PATHLOSS MODEL FOR WIRELESS COMMUNICATION SYSTEM THROUGH INTELLIGENT REFLECTING SURFACE

  • Nguyen Xuan Kien*, Nguyen Thanh Tung, Bui Phuong Thao
Keywords: Reconfigurable intelligent surface; Intelligent reflecting surfaces; Beyond 5G; Pathloss model; Smart radio environment

Abstract

Reconfigurable Intelligent Surfaces (RIS) is a new technology being researched and deployed to develop wireless communication systems, as well as 5G, beyond 5g (B5G), and future 6G mobile networks. The surface contains reconfigurable electromagnetic metamaterial to direct the beam from the source to the desired receivers with maximum signal strength, making random wave propagation a smart radio environment that can be controlled by the user. The article provides some lossy models of transmission lines and channels in communication systems with the support of smart surfaces built based on physical optical techniques and the light reflection theorem of Snell and the physical and electromagnetic nature of RIS. With mathematical expressions, it will provide researchers with a way to calculate, simulate, analyze, evaluate and calibrate communication channels to achieve optimal efficiency before deploying experimental fabrication or for comparison with other transmission enhancement technologies such as AF relay and amplifier, MIMO beamforming, and BackCom backscatter communication.

điểm /   đánh giá
Published
2022-10-20
Issue
Vol. 227 No. 16 (2022): NATURAL SCIENCES - ENGINEERING - TECHNOLOGY
Section
NATURAL SCIENCE – ENGINEERING – TECHNOLOGY