In Urban Environment Vehicle-to-Vehicle Channel Modeling Based on Geometric Random Model

被引：0
|
作者：
Mao J.-M. [1 ]
Wei Z.-X. [1 ]
Xing B.-Q. [1 ]
Liu K.-Z. [1 ]
Zhao Y. [1 ]
机构：
[1] School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing
来源：
Beijing Youdian Daxue Xuebao/Journal of Beijing University of Posts and Telecommunications | 2021年 / 44卷 / 02期
关键词：
Channel characteristics; Geometric random model; Urban street; Y-shaped scattering model;
D O I：
10.13190/j.jbupt.2020-251
中图分类号：
学科分类号：
摘要：
In complex and changeable urban environment, the communication channel is interfered by various obstacles. The model of the vehicle-to-vehicle channel in the intersection scene is built. In this scene, the scatterers are not uniformly distributed. A Y-shaped random model suitable for intersections is proposed. Based on the ellipsoid range limited by the maximum time delay, the geometric random model is established for the vehicle scatterer on the road and the building scatterers beside the road. In this model, the static scatterers on both sides of the road is assumed to be exponentially distributed in the building area, and the moving scatterers are uniformly distributed in the lane area. In order to get close to the real environment, the discrete Markov process is used to simulate the time-varying characteristics of the scatterers. The arrival angle, the delay power spectrum, the time autocorrelation function, the space cross-correlation function, and the Doppler power spectrum density are deduced and simulated. In addition, the random channel model based on geometry has enough generality and can be used to model communication scenes in various urban environments by adjusting channel parameters. © 2021, Editorial Department of Journal of Beijing University of Posts and Telecommunications. All right reserved.
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页码：124 / 130
页数：6
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