5G毫米波雨衰减链路传播模型及通信性能

doi:10.19665/j.issn1001-2400.2022.04.004

Abstract

Abstract:

For all-weather application requirements for 5G communication systems,the probability distribution models of the attenuation rate (specific attenuation) on the MMW propagating link and rain attenuation channel state are proposed under rainfall environment.The observed rainfall data in Beijing and Haikou during 1951~2019 are statistically processed and analyzed by the K-S goodness of the fit test method,indicating that the rainfall rate distribution better obeys the Weibull distribution in typical areas of China.Based on the Weibull distribution of the rainfall rate and the calculation method for the rain attenuation rate,the probability density function model of rain attenuation on the MMW communication link is derived.Considering the propagation properties of millimeter waves in the rainfall channel,according to the rain attenuation probability density function,the probability distribution model of the rain attenuation channel state is obtained,which can effectively predict the channel attenuation state at the 5G link under rainfall environment.Furthermore,the average BER,channel capacity and outage probability of MMW communication at the rainfall link are analyzed under M-QAM modulation,which is of great practical value to the promotion and application of the MMW communication network in rainfall environment and the link design of telecommunication operators.

Key words: 5G, millimeter wave, rain attenuation link, propagation, model, communication

CLC Number:

TN.914

YANG Ruike,GAO Xia,WU Fuping,LI Renxian,ZHOU Ye. Research on the propagation model and communication performance of the 5G millimeter wave at the rain attenuation link[J].Journal of Xidian University, 2022, 49(4): 24-30.

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Research on the propagation model and communication performance of the 5G millimeter wave at the rain attenuation link

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