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

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


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 languageEnglish
Article number106106
JournalOptical Engineering
Issue number10
Publication statusPublished - 1 Oct 2017


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