论文标题
基于SBR的THZ和大规模MIMO通信的SBR射线跟踪通道建模方法
An SBR Based Ray Tracing Channel Modeling Method for THz and Massive MIMO Communications
论文作者
论文摘要
Terahertz（THZ）通信和大量多输入多输出（MIMO）技术的应用已被证明对第六代（6G）通信系统非常重要，并获得了全球利益。在本文中，我们采用了与加速技术集成的射击和弹跳射线（SBR）方法，以建模THZ和大规模的MIMO频道。本文中的射线追踪（RT）模拟的结果，即出发角度（AOD），到达角度（AOA）和功率延迟曲线（PDP）在频率频段下由商业RT软件Wireless Insite（WI）支持的频段与WI一致。基于Kirchhoff散射效应对材料表面和在THZ频带处显示的大气吸收损失的效果，菲涅耳反射系数和自由空间衰减的经过修改的传播模型与测量结果一致。对于大量的MIMO，分析了通道容量和随机功率分布。结果表明，SBR方法在构建具有广泛功能和可接受的精度的大规模MIMO通道的确定性模型中的适用性。
Terahertz (THz) communication and the application of massive multiple-input multiple-output (MIMO) technology have been proved significant for the sixth generation (6G) communication systems, and have gained global interests. In this paper, we employ the shooting and bouncing ray (SBR) method integrated with acceleration technology to model THz and massive MIMO channel. The results of ray tracing (RT) simulation in this paper, i.e., angle of departure (AoD), angle of arrival (AoA), and power delay profile (PDP) under the frequency band supported by the commercial RT software Wireless Insite (WI) are in agreement with those produced by WI. Based on the Kirchhoff scattering effect on material surfaces and atmospheric absorption loss showing at THz frequency band, the modified propagation models of Fresnel reflection coefficients and free-space attenuation are consistent with the measured results. For massive MIMO, the channel capacity and the stochastic power distribution are analyzed. The results indicate the applicability of SBR method for building deterministic models of THz and massive MIMO channels with extensive functions and acceptable accuracy.
