Integrated beamforming and trajectory optimization algorithm for RIS-assisted UAV system

Unmanned aerial vehicles (UAVs) and reconfigurable intelligent surfaces (RISs) have garnered considerable research interest in the fields of 5G and 6G wireless communication due to their remarkable flexibility and cost-effectiveness. However, the inherent openness of wireless communication environme...

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Vydáno v:	ICT express Ročník 10; číslo 5; s. 1080 - 1086
Hlavní autoři:	Sin, Seungseok, Sim, Yuna, Ma, Jina, Moon, Sangmi, You, Young-Hwan, Kim, Cheol Hong, Hwang, Intae
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	Elsevier B.V 01.10.2024 한국통신학회
Témata:	Minorize–maximization Reconfigurable intelligent surfaces Security Successive convex approximation Unmanned aerial vehicle 전자/정보통신공학 Reconfigurable intelligent surfaces Minorize–maximization Unmanned aerial vehicle Security Successive convex approximation
ISSN:	2405-9595, 2405-9595
On-line přístup:	Získat plný text
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Popis
Shrnutí:	Unmanned aerial vehicles (UAVs) and reconfigurable intelligent surfaces (RISs) have garnered considerable research interest in the fields of 5G and 6G wireless communication due to their remarkable flexibility and cost-effectiveness. However, the inherent openness of wireless communication environments renders these technologies vulnerable to eavesdropping. This paper presents a penalty-based successive convex approximation algorithm and a minorize–maximization algorithm to optimize the transmission beamforming vector, RIS beamforming vector, and UAV–RIS trajectory. The objective of this study was to enhance the physical layer security performance of wireless communication systems using UAVs and RISs. Our simulation results demonstrate that the proposed technique achieves a higher security transmission rate compared to existing techniques.
ISSN:	2405-9595 2405-9595
DOI:	10.1016/j.icte.2024.04.008