OVERVIEW OF RECONFIGURABLE INTELLIGENT RIS SURFACES

Abstract

This article is dedicated to the study of improving network capacity using Reconfigurable Intelligent Surfaces (RIS). Currently, RIS is considered one of the most promising technologies for enhancing the capacity and coverage area of wireless networks by adaptively controlling the phase and amplitude of the reflected signal. The aim of the study is to investigate an approach in which RIS installation does not require transmitting channel state information from the client device to the base station. A solution is considered that aims to improve signal quality between the device installed on the client side and the base station, without the need for operator notification or base station upgrades. This enables the deployment of RIS autonomously, without the involvement of the base station. To evaluate the feasibility of the proposed approach, a prototype of an autonomous RIS configured without the base station's participation was used. Using this prototype, key signal parameters (such as attenuation, throughput, etc.) between the base station and the client device were calculated.

The study employed simulation methods using MATLAB Communication Toolbox and Google Colab, with an analysis of signal transmission and quality. Key signal quality parameters were calculated and compared. The developed methodology is characterized by high scientific novelty and practical relevance.

The proposed approaches can be successfully implemented in modern corporate networks, contributing to improved efficiency and quality of network infrastructure.