基于改进的狭窄街道MIMO多散射信道模型分析

doi:10.11959/j.issn.1000-436x.2017207

通信学报 ›› 2017, Vol. 38 ›› Issue (10): 146-156.doi: 10.11959/j.issn.1000-436x.2017207

基于改进的狭窄街道MIMO多散射信道模型分析

唐登洪¹,周杰^1,²,邵根富³,袁梅¹,范倩莹¹

¹ 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
² 日本国立新泻大学工学部电气电子工学科，日本新泻 950-2181
³ 杭州电子科技大学通信工程学院，浙江杭州 310000

修回日期:2017-05-19 出版日期:2017-10-01 发布日期:2017-11-16
作者简介:唐登洪（1991-），男，江苏盐城人，南京信息工程大学硕士生，主要研究方向为无线通信理论、MIMO信道建模等。|周杰（1964-），男，四川泸州人，南京信息工程大学教授、博士生导师，日本国立新泻大学访问教授，主要研究方向为移动通信理论、无线传感网络和无线接入网。|邵根富（1962-），男，浙江宁波人，杭州电子科技大学教授，主要研究方向为无线通信理论、信号处理与自动控制等。|袁梅（1992-），女，江苏南通人，南京信息工程大学硕士生，主要研究方向为移动通信理论、信号处理方法与技术等。|范倩莹（1992-），女，陕西西安人，南京信息工程大学硕士生，主要研究方向为气候变化与预测、气象探测与信息处理等。
基金资助:
国家自然科学基金资助项目(61471153);江苏省高校自然科学研究重大计划基金资助项目(14KJA510001)

Analysis of a modified MIMO multi-bounced channel model for narrow street environment

Deng-hong TANG¹,Jie ZHOU^1,²,Gen-fu SHAO³,Mei YUAN¹,Qian-ying FAN¹

¹ Key Laboratory of Meteorological Observation and Information Processing,Nanjing University of Information Science and Technology,Nanjing 210044,China
² Department of Electronic and Electrical Engineering,Niigata University,Niigata 950-2181,Japan
³ Department of Communication Engineering,Hangzhou Dianzi University,Hangzhou 310000,China

Revised:2017-05-19 Online:2017-10-01 Published:2017-11-16
Supported by:
The National Natural Science Foundation of China(61471153);Jiangsu Provincial Research Scheme of Nat-ural Science for Higher Education Institute(14KJA510001)

摘要/Abstract

摘要：

为建立更高效的移动端对端（mobile to mobile）通信系统，针对城市狭窄街道多入多出系统（MIMO,multiple input multiple output）移动传播环境，在经典椭圆模型（EBSBM,ellipse based single bounce model）基础上引入等效散射点概念，提出了改进的多跳散射信道模型。此模型将多跳散射路径通过几何变换等效为单点椭圆散射路径，研究了模型的空时频统计特性，推导出发射角（AOD,angle of departure）、到达角（AOA,angle of arrival）及多普勒频移（Doppler shift）等随机参数的概率密度函数（PDF,probability density function）的解析表达式，并进一步分析天线圆形阵列（uniform circular array）分布下的MIMO信道空间相关性及信道容量。仿真实验与以往模型及数据对比验证了所提出模型的有效性。

关键词: 移动端通信, 多入多出, 经典椭圆模型, 到达角, 多普勒频移

Abstract:

To establish scattering models that match realistic street transmission scenarios for more efficient M2M mobile communication systems,existing models mainly focus on single-scattering and double-scattering,while for narrow urban street environment,single-scattering assumption is rather restrictive.To overcome this problem,a modified multi-bounced channel model based on EBSBM was provided,in which the concept of equivalent scattering point is assumed.The multi-bounced propagation paths are considered as an one-bounced ellipse scattering path and characteristics of the model were further analyzed.General formulations of several important parameters such as the probability density function (PDF) of the angle-of-departure(AOD),angle-of-arrival (AOA) and Doppler shift were derived,which were applied to the performance of multiple-input-multiple-output（MIMO）system employing a circular array antenna.Doppler frequency distribution was also taken into account.The results show good agreement with the previously models,which validates the rationality of proposed model.

Key words: M2M communication, MIMO, EBSBM, angle of arrival, Doppler shift

中图分类号:

TN911.6

唐登洪,周杰,邵根富,袁梅,范倩莹. 基于改进的狭窄街道MIMO多散射信道模型分析[J]. 通信学报, 2017, 38(10): 146-156.

Deng-hong TANG,Jie ZHOU,Gen-fu SHAO,Mei YUAN,Qian-ying FAN. Analysis of a modified MIMO multi-bounced channel model for narrow street environment[J]. Journal on Communications, 2017, 38(10): 146-156.

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基于改进的狭窄街道MIMO多散射信道模型分析

Analysis of a modified MIMO multi-bounced channel model for narrow street environment

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