摘要
对于密集城市街道车对车(vehicle to vehicle,V2V)通信环境,有效街道宽度不足以匹配最大散射范围,单点散射的假设过于严格。针对上述问题,提出适用于密集街道V2V场景的多点散射模型。考虑电磁信号多点散射传播路径,通过几何变换将多点散射路径等效为单点椭圆散射路径,分析多径衰落信道的空间参数,推导出发射角(angle of departure,AOD)和到达角(angle of arrival,AOA)的概率密度函数(probability density function,PDF)。计算机仿真结果表明,该模型的提出符合理论和经验,拓展了信道模型在几何角度和多点散射路径方面的研究。
For dense urban street vehicle-to-vehicle（V2 V）communication environment,the single-scattering assumption is too restrictive because the street width is not sufficient to match the maximum scattering region.To overcome this problem,a multi-scattering channel model was provided.The signals were assumed to experience multi-scattering propagation paths,and the multi-scattering propagation paths were considered as one-bounced scattering by geometric transformations and the spatial parameters of the multi-path fading channel were also detailed estimated.General formulations of the probability density function（PDF）of the angle-of-departure（AOD）and angle-of-arrival（AOA）were respectively derived.The proposed model shows good agreement with the theory and experience according to computer simulation results,which further widens the research of channel models in the field of geometric angle and propagation paths.
作者
唐登洪
周杰
TANG Deng - hong ZHOU Jie(Key Laboratory of Meteorological Observation and Information Processing, Nanjing University of Information Science and Technology, Nanjing 210044, China Department of Electronic and Electrical Engineering,Niigata University, Niigata 950-2181, Japan)
出处
《计算机工程与设计》
北大核心
2017年第11期2959-2963,共5页
Computer Engineering and Design
基金
江苏省高校自然科学科学研究重大计划基金项目(14KJA510001)
国家自然科学基金项目(61471153、61372128)
江苏省研究生科研与实践创新计划基金项目(SJCX17_0264)
关键词
V2V通信
散射信道模型
发射角
到达角
概率密度函数
V2Vcommunication
scattering channel model
angle-of-departure
angle-of-arrival
probability density function
