电波科学学报2025，Vol.40Issue(6)：1024-1035,12.DOI:10.12265/j.cjors.2024215
一种基于Matérn硬核泊松簇过程的V2I信道模型
A V2I channel model based on Matérn hard-core Poisson cluster process
摘要
Abstract
Wireless channel modeling plays a critical role in understanding,designing,and optimizing wireless communication systems,serving as an indispensable component in this field.To address the communication requirements in vehicle-to-everything(V2X)environments and investigate the impact of obstacle spatial distribution on channel fading characteristics,this paper proposes a novel stochastic scattering cluster generation algorithm.The algorithm integrates the Matérn hard-core point process and the Poisson cluster process to realistically emulate obstacles in V2X channels.Specifically,the spatial coordinates of scattering clusters are configured based on the spatial distribution of real-world obstacles,while the number of scatterers within each cluster is adaptively determined by the local obstacle density.Leveraging propagation graph theory,the simulation incorporates both line-of-sight(LOS)and single-bounce scattering paths.The channel impulse response(CIR)is utilized to derive key statistical metrics,including the power delay profile(PDP)and Doppler power spectrum density(DPSD).Furthermore,the cumulative distribution function(CDF)of the root mean square(RMS)delay spread under varying vehicular trajectories is analyzed.Additionally,the statistical properties of the Rician K-factor and the power angular spectrum(PAS)are characterized in detail.Simulation results demonstrate that the proposed model effectively captures the time-domain non-stationarity in vehicle-to-infrastructure(V2I)scenarios,offering valuable insights for the design and optimization of V2X communication systems.关键词
泊松簇过程/Matérn点过程/车辆-基础设施(V2I)/信道建模/衰落特性Key words
Poisson cluster process/Matérn point process/V2I/channel modeling/decay characteristic分类
信息技术与安全科学引用本文复制引用
LI Xinxing,LIU Liu,ZHANG Jiachi,ZHANG Zhendong,CAI Yuchen..一种基于Matérn硬核泊松簇过程的V2I信道模型[J].电波科学学报,2025,40(6):1024-1035,12.基金项目
国家重点研发计划(2023YFB2904801)National Key Research and Development Program of China(2023YFB2904801) （2023YFB2904801）
