  Integrated sensing and communication (ISAC) system has been envisioned as a
promising technology to be applied in future applications requiring both
communication and high-accuracy sensing. Different from most research focusing
on theoretical analysis and optimization in the area of ISAC, we implement a
reconfigurable distributed antennas and reflecting surfaces (RDARS)-aided ISAC
system prototype to achieve the dual-functionalities with the communication
signal. A RDARS, composed of programmable elements capable of switching between
reflection mode and connected mode, is introduced to assist in uplink signal
transmission and sensing. The developed RDARS-aided ISAC prototype achieves
reliable user localization without compromising the communication rate,
showcasing its potential for future 6G systems.
