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Terahertz (THz) communications has emerged as a promising technology for future wireless systems due to its potential to support extremely high data rates. However, severe path loss, blockage effects, and sensitivity to beam misalignment…

Information Theory · Computer Science 2026-02-26 Zhifeng Tang , Nan Yang , Salman Durrani , Xiangyun Zhou , Josep Miquel Jornet , Markku Juntti

Wireless communications aided by reconfigurable intelligent surfaces (RISs) is a promising way to improve the coverage for cellular users. The controlled reflection of signals from RISs is especially useful in mm-wave/THz networks when the…

Information Theory · Computer Science 2023-03-14 Vikrant Malik , Gourab Ghatak , Abhishek K. Gupta , Sanket S. Kalamkar

We conduct novel coverage probability analysis of downlink transmission in a three-dimensional (3D) terahertz (THz) communication (THzCom) system. In this system, we address the unique propagation properties in THz band, e.g., absorption…

Signal Processing · Electrical Eng. & Systems 2021-04-21 Akram Shafie , Nan Yang , Salman Durrani , Xiangyun Zhou , Chong Han , Markku Juntti

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

Poisson-Poisson cluster processes (PPCPs) are a class of point processes exhibiting attractive point patterns. Recently, PPCPs are actively studied for modeling and analysis of heterogeneous cellular networks or device-to-device networks.…

Information Theory · Computer Science 2018-03-19 Naoto Miyoshi

In this paper, a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-aided downlink non-orthogonal multiple access (NOMA) Terahertz (THz) wireless system is proposed for indoor and outdoor transmissions.…

Signal Processing · Electrical Eng. & Systems 2026-04-07 Ngoc Phuc Le , Mohamed-Slim Alouini

The reconfigurable intelligent surface (RIS) technology allows one to engineer spatial diversity in complex cellular networks. This paper provides a framework for the system-level performance assessment of RIS-assisted networks and in…

Information Theory · Computer Science 2024-11-12 Guodong Sun , Francois Baccelli , Ke Feng , Luis Uzeda Garcia , Stefano Paris

In this study, we explore the performance of a reconfigurable reflecting surface (RIS)-assisted transmit spatial modulation (SM) system for downlink transmission, wherein the deployment of RIS serves the purpose of blind area coverage…

Information Theory · Computer Science 2024-09-04 Xusheng Zhu , Qingqing Wu , Wen Chen

In this paper, we develop a novel analytical framework for a three-dimensional (3D) indoor terahertz (THz) communication system. Our proposed model incorporates more accurate modeling of wall blockages via Manhattan line processes and…

Information Theory · Computer Science 2024-10-08 Zhifeng Tang , Nan Yang , Salman Durrani , Xiangyun Zhou , Markku Juntti , Josep Miquel Jornet

The scarcity of spectrum resources in current wireless communication systems has sparked enormous research interest in the terahertz (THz) frequency band. This band is characterized by fundamentally different propagation properties…

Signal Processing · Electrical Eng. & Systems 2020-04-17 Akram Shafie , Nan Yang , Zhuo Sun , Salman Durrani

The emerging dynamic Virtual Reality (VR) applications are the best candidate applications in high bandwidth indoor Terahertz (THz) wireless networks, with the Reconfigurable Intelligent Surface (RIS) devices presenting a breakthrough…

Networking and Internet Architecture · Computer Science 2022-11-15 Cao Vien Phung , Andre Drummond , Admela Jukan

This paper investigates a reconfigurable intelligent surface (RIS)-assisted multi-waveguide pinching-antenna (PA) system (PASS) for multi-user downlink information transmission, motivated by the unknown impact of the integration of emerging…

Networking and Internet Architecture · Computer Science 2025-11-26 Changpeng He , Yang Lu , Yanqing Xu , Chong-Yung Chi , Bo Ai , Arumugam Nallanathan

This paper develops a stochastic geometry framework to characterize the statistics of the downlink interference and coverage probability of a typical user in a coexisting terahertz (THz) and radio frequency (RF) network. We first…

Networking and Internet Architecture · Computer Science 2023-04-06 Javad Sayehvand , Hina Tabassum

This paper explores the performance of reconfigurable intelligent surface (RIS) assisted spatial modulation (SM) downlink communication systems, focusing on the average bit error probability (ABEP). Notably, in scenarios with a large number…

Information Theory · Computer Science 2024-04-02 Xusheng Zhu , Qingqing Wu , Wen Chen

The study examines the secrecy outage probability (SOP) and intercept probability (IP) of a reflecting intelligent surface (RIS)-enabled THz wireless network experiencing $\alpha-\mu$ fading with pointing errors. Specifically, the base…

Information Theory · Computer Science 2025-05-27 Faissal El Bouanani , Elmehdi Illi , Marwa Qaraqe , Osamah Badarneh

In this paper, we consider the downlink signal-to-interference-plus-noise ratio (SINR) analysis in a heterogeneous cellular network with K tiers. Each tier is characterized by a base-station (BS) arrangement according to a homogeneous…

Information Theory · Computer Science 2016-11-18 Prasanna Madhusudhanan , Juan G. Restrepo , Youjian , Liu , Timothy X. Brown

Reconfigurable intelligent surfaces (RISs) are expected to be a main component of future 6G networks, due to their capability to create a controllable wireless environment, and achieve extended coverage and improved localization accuracy.…

Signal Processing · Electrical Eng. & Systems 2025-02-27 Mustafa Ammous , Hui Chen , Henk Wymeersch , Shahrokh Valaee

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

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

Terahertz (THz) communication offers the necessary bandwidth to meet the high data rate demands of next-generation wireless systems. However, it faces significant challenges, including severe path loss, dynamic blockages, and beam…

Information Theory · Computer Science 2024-11-19 Yasemin Karacora , Adam Umra , Aydin Sezgin
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