A Prototype of Sub-THz Communication Link for Immersive 6G XR Applications

Extended reality (XR) is an environment considered one of the pillars of future 6G networks for services such as holographic teleconference and immersive gaming. To make this a reality, communications networks must meet the stringent requirements of XR services. The combination of the ISAC (Integrated Sensing and Communications) paradigm with the utilization of the sub-THz band can be the basis of communications infrastructure that supports XR applications. Following this approach, this work presents the design and implementation details of a sub-THz link prototype that simultaneously supports a data rate of 2 Gbps and radar functionalities. As commercial-off-the-shelf (COTS) equipment is the main hardware component of the prototype, the system has a reduced cost compared to other testbeds based on monolithic, commercial equipment and provides a high degree of flexibility for experimentation.