| 28 GHz MIMO无线信道特性分析与研究 |
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| 引用本文： | 耿绥燕,范宁宁,王琦,李树,李博晗,赵雄文.28 GHz MIMO无线信道特性分析与研究[J].电波科学学报,2017,32(5):520-528. |
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| 作者姓名： | 耿绥燕 范宁宁 王琦 李树 李博晗 赵雄文 |
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| 作者单位： | 1.华北电力大学电气与电子工程学院, 北京 102206 |
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| 基金项目： | 电波环境特性及模化技术重点实验室开放研究基金专项资金开放课题 |
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| 摘 要： | 基于室内视距(Line-of-Sight，LOS)和非视距(Non-Line-of-Sight，NLOS)无线信道测量数据，研究了28 GHz多输入多输出(Multiple-Input Multiple-Output，MIMO)信道参数和容量特性.具体地说，分析了莱斯K因子、时延扩展、出发角和到达角的角度扩展等信道参数，研究了MIMO信道容量及空间相关性对容量的影响.结果表明:莱斯K因子、时延扩展以及角度扩展值取决于测量环境及场景；LOS条件下时延扩展的累积分布函数(Cumulative Distribution Function，CDF)曲线与正态分布拟合优于NLOS条件下的数据；MIMO天线空间相关性越大信道容量越小.本文结果可为28 GHz无线通信系统设计提供有用信息.
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| 关 键 词： | MIMO K因子 时延扩展 角度扩展 空间相关性 信道容量 |
| 收稿时间： | 2017-09-15 |
Characterization and analysis of 28 GHz MIMO Wireless Channels |
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| Affiliation: | 1.School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China2.School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, 100867, China |
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| Abstract: | In this paper,based on 28 GHz MIMO channel measurements performed for both line-of-sight (LOS) and non-line-of-sight (NLOS) scenarios,channel characteristics and capacity are analyzed.Specifically,Ricean K factor,delay spread,angle spread of departure and arrival are summarized,channel capacity and antenna spatial correlation on multiple-input multiple-output (MIMO) capacity are investigated.Results show that K factor,root mean square (RMS) delay spread and angle spreads depend on measurement environment and scenario,cumulative distribution function (CDF) curve of delay spread in LOS case fits better with normal distribution comparing with in NLOS case.The larger spatial correlation corresponds to smaller MIMO channel capacity.The results can be used for design of 28 GHz MIMO radio systems. |
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| Keywords: | MIMO K factor delay spread angle spread spatial correlation channel capacity |
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