Modeling and Analysis of A2G 3D Wideband Nonstationary Channel

doi:10.13190/j.jbupt.2021-013

Journal of Beijing University of Posts and Telecommunications ›› 2021, Vol. 44 ›› Issue (5): 61-66.doi: 10.13190/j.jbupt.2021-013

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Modeling and Analysis of A2G 3D Wideband Nonstationary Channel

SUN Jing-jing, ZHANG Zhi-zhong, DENG Bing-guang

School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China

Received:2021-01-28 Online:2021-10-28 Published:2021-09-06

Abstract

Abstract: A stochastic model based on three-dimensional geometry for wideband non-stationary multi-input multi-output air to ground (A2G) channel is proposed. The model uses a single concentric cylindrical to simulate the distribution of the ground end scatterers, and further subdivides the non-line-of-sight component into the single-bounce scattering component and the ground reflection component. Time-varying angle and time-varying speed are introduced to simulate the non-stationarity of A2G channel. The space-time-frequency correlation function and space Doppler power spectral density function are derived. In addition,statistical characteristics such as envelope level crossing rate and average fading duration are also analyzed. The results show that the flight direction,altitude,elevation angle and other parameters of unmanned aerial vehicle can significantly affect the channel statistics and non-stationarity. The simulated values and the measured data match well, which indicates the correctness and applicability of the proposed channel model.

Key words: unmanned aerial vehicle, channel model, statistical characteristic analysis, multi-input multi-output

CLC Number:

TN929.5

SUN Jing-jing, ZHANG Zhi-zhong, DENG Bing-guang. Modeling and Analysis of A2G 3D Wideband Nonstationary Channel[J]. Journal of Beijing University of Posts and Telecommunications, 2021, 44(5): 61-66.

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Modeling and Analysis of A2G 3D Wideband Nonstationary Channel

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