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首页> 外文期刊>International Journal of Environmental Research and Public Health >Impact of a Small Cell on the RF-EMF Exposure in a Train
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Impact of a Small Cell on the RF-EMF Exposure in a Train

机译：小型小区对火车中RF-EMF暴露的影响

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摘要

The deployment of a miniature mobile-phone base station or small cell in a train car significantly improves the coverage and the capacity of a mobile network service on the train. However, the impact of the small cell on the passengers’ exposure to radio-frequency electromagnetic fields (RF-EMF) is unknown. In this study, we assessed experimentally the RF-EMF exposure of a mobile-phone user who is either connected to the outdoor macrocell network or to an in-train small cell, while traveling on the train, by means of the absorbed-dose concept, which combines the base station downlink exposure with the mobile-phone uplink exposure. For Global System for Mobile Communications (GSM) technology at 1800 MHz, we found that by connecting to a small cell, the brain exposure of the user could realistically be reduced by a factor 35 and the whole-body exposure by a factor 11.
机译：在火车车厢中部署微型移动电话基站或小型蜂窝可显着提高火车上移动网络服务的覆盖范围和容量。但是，小基站对乘客暴露于射频电磁场（RF-EMF）的影响尚不清楚。在这项研究中，我们通过吸收剂量的概念，通过实验评估了在火车上行驶时连接到室外宏小区网络或火车上小型小区的移动电话用户的RF-EMF暴露，它结合了基站下行链路曝光和手机上行链路曝光。对于1800 MHz的全球移动通信系统（GSM）技术，我们发现通过连接到一个小型小区，实际上可以将用户的大脑暴露降低35倍，将全身暴露降低11倍。

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