Publication
Piezoelectric Beam Path Modulation for Visible Light Communication
Matthias Rüb; Jan Herbst; Christoph Lipps; Hans Dieter Schotten
In: Proceedings of the 2023 International Symposium on Networks, Computers and Communications (ISNCC). International Symposium on Networks, Computers and Communications (ISNCC-2023), October 23-26, Doha, Qatar, IEEE Xplore, 2023.
Abstract
Within the development of Beyond 5G and Sixth
Generation (6G) wireless systems new communication technologies
keep pushing toward high frequencies up to visible light
to reduce interference and increase data rates. Many different
modulation methods are available, and it is not clear yet which
technique will be represented most frequently in future Visible
Light Communication (VLC). As more and more demanding
tasks are left to Artificial Intelligence and machines in the
industry as well as in healthcare, it is essential to add further
layers of resilience and security to off-the-shelf state-of-the-art
VLC systems, regardless of the underlying modulation method.
Therefore, in this work, two methods to modulate the physical
beam path of a narrow laser beam utilizing piezoelectric mirror
actuators, which can be implemented at a later stage onto
existing VLC systems are proposed. While piezoelectric systems
are established for specific tasks like beam stabilization in
laser physics, the application in a modulation scheme for data
transmission is new. The proposed concept is evaluated in the
scope of upcoming wireless solutions including challenges and
performance predictions. Piezoelectric beam path modulation is
identified as a flexible method to enhance existing VLC systems
with an additional layer of resilience and, when paired with
appropriate intrusion detection mechanisms, improving security
likewise.