Abstract

The fifth-generation (5G) wireless communication deployment has already begun. However, some technical problems that need to be updated and further technological improvements are needed. In 5G NR (New Radio), the wide ranges of radio spectrum, from 30 to 300 GHz and 0.1 to 10 THz, referred to as millimeter waves (mm Waves) and sub-terahertz respectively, remain unemployed. These ranges can offer a great opportunity to cope with the huge expansion in data and connectivity in today’s mobile society. For this concern, this paper provides an in-depth statistical study of millimeter wave propagation candidates for 5G/6G systems (28, 38, 60, 73, 100, and 120 GHz) based on different scenarios for outdoor Urban Microcell (UMi) channels with various scenarios especially the geometrical parameters (Co-Pol/X-Pol, SISO/SIMO/MIMO), and also the environmental conditions (LOS/NLOS, rain rate, temperature and humidity for an urban Microcell). The results indicated that the 38 and 73 GHz channels are quite tolerant to the impact of deteriorating environmental conditions and geometrical parameter variations, while the 60, 100 and 120 GHz channels are more affected. In terms of path loss (PL) and path loss exponent (PLE), the omnidirectional power delay profile (OPDP) showed improved performance over the directional power delay profile (DPDP) for all channels.

中文翻译：

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5G/6G毫米波信道不同场景统计分析

摘要

第五代（5G）无线通信部署已经开始。但是，一些技术问题需要更新和进一步的技术改进。在 5G NR（新无线电）中，从 30 到 300 GHz 和 0.1 到 10 THz 的广泛无线电频谱，分别称为毫米波 (mm Waves) 和亚太赫兹，仍然没有被使用。这些范围可以提供一个很好的机会来应对当今移动社会中数据和连接的巨大扩展。针对这一问题，本文基于室外城市微蜂窝 (UMi) 信道的不同场景，对 5G/6G 系统（28、38、60、73、100 和 120 GHz）的毫米波传播候选进行了深入的统计研究各种场景，尤其是几何参数（Co-Pol/X-Pol、SISO/SIMO/MIMO），以及环境条件（城市微蜂窝的 LOS/NLOS、降雨率、温度和湿度）。结果表明，38 和 73 GHz 信道对环境条件恶化和几何参数变化的影响具有相当的耐受性，而 60、100 和 120 GHz 信道受到的影响更大。在路径损耗 (PL) 和路径损耗指数 (PLE) 方面，全向功率延迟分布 (OPDP) 显示出优于所有通道的定向功率延迟分布 (DPDP) 的性能。