基于5G波段的V2V高速无线信道建模  

Modeling of V2V High-Speed Wireless Channel Based on 5G Band

作　　者：陈美好 王钰 訾晶 金婕[1] CHEN Mei-hao;WANG Yu;ZI Jing;JIN Jie(School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201600, China)

机构地区：[1]上海工程技术大学电子电气工程学院,上海201600

出　　处：《测控技术》2019年第4期107-111,共5页Measurement & Control Technology

基　　金：国家自然科学基金项目(61201244)

摘　　要：高速移动的车车(Vehicle-to-Vehicle,V2V)信道与传统蜂窝系统的无线信道相比,其不同在于V2V无线信道的快速时变特性,主要体现在多径分量的快速变化、存在较大多普勒频移以及每条多径都具有动态生/灭特性。提出了一种高速无线信道建模方法,采用马尔科夫链模拟信道的动态生/灭特性,基于Nakagami分布仿真莱斯、瑞利等信道单径衰落,用抽头延时线模型完成高速多径信道建模。与传统无线信道建模方式相比,具有快速建模、动态改变和易于产生的特点,为高速移动无线接收机算法的开发奠定了基础。仿真结果表明,城市车内天线(UIC)信道多径数目最多,衰落最严重。The main difference of wireless channel between the high-speed mobile V2V communication system and the traditional cellular systems is the fast time-varying characteristics. This characteristic is mainly reflected in the rapid change of multi-path component envelopes and the presence of large Doppler shifts. In the mean while, each multi-path component has dynamic birth and death characteristics and it is simulated by the Markov chain model. The proposed wireless model is established by a tapped delay line model, using Nakagami fading to simulate a single path. Compared with the traditional wireless channel modeling method, it has the characteristics of rapid modeling, dynamic change and easy generation, which lays a foundation for the development of high-speed mobile wireless receiver algorithm. Simulation results show that UIC channel has the largest number of multipaths and the most serious fading.

关 键 词：V2V信道 抽头延迟线模型 NAKAGAMI衰落 多普勒谱 马尔科夫链模型 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]