Abstract: This paper introduces an innovative approach employing Visible Light Communication (VLC) to generate landmark-based routes and alert instructions, enhancing support for individuals during wayfinding activities. The system utilizes ceiling luminaries as transmitters, broadcasting map information, alerts, and path messages. Through real-time data collection by optical receivers, users are provided with the most efficient routes to navigate around congestion. Tetrachromatic identifier white sources are employed for lighting, featuring various data channels. Data is encoded, modulated, and transformed into light signals, with mobile optical receivers capturing and interpreting this information, allowing users to interact bidirectionally. The system calculates optimal routes for static or dynamic destinations, including buddy wayfinding services. Results demonstrate the system's capability to enable self-location, deduce travel direction, and facilitate efficient navigation towards both static and dynamic locations.

Keywords: Visible Light Communication (VLC), Geolocation, Indoor navigation, Bidirectional communication, Wayfinding, Optical sensors, Transmitter/Receiver

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