Study of the exposure of 1 year-old infant to 3G tablet and femtocell using Polynomial Chaos theory

Wireless communication systems are intensively used, even though the concern about the exposure to Radio-Frequency electromagnetic fields (RF-EMF). Furthermore, in the last years, there has been an increasing use of novel RF devices among very young population. An assessment of the exposure of children to these sources in different exposure configurations is therefore needed. In this framework, a study on the exposure of a 1-year-old child to a 3G tablet emitting at 1940 MHz in uplink mode and to a 3G femtocell emitting at 2100 MHz in downlink mode has been carried out, separately. In order to estimate the variability of the exposure due to the variability of position of these devices with respect to the baby, stochastic dosimetry, based on the Polynomial Chaos (PC) theory, has been used to build surrogate models of the SAR induced in the child at a low computational cost.