Reconfigurable MIMO-based self-powered battery-less light communication system

Jose Ilton De Oliveira Filho; Abderrahmen Trichili; Omar Alkhazragi; Mohamed-Slim Alouini; Boon S. Ooi; Khaled Nabil Salama

doi:10.1038/s41377-024-01566-3

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Reconfigurable MIMO-based self-powered battery-less light communication system

Original Articles

- Reconfigurable MIMO-based self-powered battery-less light communication system
- Light: Science & Applications Vol. 13, Issue 10, Pages: 2300-2311(2024)
- Affiliations：
  
  1.Computer, Electrical and Mathematical Sciences & Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
  2.NEOM Institute for Ocean Science and Solutions, Neom, Thuwal, Saudi Arabia
- Author bio：
  
  Jose Ilton De Oliveira Filho (jose.deoliveirafilho@kaust.edu.sa)
- Funds：
- DOI：10.1038/s41377-024-01566-3
  CLC：
- Published：31 October 2024，
  
  Published Online：28 August 2024，
  
  Received：01 March 2024，
  
  Revised：18 July 2024，
  
  Accepted：05 August 2024
- Accepted：
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De Oliveira Filho, J. I. et al. Reconfigurable MIMO-based self-powered battery-less light communication system. Light: Science & Applications, 13, 2300-2311 (2024).
DOI：

De Oliveira Filho, J. I. et al. Reconfigurable MIMO-based self-powered battery-less light communication system. Light: Science & Applications, 13, 2300-2311 (2024). DOI： 10.1038/s41377-024-01566-3.

摘要

Abstract

Simultaneous lightwave information and power transfer (SLIPT)

co-existing with optical wireless communication

holds an enormous potential to provide continuous charging to remote Internet of Things (IoT) devices while ensuring connectivity. Combining SLIPT with an omnidirectional receiver

we can leverage a higher power budget while maintaining a stable connection

a major challenge for optical wireless communication systems. Here

we design a multiplexed SLIPT-based system comprising an array of photodetectors (PDs) arranged in a 3 × 3 configuration. The system enables decoding information from multiple light beams while simultaneously harvesting energy. The PDs can swiftly switch between photoconductive and photovoltaic modes to maximize information transfer rates and provide on-demand energy harvesting. Additionally

we investigated the ability to decode information and harvest energy with a particular quadrant set of PDs from the array

allowing beam tracking and spatial diversity. The design was explored in a smaller version for higher data rates and a bigger one for higher power harvesting. We report a self-powering device that can achieve a gross data rate of 25.7 Mbps from a single-input single-output (SISO) and an 85.2 Mbps net data rate in a multiple-input multiple-output (MIMO) configuration. Under a standard AMT1.5 illumination

the device can harvest up to 87.33 mW

around twice the power needed to maintain the entire system. Our work paves the way for deploying autonomous IoT devices in harsh environments and their potential use in space applications.

关键词

Keywords

references

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