Impact of Small-Cell Deployment on Combined Uplink and Downlink RF Exposure Compared to the Status Quo in Mobile Networks

Abstract

Overview

As advancements in cellular technologies continue, the deployment of small cells and mobile road side units is becoming increasingly common to enhance network performance. This study investigates how these deployments affect human RF exposure in mobile networks.

Findings

• A new method was proposed to assess combined uplink and downlink RF exposure through specific absorption rates in contexts with newly installed small cells.
• Comparative results between small cell and traditional macro cell scenarios showed a decrease in total RF exposure for users connected to small cells, despite an increase in downlink exposure.
• The reduction in uplink transmission power, thanks to improved link conditions in small cells, contributes significantly to decreased overall exposure.

Conclusion

The study finds that small cell deployments not only meet the demands for better network capabilities like increased data rates and wider coverage but also minimize RF exposure to users. It suggests potential expansions of the method for different exposure durations and adaptations for 5G and indoor small cell scenarios.