IRS with Movable Reflection Elements Aided ISAC: Performance Bound and Optimization Design

To further enhance the performance of intelligent reflecting surface (IRS) aided integrated sensing and communication (ISAC) system, the conception of movable reflection elements is introduced to IRS. We derive the performance bound of both communication and sensing in the context of movable reflection elements, and then design a joint transmit beamforming and element position design algorithm. Numerical results demonstrate that the proposed algorithm, using angular information, aligns with the performance of both communicationonly systems and sensing-only systems with perfect channel state information (CSI).