| 李 兵,张晓艺,曾文波,韩 睿,何怡刚.基于多簇的几何随机信道建模与仿真[J].电子测量与仪器学报,2020,34(4):72-78 |
| 基于多簇的几何随机信道建模与仿真 |
| Modeling and simulation of geometric random channel based on multi-cluster |
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| DOI： |
| 中文关键词: 车载通信 几何随机 散射簇 信道模型 相关函数 |
| 英文关键词:vehicle communication geometric random scattering cluster channel model correlation function |
| 基金项目::国家自然科学基金面上项目 ( 51777050)、国家重大科学仪器设备开发项目 ( 2016YFF0102200)、 装备预先研究重点基金
(41402040301)、湖南省自然科学基金面上项目(2017JJ2080,2018JJ5029)资助 |
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| 中文摘要: |
| 随着智能交通系统(ITS)的不断发展,车载通信作为其关键技术日益受到关注。 无线信道作为车载通信的传播途径,其
特性分析十分重要。 针对移动轿车经过基站时的信号传播模型进行研究,在散射簇的理论基础上建立了适用于大规模多输入
多输出(MIMO)信道的窄带单环模型。 通过设置符合实际场景的散射簇参数来模拟和分析信道,模型会更加符合实际信道特
征,比经典单环模型有更好的评估效果。 在仿真模型中,主要研究了信道的时间自相关函数(ACF)、空间互相关函数和频率互
相关函数(FCF)等特性。 同时,对不同的散射簇场景进行了对比分析,证明本模型更强的实用性。 |
| 英文摘要: |
| With the continuous development of intelligent transportation systems ( ITS ), vehicular communication, as its vital
technology, has received increasing attention. As the propagation channel of vehicular communication, the characteristic analysis of
wireless channel is fundamental. This paper studies the signal propagation model of a mobile car passing through a base station. Based
on the theory of scattering clusters, a narrowband single-loop model suitable for large-scale multiple-input multiple-output ( MIMO)
channels is established. By setting the scattering cluster parameters that match the actual scene to simulate and analyze the channel, the
model will be more in line with the characteristics of the actual channel and have a better evaluation effect than the classic single-loop
model. In the simulation model, the time autocorrelation function ( ACF), spatial cross-correlation function and frequency crosscorrelation function (FCF) of the channel are mainly studied. At the same time, a comparative analysis of different scattering cluster
scenes proves that the model is more practical. |
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