Impact Statement:The novel concept for joint light source identification and localization with subsequent interference suppression is of high practical relevance for a reconfigurable VLC ...Show More
Abstract:
This paper presents a novel concept for joint light source identification and localization (JLIL) with subsequent interference suppression using a liquid crystal display ...Show MoreMetadata
Impact Statement:
The novel concept for joint light source identification and localization with subsequent interference suppression is of high practical relevance for a reconfigurable VLC system. Compared to other work, the accuracy is not limited by the number or properties of the light sources. Also, the data rate is independent of the LCD filter frame rate. Furthermore, only the presented concept actively suppresses interference.
Abstract:
This paper presents a novel concept for joint light source identification and localization (JLIL) with subsequent interference suppression using a liquid crystal display (LCD)-based receiver. The JLIL concept is particularly suitable for multiple-input single-output visible-light-communication settings, where an LCD-based receiver must be able to identify a desired light source before suppressing interfering ones. Given a basic visible-light-communication setup, in a first step modifications required both on the transmitter and the receiver side are identified. Subsequently, the concept for LCD-based JLIL is introduced, and its performance is illustrated by means of simulation results. In this context, intersymbol interference effects are investigated and a known ambiguity problem is overcome. Finally, results of an experimental verification are reported as a proof of concept. It is shown that the derived simulation model accurately predicts measurement results. The latter confirm a virtually error-free light source identification and precise localization within system accuracy range. Furthermore, an improved peak detection is reported. Signal-to-noise ratio measurements suggest good performance for up to 3 \,\mathrm{m} using the developed hardware demonstrator.
Published in: IEEE Photonics Journal ( Volume: 16, Issue: 6, December 2024)