Abstract
The fifth-generation and beyond (B5G) wireless networks aim to achieve ultra-high data transmission rates, reduce power consumption, and improved spectral efficiency. In this context, millimeter-wave (mmWave) and terahertz (THz) bands are key enablers to meeting B5G requirements. These bands offer ultrawide bandwidths and require large antenna arrays that yield very narrow beamwidth. As a result, mmWave and THz bands are also preferred for high-resolution sensing applications. Although large portions of the mmWave/THz spectrum are unlicensed and even unallocated, there are concerted efforts to efficiently utilize it and avoid contested spectral environments like the ones seen in sub-6 GHz bands. In this context, the joint radar-communications (JRC) paradigm at these frequencies requires considering unique characteristics of channel propagation, waveform design, receiver processing, and hardware implementations. This chapter provides a synopsis of mmWave/THz JRC considerations and respective enabling technologies. We discuss the JRC-specific differences between both bands, signal processing techniques, and use cases.
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Mishra, K.V., Shankar, M.R.B., Ottersten, B. (2023). Millimeter-Wave and THz-Band Joint Radar-Communications. In: Liu, F., Masouros, C., Eldar, Y.C. (eds) Integrated Sensing and Communications. Springer, Singapore. https://doi.org/10.1007/978-981-99-2501-8_12
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