电波科学学报2017，Vol.32Issue(5)：507-512,6.DOI:10.13443/j.cjors.2017091901
5G毫米波短距离链路雨衰减特性分析
Rain attenuation characterization on 5G millimeter wave links with short distances
摘要
Abstract
Rain attenuation can severely affect the performance of the 5th generation(5G)mobile communication millimeter wave systems.By using the existing rain attenuation prediction models,we observed an anomalous phenomenon that when the link is shorter than 1 km,the adjustment factor is bigger than 1,which means that the predicted rain attenuation increases in spite of the path length shortened.By analysing the measured rain attenuation data supplied by ITU-R,we found that the effect of wet antenna attenuation is comparable with that of the path rain attenuation,thus it must be considered in short links.A wet antenna attenuation model related to the rainfall rate is proposed,and parameters in different frequencies are given,which fit well with the measured data.The method also provide a novel thought for short-link rain attenuation modeling by taking wet antenna attenuation into account,which can solve the anomalous phenomenon mentioned above.Results of this research helps to enhance the reliability of the margin design of 5G millimeter wave systems.关键词
5G/雨衰减/调整因子/湿天线衰减/视距链路/毫米波链路/短距离Key words
5G/rain attenuation/adjustment factor/wet antenna attenuation/terrestrial line of sight/millimeter wave link/short distance分类
信息技术与安全科学引用本文复制引用
张鑫,赵振维,林乐科,卢昌胜,侯春枝,吕兆峰,吴振森..5G毫米波短距离链路雨衰减特性分析[J].电波科学学报,2017,32(5):507-512,6.基金项目
国家自然科学基金(No.61401410) （No.61401410）
