Ultra-wideband(UWB)technology is a prospective technology for high-rate transmission and accurate localization in the future communication sys-tems.State-of-art channel modeling approaches usu-ally divide the UWB channel into several sub-band channels and model them independently.By con-sidering frequency-dependent channel parameters,a novel analytical UWB channel model with continu-ous frequency response is proposed.The composite effect of all frequency components within the UWB channel on the channel impulse response(CIR)of de-lay domain is derived based on the continuous chan-nel 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 con-tinuity of channel characteristics on the frequency do-main 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 val-idate the proposed method.The simulated CIR and power gain are shown to be in good agreement with the measurement data.Moreover,the comparison re-sults of power gain and Doppler power spectral density(DPSD)show that the proposed UWB channel model achieves a good balance between the simulation accu-racy and efficiency.

Kai Mao;Qiuming Zhu;Xijuan Ye;Ruirui Feng;Fuqiao Duan;Yang Miao;Maozhong Song

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;The Radio Systems,Faculty of Electrical Engineering Computer Science and Mathematics(EEMCS),University of Twente,the Netherlands

中国通信（英文版）

[1]Kai Mao;Qiuming Zhu;Xijuan Ye;Ruirui Feng;Fuqiao Duan;Yang Miao;Maozhong Song-.UWB Channel Modeling and Simulation with Continuous Frequency Response)[J].中国通信（英文版）,2022(11):88-98

tinuity,DPSD

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