QELi-Fi: Public Project Summary for a Modular Optical Wireless Communication and Coordination Architecture

QELi-Fi is a modular optical wireless communication and coordination architecture designed for resilient indoor and controlled-environment networks. In its public-facing form, the project combines three high-level layers: optical wireless communication, optical wireless power transfer (OWPT), and an intelligent coordination layer for multi-node environments. The architecture is structured as a unified framework for data, energy, and spatial coordination rather than as a single isolated device. One of the core public branches within the broader QELi-Fi ecosystem is RSI (Residual Signal Intelligence), a receiver-side degraded-signal intelligence direction for optical links. RSI is framed around the problem of extracting usable residual structure from imperfect optical receptions when clean recovery is not guaranteed. Additional public-facing directions include coordination and extension concepts for challenging environments, including high-level underwater research applications. This record is a sanitized public summary intended for technical archiving, authorship traceability, and collaboration-facing visibility. It shares the project’s architectural vision, modular structure, research direction, and public-safe technical framing, while intentionally excluding proprietary implementation details, restricted subsystem internals, security-sensitive architecture, operationally exploitable information, and pre-patent material. At its current public level, QELi-Fi may be understood as a structured deep-tech R&D architecture suitable for academic visibility, technical review, public archiving, and early-stage collaboration discovery.