V2V Channel Modeling at 5.2 GHz for Highway Environment  

作　　者：Suying Jiang Wei Wang Ibrahim Rashdan 

机构地区：[1]School of Information Engineering,Chang’an University,Xi’an 710064,China [2]Institute of Communications and Navigation,German Aerospace Center(DLR),Oberpfaffenhofen 82234,Germany

出　　处：《China Communications》2022年第11期112-128,共17页中国通信（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61871059);Scientific Innovation Practice Project of Postgraduates of Chang’an University(No.300103722006).

摘　　要：To design and evaluate vehicle-to-vehicle(V2V)communication systems in intelligent transportation system(ITS),it is important to understand the propagation mechanisms and channel models of V2V channels.This paper aims to analyze the channel models at 5.2 GHz for the highway environment in obstructed line-of-sight(OLoS)and line-of-sight(LoS)scenarios,particularly the vehicle connectivity probability derivation based on the propagation model obtained from measurement.First,the path loss(PL),shadow fading(SF),narrowband K-factor,and small-scale amplitude fading are analyzed.Results showed that the received signal magnitude follows Rice and Weibull distribution in LoS and OLoS scenarios,respectively.Second,we develop simple and low-complexity tapped delay line(TDL)models with a 10 MHz bandwidth for LoS and OLoS scenarios;in addition,we investigate the wideband K-factor,the root mean square delay spread(RMS-DS),and delay-Doppler spectrum.Third,we derive the closed form connectivity probability between any two vehicles in the presence of Weibull fading channel,and analyze the effects of Weibull fading channel and traffic parameters on connectivity.It is found that Weibull fading parameter,transmit power and vehicle density have positive impact on connectivity probability,PL exponent has negative impact on connectivity probability.

关 键 词：channel model CONNECTIVITY HIGHWAY tapped delay line model vehicle-to-vehicle 

分 类 号：U495[交通运输工程—交通运输规划与管理] TN929.5[交通运输工程—道路与铁道工程] U463.67[电子电信—通信与信息系统]