| 室内楼梯环境2.6 GHz频段传播特性测试与建模 |
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| 引用本文： | 刘洋,吕文俊,朱洪波.室内楼梯环境2.6 GHz频段传播特性测试与建模[J].南京邮电大学学报(自然科学版),2014,34(6):28-33. |
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| 作者姓名： | 刘洋 吕文俊 朱洪波 |
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| 作者单位： | 南京邮电大学江苏省无线通信重点实验室,江苏南京,210003 |
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| 基金项目： | 国家重点基础发展研究计划(973计划)，江苏省研究生培养创新工程 |
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| 摘 要： | 在室内楼梯环境中,测量了2.6 GHz频段的无线传播特性.基于大量的实测数据,建立了路径损耗模型并得到阴影效应Xσ的统计特性,发现Xσ均值和方差随天线高度变化而变化.通过对测得的频率响应做傅里叶反变换,得到均方根（RMS）时延扩展的统计特性,发现其均值与方差也是随天线高度变化而变化.进一步研究均方根时延扩展和频率相干带宽之间的负相关性,得出它们之间满足幂指数关系式.这种传播模型能够为LTE通信系统的设计提供重要依据.
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| 关 键 词： | 路径损耗 阴影效应 RMS时延扩展 相干带宽 |
Measurement and Modeling of Radio Propagation Characteristics in Indoor Stair Environment at 2.6 GHz Band |
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| LIU Yang,L Wen-jun,ZHU Hong-bo.Measurement and Modeling of Radio Propagation Characteristics in Indoor Stair Environment at 2.6 GHz Band[J].Journal of Nanjing University of Posts and Telecommunications,2014,34(6):28-33. |
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| Authors: | LIU Yang L Wen-jun ZHU Hong-bo |
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| Institution: | LIU Yang,L(U) Wen-jun,ZHU Hong-bo |
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| Abstract: | Radio Propagation characteristics in the indoor stair environment are measured at 2. 6GHz band. According to the measured data, a novel path loss model is established and the statistic characteristics of shadow fading,Xσ, are studied. The mean and standard variance of X changes with the antenna heights. The statistic characteristics of root mean square （RMS） of the delay spread are achieved through the inverse Fourier transform of the measured frequency response. Moreover, the negative correlation between the RMS delay spread and the shadow fading is studied, and an empirical power exponent expression is obtained. The model can be used for the design of the LTE communication system. |
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| Keywords: | 2 6 GHz path loss shadow fading RMS delay spread correlation bandwidth |
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