A Novel Reconfigurable Intelligent Surfaces-Assisted Communication-Positioning Strategy

As an emerging electromagnetic metamaterial with revolutionary potential, reconfigurable intelligent surfaces (RIS) can enhance long-distance communication, reduce the impact of obstacles between the user equipment (UE) and base station (BS), and realize the localization of the UE through intelligent manipulation of radio waves. This paper proposes a collaborative localization and communication combined strategy based on received signal strength indication (RSSI). Under the premise of imperfect channel state information (CSI), this strategy establishes the terminal positioning model of a RIS-assisted wireless communication system based on weak barriers by utilizing the function of RIS flexible configuration of reflection parameters. Compared with the traditional trilateration and triangulation, the proposed Communication-Positioning (CP) based RIS-assisted strategy greatly improves the utilization rate of the BSs.