About this Research Topic
Thanks to the unique propagation characteristic, Terahertz (THz) frequency range exhibit enormous capabilities in enabling high-resolution sensing technologies, especially for image applications, which have been researched for nearly twenty years. In recent years, Terahertz frequency range has been proven applicable in emerging wireless communication technologies. Due to the abundance of spectrum resources available, the Terahertz bands have been deemed crucial in enabling Terabit data rate transmissions in the sixth-generation (6G) wireless communication networks. An extensive range of Terahertz band applications has been exploited including macro-scale communication (such as wireless backhaul), data centre to Terahertz small cell and vehicular communication and Nanoscale Terahertz Networks (such as the body area network). Moreover, Terahertz technologies have the enormous potential to bolster other emerging wireless techniques, such as reconfigurable intelligent surfaces (RIS), ultra-massive multiple-input multiple-output (UM-MIMO), and integrated sensing and communication (ISAC) to feature the future network.
However, there are still significant challenges in many aspects, from algorithms, devices to systems design. In particular, the absence of crucial devices brings considerable difficulties in developing prototypes or testbeds, which also limits wireless channel measurement and modelling, especially in the mid-range or long-range outdoor size, and the lack of deep understanding of the THz band's propagation channel further hurdles signal processing and standardization progress. In recent years, many breakthroughs and significant progress have been made by worldwide researchers, which include Terahertz propagation channel measurement and modelling, novel algorithms and signal processing techniques for Terahertz transmissions, and infrastructures at both device and system levels. This research topic reflects current challenges, the latest discoveries, and future perspectives on T-Hz transmission and channel modelling technologies.
This Research Topic covers the following directions but is not limited to:
• Advances in Terahertz Channel sounders or testbeds development, measurement campaigns for Terahertz frequency and typical application scenarios.
• Wireless Channel and Propagation Modelling, including propagation characterizing such as the effect of molecular absorption, surface scattering and blockage, channel parameters analysis techniques, wireless channel characteristics analyzing and modelling.
• Advances In Terahertz Transmitters and Receivers Design, including photonic-based devices, compound semiconductor devices, silicon-based devices, power-efficient devices, reconfigurable UM-MIMO arrays, and Terahertz beamformer transceivers.
• PHY Layer Design, including modulation scheme and waveform design, Terahertz MIMO techniques, beamforming and precoding, and Terahertz specific baseband signal processing algorithms such as Channel Coding, Channel Estimation, and data detection.
• Emerging techniques and testbed, including Terahertz reconfigurable Intelligent surfaces assisted communications, Terahertz integrated sensing and communication.
• Standard-related developments and activities
However, there are still significant challenges in many aspects, from algorithms, devices to systems design. In particular, the absence of crucial devices brings considerable difficulties in developing prototypes or testbeds, which also limits wireless channel measurement and modelling, especially in the mid-range or long-range outdoor size, and the lack of deep understanding of the THz band's propagation channel further hurdles signal processing and standardization progress. In recent years, many breakthroughs and significant progress have been made by worldwide researchers, which include Terahertz propagation channel measurement and modelling, novel algorithms and signal processing techniques for Terahertz transmissions, and infrastructures at both device and system levels. This research topic reflects current challenges, the latest discoveries, and future perspectives on T-Hz transmission and channel modelling technologies.
This Research Topic covers the following directions but is not limited to:
• Advances in Terahertz Channel sounders or testbeds development, measurement campaigns for Terahertz frequency and typical application scenarios.
• Wireless Channel and Propagation Modelling, including propagation characterizing such as the effect of molecular absorption, surface scattering and blockage, channel parameters analysis techniques, wireless channel characteristics analyzing and modelling.
• Advances In Terahertz Transmitters and Receivers Design, including photonic-based devices, compound semiconductor devices, silicon-based devices, power-efficient devices, reconfigurable UM-MIMO arrays, and Terahertz beamformer transceivers.
• PHY Layer Design, including modulation scheme and waveform design, Terahertz MIMO techniques, beamforming and precoding, and Terahertz specific baseband signal processing algorithms such as Channel Coding, Channel Estimation, and data detection.
• Emerging techniques and testbed, including Terahertz reconfigurable Intelligent surfaces assisted communications, Terahertz integrated sensing and communication.
• Standard-related developments and activities
Keywords: Terahertz Waveform, Channel Measurement, Channel Modelling, Propagation Characterization, Physical Layer Design, THz Testbed. THz Transciever, UM-MIMO, RIS, ISAC, Standardization
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