Research on the design of active RIS assisted ISAC signal waveform

• 1、College of Electronic and Communication Engineering, Tianjin Normal University, Tianjin 300387, China

Abstract：With the growing demand for communication and sensing, Integrated Sensing and Communication (ISAC) has gradually become a research hotspot in the field of wireless communication, Active Reconfigurable Intelligent Surface (ARIS) has become a key technology to improve the performance of integrated synaesthesia systems due to its unique active signal amplification and dynamic beam steering capabilities. Inspired by the application of ARIS in improving network capacity and coverage, intelligently configuring the wireless propagation environment, and creating non-line-of-sight links, this paper proposes an ARIS-assisted ISAC signal waveform joint optimization method to optimize the communication rate of the ISAC system. The multi-communication user multi-perception target scenario is considered. In order to solve the optimization problem, an alternate optimization algorithm is proposed, and the simulation results show that ARIS can significantly improve the total communication rate of the ISAC system, which is more obvious than that of passive RIS.

Keywords： Wireless communications RIS ISAC Waveform design