# 3-D Indoor Positioning Based on Passive Radio Frequency Signal Strength Distribution

> Research article (IEEE Internet of Things Journal, 2023) · cited 15× · AI/ML

**Wikidata**: [openalex:W4361986876](https://www.wikidata.org/wiki/openalex:W4361986876)  
**Source**: https://4ort.xyz/entity/3-d-indoor-positioning-based-on-passive-radio-frequency-signal-strength-distribution