Real-Time Demonstration of Integrated Sensing and Communication in the Sub-Terahertz D-Band

The paper showcases a real-time demonstration of an ultra-broadband (4 GHz) integrated sensing and communications (ISAC) operating in the upper D-band at 160 GHz. The demonstration illustrates quasi-monostatic sensing by measuring and estimating delay-Doppler maps, while also maintaining a 4.9 Gbit/s communication link to a remote receiver located 4 meters away, utilizing a single carrier quadrature amplitude modulation (16-QAM) signal. The results of the demonstration indicate that the D-band is suitable for ISAC applications in future mobile communications, especially in the context of 6 G technologies.