Timing Synchronization and Ranging in Networked UAV-Aided OFDM Systems  

作　　者：Chaoxing Yan Jingjing Wang Lingang Fu Chunxiao Jiang Ming Chen Yong Ren 

机构地区：[1]Beijing Research Institute of Telemetry,Beijing 100076,China [2]Department of Electrical Engineering,Tsinghua University,Beijing 100084,China [3]Tsinghua Space Center,Tsinghua University,Beijing 100084,China [4]Key Laboratory of EDA,Research Institute of Tsinghua University in Shenzhen,Shenzhen 518057,China

出　　处：《Journal of Communications and Information Networks》2018年第4期45-54,共10页通信与信息网络学报（英文）

基　　金：the Key Project of the Key R&D Program(Nos.2018YFC1407200,2017YFC1405200);Ministry of Science and Technology,China,and partly supported by the new strategic industries development projects of Shenzhen City(No.JCYJ20170816151922176).

摘　　要：The space-air-ground network architecture integrates satellite systems,aerial networks,and terrestrial networks,where the unmanned aerial vehicle(UAV)communication in the air segment has attracted particular interest and demonstrated tremendous potential in both military and civilian applications.Orthogonal frequency division multiplexing(OFDM)can be an effective solution to provide high rate and reliable transmission in UAV communication systems because of its high spectral efficiency and robustness against frequency selective fading.We herein focus our attention on two critical issues in our proposed UAV aided OFDM system,i.e.,timing synchronization and ranging.Moreover,extensive simulations are conducted for evaluation.Finally,we design a real-world field test for verifying the effectiveness of our proposed multi-UAV OFDM communication system.

关 键 词：space-air-ground network UAV-aided communication systems timing synchronization OFDMranging 

分 类 号：TN9[电子电信—信息与通信工程]