基于Inverted-Parabolic分布的空间统计信道模型
TN911.6; 针对在非均匀散射体分布下信号到达角度、到达时间以及多普勒效应等信道参数估计的复杂性，提出一种合理的空间信道模型，并引入几何分割法导出基于散射体Inverted-Parabolic分布的空间统计信道模型。模型能方便地估计室外宏小区和微小区移动通信环境下各种重要的空时信道参数，如AOA、TOA概率分布密度函数和多普勒功率谱以及信号的空-时相关性。数值结果与均匀散射体圆模型和高斯散射体圆模型对比表明本模型的信道参数估计结果符合理论和经验，且与实测结果吻合较好。在基站设计采用指向性天线时研究了移动台MS的多普勒效应，修正了Clarke U-shaped经典模型，阐明了天线主瓣宽度2α...
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| Published in | 通信学报 no. 3; pp. 38 - 46 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
南京信息工程大学 气象探测与信息处理重点实验室，江苏 南京 210044
2014
日本国立新泻大学 工学部，新泻 950-2181%南京信息工程大学 气象探测与信息处理重点实验室,江苏 南京,210044 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-436X |
| DOI | 10.3969/j.issn.1000-436x.2014.03.005 |
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| Abstract | TN911.6; 针对在非均匀散射体分布下信号到达角度、到达时间以及多普勒效应等信道参数估计的复杂性，提出一种合理的空间信道模型，并引入几何分割法导出基于散射体Inverted-Parabolic分布的空间统计信道模型。模型能方便地估计室外宏小区和微小区移动通信环境下各种重要的空时信道参数，如AOA、TOA概率分布密度函数和多普勒功率谱以及信号的空-时相关性。数值结果与均匀散射体圆模型和高斯散射体圆模型对比表明本模型的信道参数估计结果符合理论和经验，且与实测结果吻合较好。在基站设计采用指向性天线时研究了移动台MS的多普勒效应，修正了Clarke U-shaped经典模型，阐明了天线主瓣宽度2α、空间模型参数D/R和MS移动参数影响信道参数的机理。 |
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| AbstractList | TN911.6; 针对在非均匀散射体分布下信号到达角度、到达时间以及多普勒效应等信道参数估计的复杂性，提出一种合理的空间信道模型，并引入几何分割法导出基于散射体Inverted-Parabolic分布的空间统计信道模型。模型能方便地估计室外宏小区和微小区移动通信环境下各种重要的空时信道参数，如AOA、TOA概率分布密度函数和多普勒功率谱以及信号的空-时相关性。数值结果与均匀散射体圆模型和高斯散射体圆模型对比表明本模型的信道参数估计结果符合理论和经验，且与实测结果吻合较好。在基站设计采用指向性天线时研究了移动台MS的多普勒效应，修正了Clarke U-shaped经典模型，阐明了天线主瓣宽度2α、空间模型参数D/R和MS移动参数影响信道参数的机理。 |
| Abstract_FL | Due to the complexity of calculation for the parameters of angle of arrival(AOA), time of arrival(TOA) and Doppler spectra(DS),etc., a proper geometrical statistical channel model was proposed with inverted-parabolic spatial distribution around mobile station(MS) by using geometric partitioning method. Closed-form expressions for probability density functions(PDF) of AOA ,TOA and DS in the outdoor macrocell and microcell wireless environments were derived. Compared with the uniform and Gaussian scatter density model, the observed results consist with previous theory and experience. In addition, the Doppler spectra at the MS was also presented and the Clarke U-shaped model was modified. Employing the channel model, the effect of directional antenna was analyzed with the main-lobe width 2αat the BS and D/R and . vφ. |
| Author | 徐冬冬 菊池久和 周杰 |
| AuthorAffiliation | 南京信息工程大学 气象探测与信息处理重点实验室，江苏 南京 210044; 日本国立新泻大学 工学部，新泻 950-2181%南京信息工程大学 气象探测与信息处理重点实验室,江苏 南京,210044 |
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| Author_FL | HISAKAZU Kikuchi ZHOU Jie XU Dong-dong |
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| DocumentTitle_FL | Geometrical statistical channel model with an Inverted-Parabolic spatial distribution |
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| Keywords | 电波传播 circular and elliptical scattering models 单反射圆模型/椭圆模型 geometrical channel model 多普勒效应 angle of arrival 到达时间 到达角度 time of arrival radio propagation Doppler spectra 空时信道模型 |
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| Title | 基于Inverted-Parabolic分布的空间统计信道模型 |
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