移動散射體下的V2V信道相關性和多普勒譜特性研究

梁曉林; 趙雄文; 李亦天

doi:10.11999/JEIT160412

移動散射體下的V2V信道相關性和多普勒譜特性研究

doi: 10.11999/JEIT160412

1.
(華北電力大學電氣與電子工程學院北京 102206) ②(中國電波傳播研究所電波環(huán)境特性及?；夹g國防科技重點實驗室青島 266107) ③(東南大學移動通信國家重點實驗室南京 210096)

基金項目:

中國電波傳播研究所電波環(huán)境特性及模化技術國防科技重點實驗室(201400009)，東南大學移動通信國家重點實驗室開放研究基金(2016D09)，國家自然科學基金(61372051)

計量
- 文章訪問數(shù): 1611
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出版歷程
- 收稿日期: 2016-04-26
- 修回日期: 2016-09-06
- 刊出日期: 2017-03-19

Impact of Moving Scatterers in Channel Correlations and Doppler Spectral Densities for Vehicle-to-vehicle Communications

1.
(School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China)

Funds:

The Open Research Funds of National Key Laboratory of Electromagnetic Environment, China Research Institute of Radio Wave Propagation (201400009), The National Mobile Communications Research Laboratory, Southeast University (2016D09), The National Natural Science Foundation of China (61372051)

摘要

摘要: 該文首次提出兩種典型的移動散射體存在的車輛對車輛(V2V)的無線傳播信道模型，一種是基于一次散射發(fā)射(SBT)和一次散射接收(SBR)的信道，另一種是基于兩次散射(DB)的信道，并在這兩種模型的基礎上給出了同時包含一次散射發(fā)射，一次散射接收，兩次散射和視距(LOS)分量的信道模型。在假設移動散射體的運動速度和方向都隨機且運動速度較小和較大的散射體速度分別用指數(shù)分布和混合高斯分布來描述的情況下，給出了這些傳播信道的復增益，通過計算得到了信道的自相關函數(shù)(ACF)和多普勒功率譜密度(PSD)。文中還將理論計算得到的多普勒譜與已有文獻的測量結果進行了對比，兩者符合得較好。
- 車輛到車輛通信 /
- 移動散射體 /
- 自相關函數(shù) /
- 多普勒功率譜密度
Abstract: Two typical Vehicle-To-Vehicle (V2V) propagation channel models are proposed for the first time. One is that the channel is composed by Single-Bounce Transmit (SBT) and Single-Bounce Receive (SBR)components. The other is that the channel is composed by Double-Bounce (DB) components. Based on the two models, another model consisting of SBT, SBR, DB, and LOS components is proposed. It is assumed that the local scatterers move with random velocities in random directions and the velocity distributions of the moving scatterers with low and high speed are assumed to follow exponential and Gaussian Mixture (GM) distributions, respectively. The complex channel gains of the proposed V2V channel models are proposed, and the corresponding AutoCorrelation Function (ACF) and Doppler Power Spectral Density (PSD) are derived. The theoretical results are also compared with the available PSDs by measurements and good agreements are found between them.
- Vehicle-To-Vehicle (V2V) communication /
- Moving scatterers /
- AutoCorrelation Function (ACF) /
- Doppler Power Spectral Density (PSD)

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參考文獻(15)

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