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双反射面信道中6极化MIMO信道特性

朴大志 陈鹏

朴大志, 陈鹏. 双反射面信道中6极化MIMO信道特性[J]. 北京航空航天大学学报, 2015, 41(10): 1801-1806. doi: 10.13700/j.bh.1001-5965.2015.0215
引用本文: 朴大志, 陈鹏. 双反射面信道中6极化MIMO信道特性[J]. 北京航空航天大学学报, 2015, 41(10): 1801-1806. doi: 10.13700/j.bh.1001-5965.2015.0215
PIAO Dazhi, CHEN Peng. Characteristics of hexapolarized MIMO channel in two-mirror channel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(10): 1801-1806. doi: 10.13700/j.bh.1001-5965.2015.0215(in Chinese)
Citation: PIAO Dazhi, CHEN Peng. Characteristics of hexapolarized MIMO channel in two-mirror channel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(10): 1801-1806. doi: 10.13700/j.bh.1001-5965.2015.0215(in Chinese)

双反射面信道中6极化MIMO信道特性

doi: 10.13700/j.bh.1001-5965.2015.0215
基金项目: 国家自然科学基金(61201235);北京高等学校青年英才计划(YETP0595)
详细信息
    通讯作者:

    朴大志(1977-),女,辽宁营口人,教授,piaodazhi@hotmail.com,主要研究方向为多极化MIMO信道建模理论和天线设计.

  • 中图分类号: TN929.5

Characteristics of hexapolarized MIMO channel in two-mirror channel

  • 摘要: 为研究双反射面信道中多径丰富程度对6极化多输入多输出系统(HPMIMO)信道容量和特征值的影响,设计了一个工作于28GHz的共点正交的双极化天线,此天线由一个电偶极子和一个环天线组成,并以此天线为基本单元,得到了一个虚拟的共点正交6极化MIMO天线.从计算结果中发现,随着两个反射面间夹角的减小,信道中的多径数目逐渐增加,对应的信道容量也逐渐增加,可达到单极化系统信道容量的2.47~5.10倍.夹角为0°时多径数目趋于无穷的情况比自由空间(FS)和夹角为180°等多径较少的情况下的6极化MIMO信道容量会有30%~45%的增加.此外,在自由空间信道和双反射面信道中,6极化MIMO信道矩阵都会得到6个非零特征值,但在多径数目较少时,有一些特征值会接近于0.因此,为了获得足够高的信道复用和分集增益,多极化MIMO天线需要工作在多径较为丰富的信道中.

     

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出版历程
  • 收稿日期:  2015-04-09
  • 修回日期:  2015-06-01
  • 网络出版日期:  2015-10-20

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