STATISTICAL APPROACH FOR HUMAN ELECTROMAGNETIC EXPOSURE ASSESSMENT IN FUTURE WIRELESS ATTO-CELL NETWORKS

Area of Science:

• Electromagnetic field (EMF) exposure assessment
• Wireless communication technologies
• Human health and safety

Background:

• Ultra-dense networks, such as ATTO-cells, are a prospective 5G technology.
• Understanding human exposure to radiation from these networks is crucial for safety.

Purpose of the Study:

• To numerically estimate human electromagnetic exposure from ATTO-cell floors.
• To evaluate the safety of ATTO-cell technology based on established exposure limits.

Main Methods:

• A statistical approach using finite difference time domain (FDTD) simulations was employed.
• The method accounted for antenna phase variations and utilized numerous exposure evaluations.
• Exposure was quantified using peak-spatial 10-g SAR average (psSAR10g).

Main Results:

• The average human exposure level was approximately 4.9 mW/kg, reaching 7.6 mW/kg in 5% of cases.
• The maximum psSAR10g value recorded was around 21.2 mW/kg.
• Exposure levels were significantly below the ICNIRP general public (4 W/kg) and occupational (20 W/kg) exposure limits.

Conclusions:

• ATTO-cell floors demonstrate a potential for low human electromagnetic exposure.
• The findings suggest ATTO-cell technology is a viable candidate for future 5G deployments.
• The proposed statistical FDTD method provides an efficient way to estimate exposure in complex scenarios.