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Seven Defining Features of Terahertz (THz) Wireless Systems: A Fellowship of Communication and Sensing
Information Theory · Submitted 15 Feb 2021
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Ultimately, the goal of this article is to chart a forward-looking roadmap that exposes the necessary solutions and milestones for enabling THz frequencies to realize their potential as a game changer for next-generation wireless systems.
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The abstract, sentence by sentence
Wireless communication at the terahertz (THz) frequency bands (0.1-10THz) is viewed as one of the cornerstones of tomorrow's 6G wireless systems. Owing to the large amount of available bandwidth, THz frequencies can potentially provide wireless capacity performance gains and enable high-resolution sensing. However, operating a wireless system at the THz-band is limited by a highly uncertain channel. Effectively, these channel limitations lead to unreliable intermittent links as a result of a short communication range, and a high susceptibility to blockage and molecular absorption. Consequently, such impediments could disrupt the THz band's promise of high-rate communications and high-resolution sensing capabilities. In this context, this paper panoramically examines the steps needed to efficiently deploy and operate next-generation THz wireless systems that will synergistically support a fellowship of communication and sensing services. For this purpose, we first set the stage by describing the fundamentals of the THz frequency band. Based on these fundamentals, we characterize seven unique defining features of THz wireless systems: 1) Quasi-opticality of the band, 2) THz-tailored wireless architectures, 3) Synergy with lower frequency bands, 4) Joint sensing and communication systems, 5) PHY-layer procedures, 6) Spectrum access techniques, and 7) Real-time network optimization. These seven defining features allow us to shed light on how to re-engineer wireless systems as we know them today so as to make them ready to support THz bands. Furthermore, these features highlight how THz systems turn every communication challenge into a sensing opportunity. Ultimately, the goal of this article is to chart a forward-looking roadmap that exposes the necessary solutions and milestones for enabling THz frequencies to realize their potential as a game changer for next-generation wireless systems.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Wireless communication at the terahertz (THz) frequency bands (0.1-10THz) is viewed as one of the cornerstones of tomorrow's 6G wireless systems. | background 1.00 | 0.05 | 0.02 | asserted 0.73 |
| s1 | Owing to the large amount of available bandwidth, THz frequencies can potentially provide wireless capacity performance gains and enable high-resolution sensing. | background 1.00 | 0.06 | 0.03 | hedged possibility 1.00 |
| s2 | However, operating a wireless system at the THz-band is limited by a highly uncertain channel. | background 0.96 | 0.06 | 0.02 | asserted 1.00 |
| s3 | Effectively, these channel limitations lead to unreliable intermittent links as a result of a short communication range, and a high susceptibility to blockage and molecular absorption. | background 0.98 | 0.09 | 0.03 | asserted 0.98 |
| s4 | Consequently, such impediments could disrupt the THz band's promise of high-rate communications and high-resolution sensing capabilities. | background 0.94 | 0.06 | 0.04 | hedged possibility 1.00 |
| s5 | In this context, this paper panoramically examines the steps needed to efficiently deploy and operate next-generation THz wireless systems that will synergistically support a fellowship of communication and sensing services. | contribution 1.00 | 0.47 | 0.08 | asserted 0.91 |
| s6 | For this purpose, we first set the stage by describing the fundamentals of the THz frequency band. | method 0.60 | 0.34 | 0.02 | asserted 0.76 |
| s7 | Based on these fundamentals, we characterize seven unique defining features of THz wireless systems: 1) Quasi-opticality of the band, 2) THz-tailored wireless architectures, 3) Synergy with lower frequency bands, 4) Joint sensing and communication systems, 5) PHY-layer procedures, 6) Spectrum access techniques, and 7) Real-time network optimization. | contribution 1.00 | 0.77 | 0.11 | asserted 0.99 |
| s8 | These seven defining features allow us to shed light on how to re-engineer wireless systems as we know them today so as to make them ready to support THz bands. | interpretation 0.64 | 0.51 | 0.18 | asserted 0.96 |
| s9 | Furthermore, these features highlight how THz systems turn every communication challenge into a sensing opportunity. | interpretation 0.91 | 0.35 | 0.19 | asserted 1.00 |
| s10 | Ultimately, the goal of this article is to chart a forward-looking roadmap that exposes the necessary solutions and milestones for enabling THz frequencies to realize their potential as a game changer for next-generation wireless systems. | future work 0.65 | 0.22 | 0.43 | asserted 0.84 |
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The paper
Original abstract
