Experimental Demonstration of Integrated Optical Wireless Sensing and Communication

• Published in: Journal of lightwave technology Vol. 42; no. 20; pp. 7070 - 7084
• Main Authors: Shi, Lina, Liu, Ziqi, Bechadergue, Bastien, Guan, Hongyu, Chassagne, Luc, Zhang, Xun
• Format: Journal Article
• Language: English
• Published: IEEE 15-10-2024; Institute of Electrical and Electronics Engineers (IEEE)/Optical Society of America(OSA)
• Subjects: Adaptive optics; Engineering Sciences; Integrated sensing and communication (ISAC); Light emitting diodes; Modulation; multiband carrierless amplitude and phase (<named-content xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" content-type="math" xlink:type="simple"> <inline-formula> <tex-math notation="LaTeX"> m</tex-math> </inline-formula> </named-content>-CAP); Optical fiber sensors; Optical fibers; Optical receivers; optical wireless communications (OWC); received signal strength (RSS); Wireless communication; Wireless communication; Optical fibers; Optical fiber sensors; Multiband carrierless amplitude and phase (m-CAP); Optical wireless communications (OWC); Received signal strength (RSS); Modulation; Integrated sensing and communication (ISAC); Light emitting diodes; Adaptive optics; Optical receivers
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2024.3415417

Whilethe contours of 6G are still being defined, integrated sensing and communication (ISAC) has been identified by the International Telecommunications Union (ITU) as a key feature of next-generation wireless communications. Given the maturity already demonstrated for data transmission on the one hand, and positioning on the other hand, optical wireless communications (OWC) could offer promising solutions for ISAC implementation, especially in indoor scenarios. In this paper, we propose and implement an OWC-based ISAC system that relies on multi-band carrierless amplitude and phase (<inline-formula><tex-math notation="LaTeX">m</tex-math></inline-formula>-CAP) modulation associated with received signal strength (RSS)-based positioning to achieve data transmission and localization from the same signal. This <inline-formula><tex-math notation="LaTeX">m</tex-math></inline-formula>-CAP/RSS system is deployed in a 1.2 <inline-formula><tex-math notation="LaTeX">\times\, 1.2\,\times</tex-math></inline-formula> 2.16 m<inline-formula><tex-math notation="LaTeX">^{3}</tex-math></inline-formula> room using four access points installed on the ceiling, and can provide a communication link at a data rate of 12 Mbps with a bit error rate of less than <inline-formula><tex-math notation="LaTeX">3.8\times 10^{-3}</tex-math></inline-formula> to any user in a reception plane 20 cm above the ground, while estimating its position with an error of less than 5.9 cm in 90% of cases.