Fluorescent concentrator based MISO-NOMA for visible light communications.
Opt Lett
; 47(4): 902-905, 2022 Feb 15.
Article
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| MEDLINE
| ID: mdl-35167554
ABSTRACT
The experimental realization of multiple-input single-output (MISO) in visible light communication (VLC) has always been difficult due to dynamic channels, complex alignment, and limited capacity. We designed a quantum dot (QD) fluorescent concentrator combined with power domain multiplexing of a non-orthogonal multiple access (NOMA) scheme to provide an estimation-free MISO system. The system supports a large detection area of over 4â
cm2 and a sum rate up to 120â
Mbps over 2.3-m free space, providing a promising connection for the Internet of things (IoT). The concentrator was further implemented in an underwater environment under insufficient incident power. A record data rate of 120 Mbps has been achieved in a 1.5-m underwater MISO system, with a mean bit error rate of 3.24 × 10-3, which is below the forward error correction criterion.
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