An Anti-Interference Scheme for UAV Data Links in Air–Ground Integrated Vehicular Networks

Sensors

Ruonan Zhang¹  Daosen Zhai¹  Yixin He¹  Mohsen Guizani²  Xiaojiang Du³ 

[1] Department of Communication Engineering, Northwestern Polytechnical University, Xi’an 710072, China;Department of Computer Science and Engineering, Qatar University, Doha 2713, Qatar;Department of Computer and Information Sciences, Temple University, Philadelphia, PA 19122, USA;

关键词: air–ground integrated vehicular networks (agivns);    data links;    multi-ary (m-ary) spread spectrum;    multi-carrier modulation (mcm);    unmanned aerial vehicle (uav);   

DOI  :  10.3390/s19214742

来源: DOAJ

【 摘 要 】

As one of the main applications of the Internet of things (IoT), the vehicular ad-hoc network (VANET) is the core of the intelligent transportation system (ITS). Air−ground integrated vehicular networks (AGIVNs) assisted by unmanned aerial vehicles (UAVs) have the advantages of wide coverage and flexible configuration, which outperform the ground-based VANET in terms of communication quality. However, the complex electromagnetic interference (EMI) severely degrades the communication performance of UAV sensors. Therefore, it is meaningful and challenging to design an efficient anti-interference scheme for UAV data links in AGIVNs. In this paper, we propose an anti-interference scheme, named as Mary-MCM, for UAV data links in AGIVNs based on multi-ary (M-ary) spread spectrum and multi-carrier modulation (MCM). Specifically, the Mary-MCM disperses the interference power by expanding the signal spectrum, such that the anti-interference ability of AGIVNs is enhanced. Besides, by using MCM and multiple-input multiple-output (MIMO) technologies, the Mary-MCM improves the spectrum utilization effectively while ensuring system performance. The simulation results verify that the Mary-MCM achieves excellent anti-interference performance under different EMI combinations.

【 授权许可】

Unknown