Hybrid Ray-Tracing/FDTD Method for Human Exposure Evaluation of a Massive MIMO Technology in an Industrial Indoor Environment

IEEE Access

Sergei Shikhantsov¹  Guy Torfs¹  Gunter Vermeeren¹  Piet Demeester¹  Emmeric Tanghe²  Wout Joseph²  Luc Martens²  Arno Thielens² 

[1]Department of Information Technology, Ghent University&x2013

[2]imec, Ghent, Belgium

关键词: 5G;    massive MIMO;    EMF exposure;   

DOI  :  10.1109/ACCESS.2019.2897921

来源: DOAJ

【 摘 要 】

This paper presents a numerical approach for massive multiple-input multiple-output (MIMO) human exposure assessment. It combines ray-tracing for the estimation of the wireless channel and the finite-difference time-domain method to simulate the exposure of a realistic human phantom. We apply it to estimate the exposure in a model of an industrial indoor environment with a single massive MIMO base station (BS). The exposure scenarios include line-of-sight and non-line-of-sight propagation with the BS using equal gain transmission precoding at 3.5 GHz. Calculated channel parameters are discussed in comparison with the data available in the literature. The exposure in the phantom's head is evaluated in terms of the peak-spatial specific absorption rate averaged over a 10-g cube and referenced to the free-space time-averaged Poynting vector magnitude at the same location.

【 授权许可】

Unknown