible light communications (VLC) system is presented. We show that, OSC-IFDM significantly improves the peak-to-average-power ratio (PAPR) of the DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM). The reduction in the PAPR value is achieved by exploiting the symmetrical characteristics of the single carrier-interleaved frequency division multiple access (SC-IFDMA) time domain symbol, whereby the imaginary and real parts of the SC-IFDMA samples are separated and transmitted through two sub-symbols. Simulation results show that, the PAPR of OSC-IFDM is 10 dB lower than that of the DCO-OFDM scheme. We also show that the proposed scheme offers higher spectral efficiency compared to our previous work.

Item Type: Article
Uncontrolled Keywords: SC-IFDMA, PAPR, visible light communications
Subjects: F200 Materials Science
F300 Physics
F500 Astronomy
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Elena Carlaw
Date Deposited: 10 Jul 2019 08:28
Last Modified: 11 Oct 2019 10:26
URI: http://nrl.northumbria.ac.uk/id/eprint/39931

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