Clutter-aware Receiver Design for Integrated Sensing and Communication Systems

Due to the increasing spectrum congestion and diversified service requirements for various scenarios, integrated sensing and communication (ISAC) systems have been regarded as an important development direction for the next-generation wireless networks. However, the ISAC system still faces many technical challenges in actual deployment. Among these, interference and clutter are significant challenges that impact both sensing accuracy and communication capacity. To this end, this paper proposes a clutter-aware ISAC system design to simultaneously suppress clutter in the non-target direction and mutual interference between multiple UEs. This method utilizes the spatial diversity of the target and clutter, and realizes the cooperative optimization of sensing accuracy and communication sum rate. The simulation results verify the effectiveness of the proposed scheme in a complex environment configuration.