Saied, Osama, Ghassemlooy, Zabih, 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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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: | 31 Jul 2021 11:36 |
| URI: | http://nrl.northumbria.ac.uk/id/eprint/39931 |
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