Impact of Human Blockage on Dynamic Indoor Multipath Channels at 27 GHz
Impact of Human Blockage on Dynamic Indoor Multipath Channels at 27 GHz
复制标题
人为遮挡对 27 GHz 动态室内多径信道的影响
DOI：
10.1109/tap.2022.3161692
复制
发表时间：
2022
影响因子：
5.7
通讯作者：
U. Johannsen
中科院分区：
文献类型：
--
作者：
R. Schulpen;L. A. Bronckers;A. B. Smolders;U. Johannsen
人类阻塞及其动态是毫米波移动通信的潜在挑战。本文介绍了在 27 GHz 下对靠近动态移动终端的一个人体阻挡器以及远离移动终端的一个或多个动态人体阻挡器进行宽带测量的结果。当视线中的直接路径被阻挡时，测得的人体阻挡损失最大，但这种损失受到其他多径分量的限制。对于非视距通道，事实证明，人为阻塞损失通常可以忽略不计。所提出的测量结果表明，多径信道中的人为阻塞损耗比基于衍射和测量的模型中报告的要小得多，该模型忽略或最小化了除直接路径之外的所有多径分量的贡献。这表明室内无线信道的多径性质极大地限制了人类阻塞的影响。
Human blockage and its dynamics are potential challenges for millimeter-wave mobile communication. This paper presents the results of wideband measurements at 27 GHz with one human blocker close by a dynamic mobile terminal, as well as one or multiple dynamic human blockers further away from a mobile terminal. The measured human blockage loss is largest when the direct path in a line-of-sight is blocked, but this loss is limited by other multipath components. For non line-of-sight channels, it is shown that human blockage loss is typically negligible. The presented measurement results show that human blockage loss in multipath channels is much smaller than is reported in diffraction- and measurement-based models, which neglect or minimize the contribution of all multipath components other than the direct path. This suggests that the multipath nature of the indoor wireless channel highly limits the impact of human blockage.