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A novel framework to enhance the angular resolution of automotive radars is proposed. An approach to enlarge the antenna aperture using artificial neural networks is developed using a self-supervised learning scheme. Data from a high…

Signal Processing · Electrical Eng. & Systems 2023-04-26 Ignacio Roldan , Francesco Fioranelli , Alexander Yarovoy

Terahertz (THz) communication is considered to be a promising technology for future 6G network. To overcome the severe attenuation and relieve the high power consumption, massive MIMO with hybrid precoding has been widely considered for THz…

Information Theory · Computer Science 2021-08-19 Jingbo Tan , Linglong Dai

Terahertz (THz) communication systems suffer severe blockage issues, which may significantly degrade the communication coverage and quality. Bending beams, capable of adjusting their propagation direction to bypass obstacles, have recently…

Signal Processing · Electrical Eng. & Systems 2025-04-08 Aoran Liu , Weidong Mei , Peilan Wang , Dong Wang , Ya Fei Wu , Zhi Chen , Boyu Ning

Continuous efforts have been devoted to integrate millimeter wave (mmWave) and terahertz (THz) bands into future communication standards in order to overcome the bandwidth shortage problem and achieve high data rates, primarily through…

Signal Processing · Electrical Eng. & Systems 2026-03-05 Sung Hyuck Hong , Junil Choi

Terahertz (THz) communication is a promising technology for future wireless networks due to its ultra-wide bandwidth. However, THz signals suffer from severe attenuation and poor diffraction capability, making it vulnerable to blocking…

Information Theory · Computer Science 2022-02-16 Wanming Hao , Fuhui Zhou , Ming Zeng , Octavia A. Dobre , Naofal Al-Dhahir

THz spectroscopy is an emerging tool for detection of microorganisms and harmful compounds in the food industry, the study of proteins in biomedicine and the development of electron-beam X-ray sources for molecular imaging and lithography.…

Terahertz (THz) integrated sensing and communication (ISAC) enables simultaneous data transmission with Terabit-per-second (Tbps) rate and millimeter-level accurate sensing. To realize such a blueprint, ultra-massive antenna arrays with…

Information Theory · Computer Science 2024-03-27 Yongzhi Wu , Chong Han , Meixia Tao

Since its first demonstration in 1995, terahertz time-domain imaging has attracted an increasingly growing interest for its ability to reveal spectral fingerprints of materials, probe changes in refractive index and absorption, as well as…

Wireless communications and sensing have notably advanced thanks to the recent developments in both software and hardware. Although various modulation schemes have been proposed to efficiently use the limited frequency resources by…

A simultaneously transmitting and reflecting surface (STARS) aided terahertz (THz) communication system is proposed. A novel power consumption model is proposed that depends on the type and resolution of the STARS elements. The spectral…

Information Theory · Computer Science 2023-06-19 Zhaolin Wang , Xidong Mu , Jiaqi Xu , Yuanwei Liu

Millimeter wave (mmWave) and terahertz (THz) drones have the potential to enable several futuristic applications such as coverage extension, enhanced security monitoring, and disaster management. However, these drones need to deploy large…

Signal Processing · Electrical Eng. & Systems 2022-11-15 Gouranga Charan , Andrew Hredzak , Ahmed Alkhateeb

Phased arrays are crucial in various technologies, such as radar and wireless communications, due to their ability to precisely control and steer electromagnetic waves. This precise control improves signal processing and enhances imaging…

Terahertz (THz) communication will be a key enabler for next-generation wireless systems. While THz frequency bands provide abundant bandwidth and extremely high data rates, their effective operation is inhibited by short communication…

Information Theory · Computer Science 2024-10-28 Yasemin Karacora , Christina Chaccour , Aydin Sezgin , Walid Saad

The convergence of Terahertz (THz) communications and Federated Learning (FL) promises ultra-fast distributed learning, yet the impact of realistic wideband impairments on optimization dynamics remains theoretically uncharacterized. This…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-05 O. Tansel Baydas , Ozgur B. Akan

In this letter, we introduce a novel mixed terahertz (THz)-radio frequency (RF) wireless system architecture, which can be used for backhaul/fronthaul applications, and we deliver the theoretical framework for its performance assessment. In…

Signal Processing · Electrical Eng. & Systems 2019-12-11 Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

In this paper, we develop a tractable analytical framework for a three-dimensional (3D) indoor terahertz (THz) communication system to theoretically assess the impact of the pointing error on its coverage performance. Specifically, we model…

Signal Processing · Electrical Eng. & Systems 2026-01-30 Zhifeng Tang , Nan Yang , Xiangyun Zhou , Salman Durrani , Markku Juntti , Josep Miquel Jornet

Far-field imaging beyond the diffraction limit is a long sought-after goal in various imaging applications, which requires usually an array of antennas or mechanical scanning. Here, we present an alternative and novel concept for this…

Optics · Physics 2014-06-10 Lianlin Li , Fang Li , Tiejun Cui , Yunhua Tan , Kan Yao

Terahertz (THz)-band communications are currently being celebrated as a key technology that could fulfill the increasing demands for wireless data traffic in the upcoming sixth-generation (6G) of wireless communications. Many challenges,…

Signal Processing · Electrical Eng. & Systems 2020-09-08 Alice Faisal , Hadi Sarieddeen , Hayssam Dahrouj , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

TeraHertz (THz) communications are envisioned as a promising technology, owing to its unprecedented multi-GHz bandwidth. In this paper, wideband channel measurement campaigns at 140 GHz and 220 GHz are conducted in indoor scenarios…

Information Theory · Computer Science 2021-04-02 Jia He , Yi Chen , Yiqin Wang , Ziming Yu , Chong Han

Reconfigurable intelligent surface (RIS)-assisted terahertz (THz) communication is emerging as a key technology to support ultra-high data rates in future sixth-generation networks. However, the acquisition of accurate channel state…

Information Theory · Computer Science 2025-06-17 Xin Su , Ruisi He , Peng Zhang , Bo Ai , Yong Niu , Gongpu Wang