不同极化条件下28 GHz毫米波频段在地铁隧道中的多输入-多输出信道性能分析

刘玺

Analysis of MIMO Characteristics of 28 GHz Millimeter Wave in Metro Tunnel under Different Polarization Configuration

LIU Xi
摘要:
针对未来5G(第5代移动通信技术)毫米波应用于地铁隧道的特殊问题,通过现场实测试验与射线跟踪仿真试验,计算28 GHz毫米波在隧道环境中的信道相关性,得到了不同发射与接收机天线阵位置下、不同极化配置对多输入、多输出信道特性的影响。研究发现,仿真结果与现场实测结果匹配度高,验证了射线跟踪仿真试验的正确性。试验结果显示,采用HH(水平极化)时,在5G毫米波隧道通信中的多输入多输出信道性能更佳。
Abstracts:
Targeting the specific scenario of 5G millimeter wave applied in metro tunnel in the future, the channel correlations of 28 GHz millimeter wave in tunnel environment is calculated by field test and ray tracing simulation, and the influences of the antenna array position and different polarization configuration on the MIMO channel characteristics are obtained. Results show that simulation results are highly matching with field measurement results, validating the results of ray tracing simulation. Experiment results show that HH (horizontal polarization) encourages better MIMO performance in 5G millimeter wave communications in the tunnels.
引文 / Ref:
刘玺.不同极化条件下28GHz毫米波频段在地铁隧道中的多输入-多输出信道性能分析[J].城市轨道交通研究,2021,24(8):119.
LIU Xi.Analysis of MIMO characteristics of 28 GHz millimeter wave in metro tunnel under different polarization configuration[J].Urban Mass Transit,2021,24(8):119.
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