Experimental Study of In-Body Devices Misalignment Impact on Light-Based In-Body Communications

Authors

Syifaul Fuada¹ , Mariella Särestöniemi¹ , Marcos Katz¹ , Simone Soderi² , Matti Hämäläinen¹

1. University of Oulu
2. IMT Lucca

Conference / event

Nordic Conference on Digital Health and Wireless Solutions, May 2024 (Oulu, Finland)

Poster summary

In this work, we experimentally demonstrate the impact of the in-body device misalignment on the OWC-based in-body communication system. Three cases were investigated: aligned systems and lateral and angular misalignments. We considered an 810 nm Near-infrared (NIR) LED as a transmitter because the optical signal of the mentioned wavelength propagates better than other wavelengths through biological tissues. First, the results reveal that optical power still reaches the receiver in an aligned reference case at a meat thickness of 40 mm. Second, the in-body device misalignment significantly degrades the optical power density received, which is more pronounced under lateral than angular conditions. These misalignment effects must be carefully considered for further system enhancement when using OWC for the in-body communication system.

Keywords

Biological tissue, Optical wireless communication, In-body device misalignment, In-body communication, Near-infrared, Ex vivo experiment

Research areas

Medicine, Bioengineering, Electrical Engineering

References

1. Fuada, S., Särestöniemi, M., Katz, M., Soderi, S., Hämäläinen, M. (2024). Experimental Study of In-Body Devices Misalignment Impact on Light-Based In-Body Communications. In: Särestöniemi, M., et al. Digital Health and Wireless Solutions. NCDHWS 2024. Communications in Computer and Information Science, vol 2084. Springer, Cham. https://doi.org/10.1007/978-3-031-59091-7_30

Funding

1. University of Oulu’s Infotech (No. CWC-NS 2406124)
2. the Research Council of Finland (former Academy of Finland) Profi6 funding, 6G-Enabling Sustainable Society (6GESS) the University of Oulu
3. the Research Council of Finland 6G Flagship Programme (No. 346208)

Supplemental files

No data provided

Additional information

Competing interests

No competing interests were disclosed.

Data availability statement

Data sharing not applicable to this poster as no datasets were generated or analyzed during the current study.

Creative Commons license

Copyright © 2024 Fuada et al. This is an open access work distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.