The ISAC systems aided by MIMO, RIS and with Beamforming Techniques

TL;DR

This paper presents an integrated wireless system combining MIMO, RIS, and beamforming techniques to enhance communication and sensing capabilities, focusing on static RIS configurations, precise localization, and reduced complexity.

Contribution

It introduces a novel system that integrates passive RIS, MIMO, and beamforming for improved spectral efficiency, sensing accuracy, and system simplicity without dynamic RIS reconfiguration.

Findings

Enhanced user localization accuracy using trilateration and AoA techniques.

Reduced sensing costs and interference through static RIS configurations.

Improved spectral efficiency by combining communication and sensing in a unified system.

Abstract

This paper explores the integration of communication and sensing in modern wireless systems through the configuration of BS and RIS antenna elements. By leveraging time multiplexing for both communication and sensing, the proposed system optimizes spectral efficiency and operational performance. The use of static RIS configurations tailored to specific environments eliminates the need for dynamic reconfigurations, enhancing system agility, reducing processing complexity, and improving sensing accuracy. The system incorporates trilateration, angle of arrival, and time of arrival techniques to enable precise user localization by combining signals reflected along multiple paths. This method helps choose the best connections and lowers sensing costs while preventing interference with communication data, highlighting the need to bring together new technologies like passive and adaptive beamforming in one system.