"Optical Fingerprinting for LED Device Authentication in Optical Wireless Communication"

"This dataset provides raw optical wireless communication measurements for LED optical fingerprinting and device authentication research. It contains unprocessed OFDM-modulated signals collected from 20 surface-mount LED emitters under line-of-sight conditions in a fully enclosed darkroom environment. The measurements were acquired at multiple receiver positions within a three-dimensional spatial region to capture both device-specific characteristics and spatial channel variations. The experimental platform includes a USRP-based software-defined radio system, a photodetector receiver, and controlled LED biasing hardware. All recordings are stored in raw .dat format as continuous waveform data without denoising, synchronization, or feature extraction, allowing flexible offline processing for signal alignment, segmentation, feature engineering, and classification. The dataset is suitable for studies on LED device authentication, optical fingerprint discriminability, physical-layer security, and spatial robustness analysis in optical wireless communication systems."