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The terahertz (THz) band is a promising candidate for sixth-generation wireless networks, but its deploymen in outdoor environments is challenged by meteorological phenomena, particularly fog, which imposes variable and difficult-to-predict…

At millimeter-wave frequencies, diffuse scattering from rough surfaces is an important propagation mechanism. Including this mechanism in radio propagation modeling tools,such as ray-tracing, is a key step towards realizing accurate…

Signal Processing · Electrical Eng. & Systems 2021-06-16 Stefanos Bakirtzis , Takahiro Hashimoto , Costas D. Sarris

This paper focuses on the spatial-spectral terahertz (THz) networks, where transmitters equipped with leaky-wave antennas send information to their receivers at the THz frequency bands. As a directional and nearly planar antenna, the…

Information Theory · Computer Science 2021-11-05 Zheng Lin , Lifeng Wang , Bo Tan , Xiang Li

Sub-terahertz (sub-THz) frequencies (100--300 GHz) are expected to play a key role in beyond-5G and 6G mobile networks. However, their quasi-optical propagation characteristics require new channel models beyond sub-100 GHz extrapolations.…

Signal Processing · Electrical Eng. & Systems 2026-03-03 Minseok Kim , Masato Yomoda , Minghe Mao , Nobuaki Kuno , Koshiro Kitao , Satoshi Suyama

Manipulating broadband fields in scattering media is a modern challenge across photonics and other wave domains. Recent studies have shown that complex propagation in scattering media can be harnessed to manipulate broadband light wave…

The dielectric properties of environmental surfaces, including walls, floors and the ground, etc., play a crucial role in shaping the accuracy of terahertz (THz) channel modeling, thereby directly impacting the effectiveness of…

Applied Physics · Physics 2024-08-13 Jiayuan Cui , Da Li , Jiabiao Zhao , Jiacheng Liu , Guohao Liu , Xiangkun He , Yue Su , Fei Song , Peian Li , Jianjun Ma

In this paper, a wideband and low-scattering metasurface in terahertz (THz) is introduced. The proposed coding metasurface is composed of four different graphene square patches in one layer, which has a distinct bias voltage. By optimizing…

Applied Physics · Physics 2020-01-28 Kasra Rouhi , Ali Abdolali , Susan Fallah

Terahertz spectral range (frequencies of 0.1-1 THz) has recently emerged as the next frontier for non-destructive imaging, industrial sensing and ultra-fast wireless communications. Here, we review several classes of materials such as…

Optics · Physics 2019-11-07 Mathieu Poulin , Steven Giannacopoulos , Maksim Skorobogatiy

TeraHertz (THz) communications are envisioned as a promising technology, owing to its unprecedented multi-GHz bandwidth. One fundamental challenge when moving to new spectrum is to understand the science of radio propagation and develop an…

Information Theory · Computer Science 2021-02-01 Yi Chen , Yuanbo Li , Chong Han , Ziming Yu , Guangjian Wang

Providing continuous bandwidth over several tens of GHz, the Terahertz (THz) band (0.1-10 THz) supports space-air-ground integrated network (SAGIN) in 6G and beyond wireless networks. However, it is still mystery how THz waves interact with…

Systems and Control · Electrical Eng. & Systems 2023-08-03 Zhirong Yang , Weijun Gao , Chong Han

Reconfigurable intelligent surface (RIS)-aided terahertz (THz)-band communications are promising enablers for future wireless networks. However, array densification at high frequencies introduces significant challenges in accurate channel…

Signal Processing · Electrical Eng. & Systems 2025-05-16 Ahmad Dkhan , Simon Tarboush , Hadi Sarieddeen , Ibrahim Abou-Faycal , Tareq Y. Al-Naffouri

This paper presents the analysis and characterization of the surface scattering process for both specular and diffused components. The study is focused on the investigation of various building materials each having a different roughness, at…

Signal Processing · Electrical Eng. & Systems 2017-10-17 Angelos A. Goulianos , Alberto L. Freire , Tom Barratt , Evangelos Mellios , Peter Cain , Moray Rumney , Andrew Nix , Mark Beach

In this work, extensive propagation characteristics of short range 240 to 300 GHz terahertz (THz) channels are mapped based on a measurement campaign conducted utilizing a novel, task specific measurement system. The measurement system…

Signal Processing · Electrical Eng. & Systems 2023-06-16 Erhan Karakoca , Hasan Nayir , Güneş Karabulut Kurt , Ali Görçin

Wireless communication in millimetre wave bands, namely above 20 GHz and up to 300 GHz, is foreseen as a key enabler technology for the next generation of wireless systems. The huge available bandwidth is contemplated to achieve high…

Next-generation wireless networks will see the convergence of communication and sensing, also exploiting the availability of large bandwidths in the Terahertz (THz) spectrum and electrically large antenna arrays on handheld devices. In…

Signal Processing · Electrical Eng. & Systems 2022-12-26 Marina Lotti , Gianni Pasolini , Anna Guerra , Francesco Guidi , Raffaele D'Errico , Davide Dardari

The THz band (0.1-10 THz) is emerging as a crucial enabler for sixth-generation (6G) mobile communication systems, overcoming the limitations of current technologies and unlocking new opportunities for low-latency and ultra-high-speed…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Minseok Kim , Jun-ichi Takada , Minghe Mao , Che Chia Kang , Xin Du , Anirban Ghosh

The current focus of academia and the telecommunications industry has been shifted to the development of the six-generation (6G) cellular technology, also formally referred to as IMT-2030. Unprecedented applications that 6G aims to…

Information Theory · Computer Science 2023-10-26 Wei Jiang , Hans D. Schotten

The terahertz (THz) band is a key enabler for future wireless systems, promising ultra-high data rates and dense spatial reuse. However, the reliability of THz links remains a major challenge due to severe path loss and small-scale fading…

Signal Processing · Electrical Eng. & Systems 2026-01-23 Almutasem Bellah Enad , Jihad Fahs , Hakim Jemaa , Hadi Sarieddeen , Tareq Y. Al-Naffouri

For decades, the terahertz (THz) frequency band had been primarily explored in the context of radar, imaging, and spectroscopy, where multi-gigahertz (GHz) and even THz-wide channels and the properties of terahertz photons offered…

Networking and Internet Architecture · Computer Science 2024-06-11 Josep M. Jornet , Vitaly Petrov , Hua Wang , Zoya Popovic , Dipankar Shakya , Jose V. Siles , Theodore S. Rappaport

We present experimental and numerical studies of localized terahertz surface waves on a subwavelength-thick metamaterial film consisting of in-plane split-ring resonators. A simple and intuitive model is derived that describes the…

Optics · Physics 2010-10-06 Benjamin Reinhard , Oliver Paul , Rene Beigang , Marco Rahm