Leveraging Sensing at the Infrastructure for mmWave Communication

An Overview of Signal Processing Techniques for Joint Communication and Radar Sensing

“…They can also potentially share the spectrum. These have recently motivated significant research interest in the coexistence, cooperation, and joint design (or co-design) of the two systems [1]- [13].…”

“…There exist some excellent overview articles on JCR, particularly on system and signal modelling. For example, [1] provides a foundational review of signal models for basic single carrier and multicarrier JCR systems; [3], [6], [11] cover C&R systems from coexistence, cooperation, to co-design; [4], [8] survey radar-centric DFRC systems, with a focus on signal embedding; [7] delivers an excellent review on the evolution of JCR systems and their potential applications; [12] provides an overview on mobile network JCR systems; [9], [10], [13] overview millimeter-wave JCR systems for automotive networks, providing detailed signal models. However, the topic of receiver signal processing, which is critical for the viability and performance of the JCR systems, has not been adequately covered by the aforementioned literature.…”

“…Considering the topology of communication networks, communication-centric JCR systems can be classified into two types, namely, those realizing sensing in point-to-point communication systems and in large networks such as mobile networks. Two good examples are the IEEE 802.11ad JCR systems for vehicular networks [13], [22], [34] and the perceptive mobile networks [12], [24], respectively. They use the single carrier and multiuser-MIMO OFDM signals as described in Section II-B, respectively.…”

“…There are three types of physical-layer (PHY) packets: single-carrier, OFDM, and control, with OFDM being optional. The preamble in each packet is the main signal that has been exploited for radar sensing [13], [20], [22], [34], [35] in an 802.11ad DFRC system. Although the DFRC system can be applied in many scenarios, it has been mainly investigated for vehicular networks.…”

Millimeter Wave and Terahertz Urban Microcell Propagation Measurements and Models

“…Joint communication and radar sensing [9], [10] will be an important feature of 6G wireless communication systems, where both active sensors such as radar/Lidar and passive sensors like cameras and spectroscopy [1] will support new applications like automotive radars, gesture and activity recognition, and contextual awareness [4], [11]. Sensing aided communications will support beam configuration and alignment, as well as challenging mobility applications like autonomous systems, and communication functionality in radar sensing will help with high-resolution imaging and precise localization with centimeter-level accuracy [5], [9]. [13], [17]- [19].…”