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The next generation of wireless networks is expected to tap into the terahertz (0.1--10 THz) band to satisfy the extreme latency and bandwidth density requirements of future applications. However, the development of systems in this band is…

Terahertz (THz) communication is expected to be a key technology for future sixth-generation (6G) wireless networks. Furthermore, reconfigurable intelligent surfaces (RIS) have been proposed to modify the wireless propagation environment…

Networking and Internet Architecture · Computer Science 2024-07-29 Waqas Khalid , Heejung Yu , Yazdan Ahmad Qadri

Terahertz (THz) communications have been envisioned as a promising enabler to provide ultra-high data transmission for sixth generation (6G) wireless networks. To tackle the blockage vulnerability brought by severe path attenuation and poor…

Information Theory · Computer Science 2021-10-14 Xinying Ma , Zhi Chen , Longfei Yan , Chong Han , Qiye Wen

TeraHertz (THz) communications can satisfy the high data rate demand with massive bandwidth. However, severe path attenuation and hardware imperfection greatly alleviate its performance. Therefore, we utilize the reconfigurable intelligent…

Information Theory · Computer Science 2022-03-22 Hongyang Du , Jiayi Zhang , Ke Guan , Dusit Niyato , Huiying Jiao , Zhiqin Wang , Thomas Kürner

Unlocking the potential of terahertz (THz) and millimetre (mm) waves for next generation communications and imaging applications requires reconfigurable intelligent surfaces (RIS) with programmable elements that can manipulate the waves in…

With the fifth-generation (5G) networks widely commercialized and fast deployed, the sixth-generation (6G) wireless communication is envisioned to provide competitive quality of service (QoS) in multiple aspects to global users. The…

Signal Processing · Electrical Eng. & Systems 2022-10-14 Yiming Huo , Xiaodai Dong , Nuwan Ferdinand

Terahertz (THz) communications will be pivotal in sixth-generation (6G) wireless networks, offering significantly wider bandwidths and higher data rates. However, the unique propagation characteristics of the THz frequency band, such as…

Networking and Internet Architecture · Computer Science 2024-09-17 Waqas Khalid , Heejung Yu , Farman Ali , Huiping Huang

Wireless communications in the THz frequency band is an envisioned revolutionary technology for sixth Generation (6G) networks. However, such frequencies impose certain coverage and device design challenges that need to be efficiently…

Networking and Internet Architecture · Computer Science 2024-03-14 George C. Alexandropoulos , Antonio Clemente , Sérgio Matos , Ryan Husbands , Sean Ahearne , Qi Luo , Verónica Lain-Rubio , Thomas Kürner , Luís M. Pessoa

The demand for unprecedented performance in the upcoming 6G wireless networks is fomenting the research on THz communications empowered by Reconfigurable Inteligent Surfaces (RISs). A wide range of use cases have been proposed, most of…

Terahertz (THz) communication technology is regarded as a promising enabler for achieving ultra-high data rate transmission in next-generation communication systems. To mitigate the high path loss in THz systems, the transmitting beams are…

Signal Processing · Electrical Eng. & Systems 2025-02-25 Yanzhao Hou , Guoning Wang , Chen Chen , Gaoze Mu , Qimei Cui , Xiaofeng Tao , Yuanmu Yang

Intelligent reflecting surfaces (IRSs) have emerged as a cost-effective technology for terahertz (THz) communications by enabling programmable control of the wireless environment. This paper provides a comprehensive overview of IRSs-aided…

Signal Processing · Electrical Eng. & Systems 2025-06-23 Qingqing Wu , Yanze Zhu , Qiaoyan Peng , Wanming Hao , Yanzhao Hou , Fengyuan Yang , Wencai Yan , Guoning Wang , Wen Chen , Chi Qiu

Terahertz (THz) communication offers ultra-high data rates and has emerged as a promising technology for future wireless networks. However, the inherently high free-space path loss of THz waves significantly limits the coverage range of THz…

Signal Processing · Electrical Eng. & Systems 2025-12-17 Ben Chen , Zhangdui Zhong , Ke Guan , Danping He , Yiran Wang , Jianwen Ding , Qi Luo

Reconfigurable intelligent surface (RIS)-empowered communication is one of the promising 6G technologies that allows the conversion of the wireless channel into an intelligent transmit entity by manipulating the impinging waves using…

Information Theory · Computer Science 2020-09-01 I. Yildirim , A. Uyrus , E. Basar

The operation of Terahertz (THz) communication can be significantly impacted by the interaction between the transmitted wave and the molecules in the atmosphere. In particular, it has been observed experimentally that the signal undergoes…

Signal Processing · Electrical Eng. & Systems 2021-09-17 Anish Pradhan , J. Kartheek Devineni , Harpreet S. Dhillon , Andreas F. Molisch

Reconfigurable Intelligent Surface (RIS) has become a popular technology to improve the capability of a THz multiuser Multi-input multi-output (MIMO) communication system. THz wave characteristics, on the other hand, restrict THz beam…

Signal Processing · Electrical Eng. & Systems 2022-07-01 Yicong Liu , Weijie Li , Zihuai Lin

Reconfigurable Intelligent Surfaces enable active control of wireless propagation channels, which is crucial for future 5G and 6G networks. This work presents a scalable RIS design operating at 3.6 GHz with both 1 bit and 3 bit phase…

Systems and Control · Electrical Eng. & Systems 2026-02-23 Markus Heinrichs , Aydin Sezgin , Rainer Kronberger

Graphene-based intelligent reflecting surface (GIRS) has been proved to provide a promising propagation environment to enhance the quality of high frequency terahertz (THz) wireless communication. In this paper, we characterize GIRS for THz…

Signal Processing · Electrical Eng. & Systems 2022-05-04 Bhupendra Sharma , Anirudh Agarwal , Deepak Mishra , Soumitra Debnath

Reconfigurable intelligent surfaces (RISs), with the potential to realize a smart radio environment, have emerged as an energy-efficient and a cost-effective technology to support the services and demands foreseen for coming decades. By…

Information Theory · Computer Science 2021-07-13 Sarah Basharat , Syed Ali Hassan , Haris Pervaiz , Aamir Mahmood , Zhiguo Ding , Mikael Gidlund

We propose a holographic version of a reconfigurable intelligent surface (RIS) and investigate its application to terahertz (THz) massive multiple-input multiple-output systems. Capitalizing on the miniaturization of THz electronic…

Information Theory · Computer Science 2021-03-22 Ziwei Wan , Zhen Gao , Feifei Gao , Marco Di Renzo , Mohamed-Slim Alouini

Terahertz (THz) communication signals are susceptible to severe degradation because of the molecular interaction with the atmosphere in the form of subsequent absorption and re-radiation. Recently, reconfigurable intelligent surface (RIS)…

Signal Processing · Electrical Eng. & Systems 2022-10-04 Anish Pradhan , Mohamed A. Abd-Elmagid , Harpreet S. Dhillon , Andreas F. Molisch
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