Wi-Fi-Based Human Presence Detection Using Commodity Laptops
A novel human presence detection (HPD) solution has been introduced by researchers, utilizing only the built-in Wi-Fi capabilities of standard laptops, thereby removing the necessity for external sensors or cameras. This technique, known as Range-Filtered Doppler Spectrum (RF-DS), employs range-selective filtering within the Channel Impulse Response (CIR) domain prior to conducting Doppler analysis, allowing for a focus on relevant spatial areas. This method facilitates both range-selective and temporally windowed detection of users while mitigating privacy issues linked to camera systems. Detailed in arXiv:2603.10845v3, which was submitted on March 26, 2025, the technique utilizes monostatic Wi-Fi sensing without needing additional devices or access points, aiming to enhance power management and security in everyday gadgets.
Key facts
- First HPD solution using only built-in Wi-Fi hardware on commodity laptops
- No external sensors, access points, or additional devices required
- Introduces Range-Filtered Doppler Spectrum (RF-DS) technique
- Applies range-area filtering in CIR domain before Doppler analysis
- Enables range-selective and temporally windowed detection
- Addresses privacy concerns of camera-based approaches
- Aims to enable intelligent power management and security features
- Published on arXiv with ID 2603.10845v3
Entities
Institutions
- arXiv