论文标题
在RIS辅助细胞网络中，EMF感知的MU-MIMO波束形成
EMF-Aware MU-MIMO Beamforming in RIS-Aided Cellular Networks
论文作者
论文摘要
可重新配置的智能表面（RISS）是新兴的第六代（6G）技术之一，他们有望通过添加人工传播路径来改善发射机和接收器之间的链接预算。在这种重新配置的繁殖环境中，下行链路（DL）多用户多输入多输出（MU-MIMO）为蜂窝网络带来了能力提高。它从MIMO系统提供的空间维度中受益，可以通过应用适当的波束成形（BF）方案同时传输独立的数据流向相同无线电资源的多个用户。但是，在某些情况下，长期服务相同的用户子集可能会导致一些不希望的区域，在这种情况下，平均电磁场暴露（EMFE）超过了监管限制。为了应对这一挑战，我们在本文中提出了一个新颖的电磁场（EMF）意识到的MU-MIMO BF方案，该方案旨在优化RIS辅助细胞网络中EMF约束下的整体容量。
Reconfigurable Intelligent Surfaces (RISs) are one of the key emerging 6th Generation (6G) technologies that are expected to improve the link budgets between transmitters and receivers by adding artificial propagation paths. In such re-configured propagation environment, Downlink (DL) Multi-User Multi-Input Multi-Output (MU-MIMO) brings capacity improvement to cellular networks. It benefits from the spatial dimension offered by MIMO systems to enable simultaneous transmission of independent data streams to multiple users on the same radio resources by applying appropriate Beamforming (BF) schemes. However, in some cases, serving the same subset of users for a long period of time may cause some undesired regions where the average Electromagnetic Field Exposure (EMFE) exceeds the regulatory limits. To address this challenge, we propose in this paper a novel Electromagnetic Field (EMF) aware MU-MIMO BF scheme that aims to optimize the overall capacity under EMF constraints in RIS-aided cellular networks.
