THz ISAC: A Physical-Layer Perspective of Terahertz Integrated Sensing and...

Paper

Abstract

The terahertz (0.1-10 THz) band holds enormous potential for supporting unprecedented dat a ra tes and millimeter-level accurate sensing thanks to its ultra-broad bandwidth. Terahertz integrated sensing and communication (ISAC) is viewed as a game-changing technology to realize connected intelligence in 6G and beyond systems. In this article, challenges from the THz channel and transceiver perspectives, as well as difficulties of ISAC, are elaborated. Motivated by these challenges, THz ISAC channels are studied in terms of channel types, measurement, and models. Moreover, four key signal processing techniques to unleash the full potential of THz ISAC are investigated, namely, waveform design, receiver processing, narrowbeam management, and localization. Quantitative studies demonstrate the benefits and performance of the state-of-the-art signal processing methods. Finally, open problems and potential solutions are discussed.

Analysis

Paper intelligence

Summary

This paper explores Terahertz Integrated Sensing and Communication (ISAC) as a key technology for 6G, addressing challenges in THz channels and transceivers, and investigating signal processing techniques for waveform design, receiver processing, narrowbeam management, and localization.

Key findings

THz band offers ultra-broad bandwidth for high data rates and accurate sensing.
THz ISAC is crucial for connected intelligence in 6G.
Signal processing techniques are vital for THz ISAC performance.
Quantitative studies validate the benefits of proposed signal processing methods.

Methods

Analysis of THz channel characteristics (types, measurement, models).
Investigation of four key signal processing techniques: waveform design, receiver processing, narrowbeam management, and localization.
Quantitative studies to demonstrate performance.

Limitations

Challenges from the THz channel perspective are elaborated.
Difficulties related to transceiver design for THz ISAC are discussed.
Open problems and potential solutions are identified.

Applications

Realizing connected intelligence in 6G and beyond systems.

Confidence100%

Discovery

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Source record

Publication metadata

Authors: Chong Han; Yongzhi Wu; Zhi Chen; Yi Chen; Guangjian Wang
Published: Feb 1, 2024
Journal or venue: IEEE Communications Magazine
DOI: 10.1109/mcom.001.2200404
Paper type: journal article
Source: Openalex

DOI OpenAlex