| 基于射线跟踪法的73 GHz走廊环境MIMO信道特性研究 |
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| 引用本文： | 邵斌,张仿琪,郑国莘.基于射线跟踪法的73 GHz走廊环境MIMO信道特性研究[J].移动通信,2020(2):76-81. |
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| 作者姓名： | 邵斌 张仿琪 郑国莘 |
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| 作者单位： | 上海大学特种光纤与光接入网重点实验室;同济大学磁浮交通工程技术研究中心;上海大学特种光纤与先进通信国际合作联合实验室;上海大学上海先进通信与数据科学研究院 |
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| 基金项目： | 国家自然科学基金面上项目(61871261)。 |
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| 摘 要： | 为了研究5G室内走廊环境的毫米波传输特性,通过射线跟踪仿真方法预测了室内走廊环境下73 GHz毫米波MIMO信道特性。介绍了实验的仿真环境和射线跟踪仿真预测的实验方法和具体参数设置。研究了室内走廊环境下73 GHz毫米波MIMO信道的路径损耗、RMS时延扩展和MIMO信道容量变化。发现了路径损耗斜率和RMS时延数值较小。研究MIMO容量随距离变化时发现,收发机沿走廊纵向方向中间处会产生容量峰值,主要是由于该处散射丰富,NLOS分量大。研究MIMO容量特性发现增大天线间距和增大天线阵列规模可以提升容量,但是采用4×64 Massive MIMO相对于采用4×4 MIMO时容量提升较为有限。实验证实了73 GHz毫米波MIMO可以用于室内走廊环境。
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| 关 键 词： | 5G毫米波 信道特性 MASSIVE MIMO |
Characteristics of MIMO Channel in 73 GHz Corridor Environment Based on Ray Tracing |
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| SHAO Bin,ZHANG Fangqi,ZHENG Guoxin.Characteristics of MIMO Channel in 73 GHz Corridor Environment Based on Ray Tracing[J].Mobile Communications,2020(2):76-81. |
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| Authors: | SHAO Bin ZHANG Fangqi ZHENG Guoxin |
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| Affiliation: | (Key Laboratory of Specialty Fiber Optics and Optical Access Networks,Shanghai University,Shanghai 200444,China;Tongji University Maglev Transportation Engineering R&D Center,Tongji University,Shanghai 201804,China;Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication,Shanghai University,Shanghai 200444,China;Shanghai Institute of Advanced Communication and Data Science,Shanghai University,Shanghai 200444,China) |
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| Abstract: | In order to study the millimeter-wave transmission characteristics of 5 G indoor corridor environment,the ray tracing simulation method is adopted to predict the characteristics of 73 GHz millimeter wave MIMO channels.This paper introduces the experimental simulation environment,the experimental methods and specific parameter settings of ray tracing simulation methods.Then the path loss,RMS delay spread and channel capacity variation of the 73 GHz millimeter wave MIMO channel in the indoor corridor environment are investigated,where the path loss slope and RMS delay are small.When the MIMO capacity changes with the distance,it is found that there is a peak capacity in the middle of the longitudinal direction of the corridor,mainly due to the rich scattering and NLOS components.It is also found that the capacity can be enhanced via increasing the antenna spacing and the antenna array sizes,while 4×64 Massive MIMO has limited capacity improvement compared with 4×4 MIMO.Experiments have shown that 73 GHz millimeter wave MIMO can be used in indoor corridor environments. |
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| Keywords: | 5G millimeter wave channel characteristics Massive MIMO |
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