# Trained-once device-free crowd counting and occupancy estimation using WiFi: A Doppler spectrum based approach

> Research article (2016 IEEE 12th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2016) · cited 93× · AI/ML

**Wikidata**: [openalex:W2560305784](https://www.wikidata.org/wiki/openalex:W2560305784)  
**Source**: https://4ort.xyz/entity/trained-once-device-free-crowd-counting-and-occupancy-estimation-using-wifi-a-doppler-spectrum-based-approach