[B-1A] Antennas and Propagation A (Electromagnetic Wave Propagation and Applications Except for Communications)

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Candidate for Academic Incentive Award

[B-1A-27] Investigation of RIS Orientation in Mobile Communication Relay Systems Using RIS-Equipped UAV

◎Yudai Ishikawa¹, Tetsuro Imai¹, Takahiro Matsuda², Nobuyoshi Kikuma^2,3,4, Takefumi Hiraguri⁴, Shigenobu Sasaki⁵ (1. Tokyo Denki University, 2. Tokyo Metropolitan University, 3. Nagoya Institute of Technology, 4. Nippon Institute of Technology, 5. Niigata University)

Keywords:

UAV,Reconfigurable Intelligent Surface,Mobile Communication System,UAV Relay System,Millimeter-wave

Higher transmission speed and wider service area are required in mobile communication systems, and drone relay systems have been studied. However, power consumption increases because of signal amplification. Therefore, the use of an UAV equipped with a Reconfigurable Intelligent Surface (RIS) has been considered. In this paper, we evaluate the effect of the RIS installation orientation on the communication performance of an RIS-equipped UAV and investigate the appropriate installation orientation. The evaluation results show that the horizontal installation provides higher average received power and greater deployment flexibility than the vertical installation.