车对车三维信道建模及其空-时相关特性分析

曾文波; 何怡刚; 李兵; 时国龙; 赵锋

doi:10.11959/j.issn.1000-436x.2019115

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车对车三维信道建模及其空-时相关特性分析

学术论文 | 更新时间：2024-06-05

- 车对车三维信道建模及其空-时相关特性分析
- 3D channel modeling and space-time correlation analysis for V2V communications
- 通信学报 2019年40卷第6期页码：116-127
- 作者机构：
  
  合肥工业大学电气与自动化工程学院，安徽合肥 230009
- 作者简介：
  
  [ "曾文波（1994- ），男，湖南邵阳人，合肥工业大学博士生，主要研究方向为面向智能电网无线传感、无线通信测试关键技术、无线通信、无线传感的理论体系与技术架构、无线通信建模。" ]
  [ "何怡刚（1963- ），男，湖南邵阳人，博士，合肥工业大学教授、博士生导师，主要研究方向为智能电网、射频识别技术、通信信道建模与监测、复杂电磁分析与建模、虚拟仪器与智能信号处理。" ]
  [ "李兵（1974- ），男，湖南长沙人，博士，合肥工业大学副教授，主要研究方向为智能交通系统、射频识别技术、无线传感器网络和信号处理。" ]
  [ "时国龙（1988- ），男，安徽宣城人，合肥工业大学博士生，主要研究方向为无线通信信道建模、智能传感器信号处理、计算机软件和大数据应用。" ]
  [ "赵锋（1994- ），男，安徽宿州人，合肥工业大学硕士生，主要研究方向为智能交通系统、射频识别技术、无线传感器网络、信号处理。" ]
- 基金信息：
  
  国家重点研发计划基金资助项目(2016YFF0102200);国家自然科学基金资助项目(51637004);国家自然科学基金资助项目(51777050);国家自然科学基金资助项目(51577046);装备预先研究重点基金资助项目(41402040301);湖南省自然科学基金资助项目(2017JJ2080);中央高校基本科研业务费基金资助项目(JDK16TD01)
- DOI：10.11959/j.issn.1000-436x.2019115
  中图分类号： TN929.5
- 网络首发：2019-06，
  
  纸质出版：2019-06-25
- 稿件说明：
移动端阅览
曾文波, 何怡刚, 李兵, 等. 车对车三维信道建模及其空-时相关特性分析[J]. 通信学报, 2019,40(6):116-127.

Wenbo ZENG, Yigang HE, Bing LI, et al. 3D channel modeling and space-time correlation analysis for V2V communications[J]. Journal on Communications, 2019, 40(6): 116-127.
曾文波, 何怡刚, 李兵, 等. 车对车三维信道建模及其空-时相关特性分析[J]. 通信学报, 2019,40(6):116-127. DOI： 10.11959/j.issn.1000-436x.2019115.

Wenbo ZENG, Yigang HE, Bing LI, et al. 3D channel modeling and space-time correlation analysis for V2V communications[J]. Journal on Communications, 2019, 40(6): 116-127. DOI： 10.11959/j.issn.1000-436x.2019115.

摘要

针对车对车（V2V）通信系统无线传播场景的复杂性，基于几何随机信道建模方法，提出了一种改进的3D MIMO V2V信道参考模型，依据方位角及仰角间确切的几何关系，导出了信道的空-时相关函数及空-多普勒功率谱密度，分析了信道相关特性影响因素。结果表明，信道相关性在非各向同性散射环境下与散射体分布、天线阵列角度密切相关，在各向同性散射环境下受天线阵列仰角影响，高车流密度场景信道空-时相关性明显低于低车流密度场景。同时，使用合理参数计算方法得到对应的仿真模型，仿真结果验证了模型的准确性。所提模型提高了通信系统分析及仿真效率，拓展了V2V信道模型研究及应用。

Abstract

To match complex wireless propagation scenarios

an improved 3D geometry-based stochastic model was proposed for vehicle to vehicle (V2V) communications channel.The exact relationship between the azimuth angle and elevation angle was taken into account and the corresponding space–time correlation function and space–Doppler power spectral density were derived

and the influence of important factors was analyzed.The observations and conclusions show that correlation characteristics is closely related to distribution of the scatterers and the angle of the antenna array under the non-isotropic scattering environment and is affected by the elevation angle of the antenna array under the isotropic scattering environment.And the space-time correlation characteristics in high vehicular traffic density is significantly lower than that in low vehicular traffic density.The corresponding simulation model is also derived by using a reasonable parameter calculation method.The simulation results validate the rationality of proposed model.It greatly improves analysis and simulation efficiency of V2V MIMO system.

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references

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