UWB Channel Modeling and Simulation with Continuous Frequency Response  

作　　者：Kai Mao Qiuming Zhu Xijuan Ye Ruirui Feng Fuqiao Duan Yang Miao Maozhong Song 

机构地区：[1]The Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space,College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [2]The Radio Systems,Faculty of Electrical Engineering Computer Science and Mathematics(EEMCS),University of Twente,the Netherlands

出　　处：《China Communications》2022年第11期88-98,共11页中国通信（英文版）

基　　金：supported in part by the National Key Scientific Instrument and Equipment Development Project(No.61827801);in part by the National Natural Science Foundation of China(No.62271250);in part by Natural Science Foundation of Jiangsu Province(No.BK20211182);in part by the Key Technologies R&D Program of Jiangsu(Prospective and Key Technologies for Industry)under Grants BE2022067 and BE2022067-3;in part by China Scholarship Council,and in part by Postgraduate Research&Practice Innovation Program of Jiangsu Province,No.KYCX220360.

摘　　要：Ultra-wideband(UWB)technology is a prospective technology for high-rate transmission and accurate localization in the future communication systems.State-of-art channel modeling approaches usually divide the UWB channel into several sub-band channels and model them independently.By considering frequency-dependent channel parameters,a novel analytical UWB channel model with continuous frequency response is proposed.The composite effect of all frequency components within the UWB channel on the channel impulse response(CIR)of delay domain is derived based on the continuous channel transfer function(CTF)of frequency domain.On this basis,a closed-form simulation model for UWB channels and geometry-based parameter calculation method are developed,which can guarantee the continuity of channel characteristics on the frequency domain and greatly reduce the simulation complexity.Finally,the proposed method is applied to generate UWB channel with 2 GHz bandwidth at sub-6GHz and millimeter wave(mmWave)bands,respectively.The channel measurements are also carried out to validate the proposed method.The simulated CIR and power gain are shown to be in good agreement with the measurement data.Moreover,the comparison results of power gain and Doppler power spectral density(DPSD)show that the proposed UWB channel model Received:Apr.23,2022 Revised:Jun.09,2022 Editor:Wei Fan achieves a good balance between the simulation accuracy and efficiency.

关 键 词：ultra-wideband(UWB)channel continuous frequency response frequency-dependent channel parameters simulation model channel measurement 

分 类 号：TN925[电子电信—通信与信息系统]