摘要
As unmanned aerial vehicles(UAV)deploy-ment is shifting from military to civilian sectors,and in particular as a means of facilitating more flexible and versatile wireless communications,the UAV channels that were previously not well understood are attracting increasing research and investigation.As the key component facilitating the UAV-aided communications,UAV channel characteristics and modeling are of critical importance to the designed UAV system to achieve satisfactory performance.In this article,we will provide a comprehensive overview and the future perspective of envisioned UAV communication system benefits,the existing and needed UAV channel measurements and modeling approaches,together with the new viewpoint of UAV channel applications in different communication and networking layers.Both existing work and future directions are extensively covered.
基金
supported by the Ministry National Key Research and Development Project under Grant 2017YFE0121400
the National Science and Technology Major Project under Grant 2018ZX03001031
Shenzhen Fundamental Research Fund under Grant No.JCYJ20170411102217994
Guangdong province under grant No.2017ZT07X152
the Open Research Fund from Shenzhen Research Institute of Big Data under Grant No.2019ORF01006
the National Natural Science Foundation of China under Grants 61622101 and 61571020.
