AG Channel Measurements and Characteristics Analysis in Hilly Scenarios for 6G UAV Communications  

作　　者：Chongyang Yu Yu Liu Hengtai Chang Jingfan Zhang Mengjiao Zhang Peter Poechmueller Chengxiang Wang 

机构地区：[1]School of Microelectronics,Shandong University,No.1500,Shunhua Road,Gaoxin District,Jinan 250101,China [2]National Mobile Communications Research Laboratory,School of Information Science and Engineering,Southeast University,No.2,Sipailou,Xuanwu District,Nanjing 210096,China [3]Purple Mountain Laboratories,No.9,Mozhou East Road,Jiangning District,Nanjing 211111,China

出　　处：《China Communications》2022年第11期32-46,共15页中国通信（英文版）

基　　金：supported by the National Key R&D Program of China under Grant 2021YFB1407001;the National Natural Science Foundation of China(NSFC)under Grants 62001269 and 61960206006;the Fundamental Research Funds of Shandong University under Grant 2020GN032;the Future Plan Program for Young Scholars of Shandong University;the State Key Laboratory of Rail Traffic Control and Safety(Contract No.RCS2022K009);Beijing Jiaotong University,the Taishan Scholar Program of Shandong Province,the Key Technologies R&D Program of Jiangsu(Prospective and Key Technologies for Industry)under Grants BE2022067,BE2022067-1,and BE2022067-3;the High Level Innovation and Entrepreneurial Talent Introduction Program in Jiangsu;the EU H2020 RISE TESTBED2 project under Grant 872172.

摘　　要：As an important part of sixth generation(6G)integrated space-air-ground-sea networks,unmanned aerial vehicle(UAV)communications have aroused great attention and one of its typical application scenarios is the hilly environments.The related UAV air-ground(AG)channel characteristics analysis is crucial for system design and network evaluation of future UAV communications in hilly scenarios.In this paper,a recently conducted channel measurements campaign in a hilly scenario is presented,which is conducted at the center frequencies of 2.585 GHz and 3.5 GHz for different flight trajectories.Based on the measurement data,some key channel characteristics are analyzed,including path loss(PL),shadow fading(SF),Rician K-factor,root mean square(RMS)delay spread(DS),and temporal auto-correlation function(ACF).Finally,the comparison of typical channel characteristics under circular and straight trajectories is given.The related results can provide a theoretical reference for constructing future UAV communication system in hilly scenarios.

关 键 词：UAV communications channel measurements channel characteristics hilly scenarios 6G 

分 类 号：TN929.5[电子电信—通信与信息系统]