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The terahertz communications have the potential to revolutionize data transfer with unmatched speed and facilitate the development of new high-bandwidth applications. This paper studies the performance of downlink terahertz system assisted…

Emerging Technologies · Computer Science 2024-08-30 Wali Ullah Khan , Chandan Kumar Sheemar , Zaid Abdullah , Eva Lagunas , Symeon Chatzinotas

Terahertz (THz) communications have emerged as a promising technology for 6G networks due to their potential for achieving terabit-per-second data rates. However, the impact of rainfall on THz channel characteristics remains incompletely…

Next-generation wireless systems are rapidly evolving from communication-only systems to multi-modal systems with integrated sensing and communications. In this paper a novel joint sensing and communication framework is proposed for…

Information Theory · Computer Science 2021-11-30 Christina Chaccour , Walid Saad , Omid Semiari , Mehdi Bennis , Petar Popovski

This study investigates simpler alternatives to coherent joint transmission for supporting robust connectivity against signal blockage in mmWave/sub-THz access networks. By taking an information-theoretic viewpoint, we demonstrate…

Information Theory · Computer Science 2024-11-04 Lorenzo Miretti , Giuseppe Caire , Sławomir Stańczak

As a key pillar technology for the future 6G networks, Terahertz (THz) communications can provide high-capacity transmissions, but suffers from severe propagation loss and line-of-sight (LoS) blockage that limits the network coverage.…

Information Theory · Computer Science 2024-12-23 Wenrong Chen , Lingxiang Li , Zhi Chen , Yuanwei Liu , Boyu Ning , Tony Quek

Terahertz (THz) communication is one of the most promising candidates to accommodate high-speed mobile data services. This paper proposes a secure hybrid automatic repeat request with incremental redundancy (HARQ-IR) aided THz communication…

Information Theory · Computer Science 2023-08-01 Yongkang Li , Ziyang Song , Zheng Shi , Qingping Dou , Hongjiang Lei , Jinming Wen , Junbin Fang

A reconfigurable intelligent surface (RIS) employs an array of individually-controllable elements to scatter incident signals in a desirable way; for example, to facilitate links between base stations and mobile stations that would…

Signal Processing · Electrical Eng. & Systems 2021-11-24 Steven W. Ellingson

This paper presents a joint framework that integrates reconfigurable intelligent surfaces (RISs) with Terahertz (THz) communications and non-orthogonal multiple access (NOMA) to enhance smart industrial communications. The proposed system…

Networking and Internet Architecture · Computer Science 2025-08-08 Ali Raza , Muhammad Farhan Khan , Zeeshan Alam , Muhammad Saad , Ilyas Saleem , Muhammad Ahmed Mohsin , Muhammad Ali Jamshed

Terahertz (THz)-band communications are celebrated as a key enabling technology for next-generation wireless systems that promises to integrate a wide range of data-demanding and delay-sensitive applications. Following recent advancements…

Signal Processing · Electrical Eng. & Systems 2020-05-04 Hadi Sarieddeen , Nasir Saeed , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

A reconfigurable intelligent surface (RIS)-aided multiple-input multiple-output (MIMO) wireless communication system is considered in this paper wherein the transmitter, Alice modulates secret keys, by using a continuous variable quantum…

Information Theory · Computer Science 2024-10-23 Sushil Kumar , Soumya P. Dash

An intelligent reflecting surface (IRS) at terahertz (THz) bands is expected to have a massive number of reflecting elements to compensate for the severe propagation losses. However, as the IRS size grows, the conventional far-field…

Signal Processing · Electrical Eng. & Systems 2021-03-30 Konstantinos Dovelos , Stylianos D. Assimonis , Hien Quoc Ngo , Boris Bellalta , Michail Matthaiou

Emerging wireless services with extremely high data rate requirements, such as real-time extended reality applications, mandate novel solutions to further increase the capacity of future wireless networks. In this regard, leveraging large…

Signal Processing · Electrical Eng. & Systems 2020-03-11 Reza Barazideh , Omid Semiari , Solmaz Niknam , Balasubramaniam Natarajan

The use of real-time software-controlled reconfigurable intelligent surface (RIS) units is proposed to increase the reliability of vehicle-to-everything (V2X) communications. The optimum placement problem of the RIS units is formulated by…

Networking and Internet Architecture · Computer Science 2020-07-21 Y. Ugur Ozcan , Ozgur Ozdemir , Gunes Karabulut Kurt

Terahertz (THz) communication systems hold immense potential for high-speed data transfer across various domains yet face challenges due to directionality constraints because of free space path loss. To address this, directional beams are…

In this work, we consider multi-hop and mesh hybrid teraHertz/free-space optics (THz/FSO)-based backhaul networks for high data-rate communications. The results are presented for the cases with both out-band integrated access and backhaul…

Signal Processing · Electrical Eng. & Systems 2024-06-19 Praveen Kumar Singya , Behrooz Makki , Antonio D'Errico , Mohamed-Slim Alouini

Reconfigurable intelligent surface (RIS) emerges as a promising technology for the next generation networks. In this paper, we utilize the tools from stochastic geometry to study the performance of a RIS-assisted millimeter wave (mmWave)…

Information Theory · Computer Science 2021-04-19 Le Yang , Fu-Chun Zheng , Shi Jin

The emerging reconfigurable intelligent surface (RIS) technology is promising for applications in the millimeter wave (mmWave) communication systems to effectively compensate for propagation loss or tackle the blockage issue. Considering…

Signal Processing · Electrical Eng. & Systems 2023-02-08 Yu Liu , Ming Chen , Cunhua Pan , Yijin Pan , Yinlu Wang , Yaoming Huang , Tianyang Cao , Jiangzhou Wang

This paper presents an analytical pathloss model for reconfigurable intelligent surface (RIS) assisted terahertz (THz) wireless systems. Specifically, the model accommodates both the THz link and the RIS particularities. Finally, we derive…

Signal Processing · Electrical Eng. & Systems 2021-02-18 Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

A reconfigurable intelligent surface (RIS) is capable of manipulating electromagnetic waves with its flexibly configurable unit cells, thus is an appealing technology to resist fast fading caused by multi-path in wireless communications. In…

Information Theory · Computer Science 2022-08-29 Ruya Zhou , Xiangyu Chen , Wankai Tang , Xiao Li , Shi Jin , Ertugrul Basar , Qiang Cheng , Tie Jun Cui

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
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