Wireless communication at the terahertz (THz) frequency bands (0.1-10THz) is viewed as one of the cornerstones of tomorrow's 6G wireless systems. Owing to the large amount of available bandwidth, THz frequencies can potentially provide wireless capacity performance gains and enable high-resolution sensing. However, operating a wireless system at the THz-band is limited by a highly uncertain channel. Effectively, these channel limitations lead to unreliable intermittent links as a result of a short communication range, and a high susceptibility to blockage and molecular absorption. Consequently, such impediments could disrupt the THz band's promise of high-rate communications and high-resolution sensing capabilities. In this context, this paper panoramically examines the steps needed to efficiently deploy and operate next-generation THz wireless systems that will synergistically support a fellowship of communication and sensing services. For this purpose, we first set the stage by describing the fundamentals of the THz frequency band. Based on these fundamentals, we characterize seven unique defining features of THz wireless systems: 1) Quasi-opticality of the band, 2) THz-tailored wireless architectures, 3) Synergy with lower frequency bands, 4) Joint sensing and communication systems, 5) PHY-layer procedures, 6) Spectrum access techniques, and 7) Real-time network optimization. These seven defining features allow us to shed light on how to re-engineer wireless systems as we know them today so as to make them ready to support THz bands. Furthermore, these features highlight how THz systems turn every communication challenge into a sensing opportunity. Ultimately, the goal of this article is to chart a forward-looking roadmap that exposes the necessary solutions and milestones for enabling THz frequencies to realize their potential as a game changer for next-generation wireless systems.
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How the literature uses it
13 arXiv papers cite this in 20 sentences
Papers citing it · 16 sentences without a confident label
Cites it as background 3 papers
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In [ref] , the sum rate maximization problem in RIS-assisted THz network was investigated.
Learning-based Prediction, Rendering and Transmission for Interactive Virtual Reality in RIS-Assisted Terahertz Networks · RIS-assisted THz network · 1.00
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A detailed treatment of it for THz channels is available in [ref] .] On the other hand, we would like to emphasize that since the wave-controlled RIS described in this paper has substantially fewer parameters to control, its control through ML will be much simpler than conventional ML control of RISs.
Wave-Controlled Metasurface-Based Reconfigurable Intelligent Surfaces · CSI Acquisition and Radio Geometry Dimensionality Reduction via ML · 0.84
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The authors in [ref] provided an introduction of using meta-learning based RL for Terahertz based wireless systems.
Distributed Learning in Wireless Networks: Recent Progress and Future Challenges · State-of-the-Art · 0.92
What it cites · 22 sentences without a confident label
Builds on 2 papers
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Here, one can build on our recent results in [ref] and [ref] which showed that the use of fully-distributed GAN [ref] (i.e., generative models that go beyond classical federated learning) can be effective for mmWave channel estimation in multi-drone networks.
Brainstorming Generative Adversarial Networks (BGANs): Towards Multi-Agent Generative Models with Distributed Private Datasets · Channel Estimation · 0.94
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Here, one can build on our recent results in [ref] and [ref] which showed that the use of fully-distributed GAN [ref] (i.e., generative models that go beyond classical federated learning) can be effective for mmWave channel estimation in multi-drone networks.
Distributed Conditional Generative Adversarial Networks (GANs) for Data-Driven Millimeter Wave Communications in UAV Networks · Channel Estimation · 0.94
Cites as support 4 papers
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These requirements can only be attained by boosting the existing wireless spectrum bands at sub-6 GHz and mmWave with abundant bandwidth through a migration towards the higher frequency THz bands [ref] .
An Overview of Signal Processing Techniques for Terahertz Communications · Introduction · 0.97
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Since the THz performance is contingent on the availability of LoS connections [ref] and [ref] , it would be beneficial if one can to customize the wireless propagation environment in a way to guarantee a continuous LoS link.
Can Terahertz Provide High-Rate Reliable Low Latency Communications for Wireless VR? · Motivation · 0.96
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Herein, THz systems can jointly serve such a use-case especially in indoor areas. * Cost efficiency: Integrating the communication and sensing functionality on a single platform leads to reduced costs and size [ref] .
Enabling Joint Communication and Radar Sensing in Mobile Networks -- A Survey · Opportunities and Advantages · 0.99
Cites as background 2 papers
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Recently, a number of surveys and tutorials related to the deployment of THz over wireless networks appeared in [ref] , and [ref] .
An Overview of Signal Processing Techniques for Terahertz Communications · Prior Works · 0.94
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Recently, a number of surveys and tutorials related to the deployment of THz over wireless networks appeared in [ref] , and [ref] .
Toward End-to-End, Full-Stack 6G Terahertz Networks · Prior Works · 0.94
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