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© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Non-line-of-sight (NLOS) communication with severe loss always leads to performance degradation in unmanned aerial vehicle (UAV) payload communication. In this paper, a UAV NLOS communication scheme based on single-carrier frequency domain equalization with cyclic prefix and cyclic suffix (CP/CS-SC-FDE) is designed. First, the reasons behind the generation of later intersymbol interference (LISI) in UAV NLOS communication are investigated. Then, the frame structure of conventional single-carrier frequency domain equalization with cyclic prefix (CP-SC-FDE) is improved, and the UAV NLOS communication frame structure based on cyclic prefix (CP) and cyclic suffix (CS) is designed. Furthermore, a channel estimation algorithm applicable to this scheme is proposed. The numerical results show that this UAV communication scheme can eliminate intersymbol interference (ISI) in NLOS communication. Compared with the conventional CP-SC-FDE system, this scheme can achieve excellent performance in the Rayleigh channel and other standard NLOS channels. In the CP/CS-SC-FDE system, the BER result is similar to that under ideal synchronization.

Details

Title
A Design of NLOS Communication Scheme Based on SC-FDE with Cyclic Suffix for UAV Payload Communication
Author
Wang, Peng 1   VIAFID ORCID Logo  ; Xiang, Xin 2 ; Wang, Rui 2 ; Dong, Pengyu 1 ; Li, Qiao 2 

 Graduate College, Air Force Engineering University, Xi’an 710038, China; hickey1212@163.com 
 College of Aviation Engineering School, Air Force Engineering University, Xi’an 710038, China; xxisdn2002@sina.com (X.X.); 15353724115@163.com (R.W.); qiao_lee@126.com (Q.L.) 
First page
648
Publication year
2024
Publication date
2024
Publisher
MDPI AG
e-ISSN
2504446X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3132958775
Copyright
© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.