Associations between Individual and Geospatial Characteristics and Power of 4G Signals Received by Mobile Phones
This exposure assessment study analyzed smartphone-logged 4G LTE RSSI and GPS data from adults in France to identify determinants of downlink signal strength. RSSI varied with geospatial factors (distance to antennas, antenna density, urbanicity) and time of day, and was also influenced by technical smartphone parameters. The study reports an estimated electric field strength derived from RSSI, but notes high uncertainty in this conversion.
Key points
- The dataset included 1,969,913 RSSI/GPS records from 187 participants measured every 30 seconds over an average of 7.9 days.
- Mean LTE-RSSI was -79.3 dBm, and the derived electric field estimate was 0.12 V/m with high uncertainty.
- Closer distance to the nearest antenna and higher antenna density were associated with higher RSSI.
- RSSI tended to be lower in the evening and night, especially in urban areas.
- Technical phone characteristics (Android version and system-on-a-chip) affected RSSI measurements.
- Mobile network operator was not a significant determinant of RSSI in this analysis.
- The impact of proximity to antennas on RSSI was reported to be greater in rural settings.
Referenced studies & papers
Relevant papers in OpenMel
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AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
AI-generated summaries may be incomplete or incorrect. This content is for informational purposes only and is not medical advice.
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