Experimental demonstration of multiple-inputs multiple-outputs OFDM/OQAM visible light communications

Bangjiang Lin; Xuan Tang; Zabih Ghassemlooy; Chun Lin; Min Zhang

doi:10.1117/1.OE.56.10.106106

Experimental demonstration of multiple-inputs multiple-outputs OFDM/OQAM visible light communications

Bangjiang Lin^*, Xuan Tang, Zabih Ghassemlooy, Chun Lin, Min Zhang

^*Corresponding author for this work

Northumbria University

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

We experimentally demonstrate a 2×2 optical multiple-inputs multiple-outputs (MIMO) visible light communications system based on the modified orthogonal frequency-division multiplexing/offset quadrature amplitude modulation scheme. The adjacent subcarrier frequency-domain averaging (ASFA) with the full-loaded (FL) and half-loaded (HL) preamble structures is proposed for demultiplexing and mitigating the intrinsic imaginary interference (IMI) effect. Compared with the conventional channel estimation (CE) method, ASFA offers improved transmission performance. With the FL method, we obtain more accurate MIMO CE to mitigate the IMI effect and the optical noise compared to the HL method.

Original language	English
Article number	106106
Journal	Optical Engineering
Volume	56
Issue number	10
DOIs	https://doi.org/10.1117/1.OE.56.10.106106
Publication status	Published - 1 Oct 2017

Keywords

multiple-inputs multiple-outputs
offset quadrature amplitude modulation
orthogonal frequency-division multiplexing access
visible light communications

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10.1117/1.OE.56.10.106106

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title = "Experimental demonstration of multiple-inputs multiple-outputs OFDM/OQAM visible light communications",

abstract = "We experimentally demonstrate a 2×2 optical multiple-inputs multiple-outputs (MIMO) visible light communications system based on the modified orthogonal frequency-division multiplexing/offset quadrature amplitude modulation scheme. The adjacent subcarrier frequency-domain averaging (ASFA) with the full-loaded (FL) and half-loaded (HL) preamble structures is proposed for demultiplexing and mitigating the intrinsic imaginary interference (IMI) effect. Compared with the conventional channel estimation (CE) method, ASFA offers improved transmission performance. With the FL method, we obtain more accurate MIMO CE to mitigate the IMI effect and the optical noise compared to the HL method.",

keywords = "multiple-inputs multiple-outputs, offset quadrature amplitude modulation, orthogonal frequency-division multiplexing access, visible light communications",

author = "Bangjiang Lin and Xuan Tang and Zabih Ghassemlooy and Chun Lin and Min Zhang",

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T1 - Experimental demonstration of multiple-inputs multiple-outputs OFDM/OQAM visible light communications

AU - Lin, Bangjiang

AU - Tang, Xuan

AU - Ghassemlooy, Zabih

AU - Lin, Chun

AU - Zhang, Min

PY - 2017/10/1

Y1 - 2017/10/1

N2 - We experimentally demonstrate a 2×2 optical multiple-inputs multiple-outputs (MIMO) visible light communications system based on the modified orthogonal frequency-division multiplexing/offset quadrature amplitude modulation scheme. The adjacent subcarrier frequency-domain averaging (ASFA) with the full-loaded (FL) and half-loaded (HL) preamble structures is proposed for demultiplexing and mitigating the intrinsic imaginary interference (IMI) effect. Compared with the conventional channel estimation (CE) method, ASFA offers improved transmission performance. With the FL method, we obtain more accurate MIMO CE to mitigate the IMI effect and the optical noise compared to the HL method.

AB - We experimentally demonstrate a 2×2 optical multiple-inputs multiple-outputs (MIMO) visible light communications system based on the modified orthogonal frequency-division multiplexing/offset quadrature amplitude modulation scheme. The adjacent subcarrier frequency-domain averaging (ASFA) with the full-loaded (FL) and half-loaded (HL) preamble structures is proposed for demultiplexing and mitigating the intrinsic imaginary interference (IMI) effect. Compared with the conventional channel estimation (CE) method, ASFA offers improved transmission performance. With the FL method, we obtain more accurate MIMO CE to mitigate the IMI effect and the optical noise compared to the HL method.

KW - multiple-inputs multiple-outputs

KW - offset quadrature amplitude modulation

KW - orthogonal frequency-division multiplexing access

KW - visible light communications

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DO - 10.1117/1.OE.56.10.106106

M3 - Article

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SN - 0091-3286

VL - 56

JO - Optical Engineering

JF - Optical Engineering

IS - 10

M1 - 106106

ER -

Experimental demonstration of multiple-inputs multiple-outputs OFDM/OQAM visible light communications

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Keywords

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