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Advancements toward 6G have intensified demands for ultra-reliable low-latency communication, positioning shortpacket communications as a critical technology for autonomous aerial vehicle (AAV) networks. However, the open broadcast nature…

系统与控制 · 电气工程与系统科学 2025-09-19 Huiling Liu , Junshan Luo , Shilian Wang , Fanggang Wang , Theodoros A. Tsiftsis , Symeon Chatzinotas

The reconfigurable intelligent surface (RIS) technology shows great potential in sixth-generation (6G) terrestrial and non-terrestrial networks (NTNs) since it can effectively change wireless settings to improve connectivity. Extensive…

信号处理 · 电气工程与系统科学 2025-02-25 Wali Ullah Khan , Eva Lagunas , Asad Mahmood , Muhammad Asif , Manzoor Ahmed , Symeon Chatzinotas

Reconfigurable intelligent surfaces (RISs) have been extensively applied in integrated sensing and communication (ISAC) systems due to the capability of enhancing physical layer security (PLS). However, conventional static RIS architectures…

信号处理 · 电气工程与系统科学 2025-12-24 Ling Zhuang , Ximing Xie , Fang Fang , Ali Attaran , Zhizhong Zhang

This paper proposes a three-dimensional (3D) satellite-terrestrial communication network assisted with reconfigurable intelligent surfaces (RISs). Using stochastic geometry models, we present an original framework to derive tractable yet…

信号处理 · 电气工程与系统科学 2024-05-22 Islam M. Tanash , Risto Wichman

The integration of non-terrestrial networks (NTNs), which include high altitude platform (HAP) stations and intelligent reflecting surfaces (IRS) into communication infrastructures has become a crucial area of research to address the…

数值分析 · 数学 2025-11-04 Shunyuan Shang , Emna Zedini , Mohamed-Slim Alouini

Reconfigurable intelligent surfaces (RISs) have recently attracted interest for non-terrestrial networks (NTNs), especially for improving satellite communication performance. However, RIS-assisted urban NTN designs that jointly support…

信号处理 · 电气工程与系统科学 2026-04-22 Muhammad Khalil , Ke Wang , Jinho Choi

This paper evaluates the geometrically averaged performance of a wireless communication network assisted by a multitude of distributed reconfigurable intelligent surfaces (RISs), where the RIS locations are randomly dropped obeying a…

信息论 · 计算机科学 2024-09-18 Jindan Xu , Wei Xu , Chau Yuen

This paper investigates the secure communication capabilities of a non-orthogonal multiple access (NOMA) network supported by a STAR-RIS (simultaneously transmitting and reflecting reconfigurable intelligent surface) deployed on an unmanned…

信号处理 · 电气工程与系统科学 2025-07-09 Aseel Qsibat , Habiba Akhleifa , Abdelhamid Salem , Khaled Rabie , Xingwang Li , Thokozani Shongwe , Mohamad A. Alawad , Yazeed Alkhrijah

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…

Reconfigurable intelligent surfaces (RISs) have promising coverage and data rate gains for wireless communication systems in 5G and beyond. Prior work has mainly focused on analyzing the performance of these surfaces using computer…

This letter investigates the ergodic secrecy rate (ESR) of a reconfigurable intelligent surface (RIS)-assisted communication system in the presence of discrete phase shifts and multiple eavesdroppers (Eves). In particular, a closed-form…

信息论 · 计算机科学 2020-11-16 Peng Xu , Gaojie Chen , Gaofeng Pan , Marco Di Renzo

This correspondence investigates a reconfigurable intelligent surface (RIS)-assisted wireless communication system with security threats. The RIS is deployed to enhance the secrecy outage probability (SOP) of the data sent to a legitimate…

信息论 · 计算机科学 2022-11-30 Wei Shi , Jindan Xu , Wei Xu , Marco Di Renzo , Chunming Zhao

Reconfigurable Intelligent Surfaces (RISs) constitute a strong candidate physical-layer technology for the $6$-th Generation (6G) of wireless networks, offering new design degrees of freedom for efficiently addressing demanding performance…

信息论 · 计算机科学 2023-06-21 Konstantinos D. Katsanos , George C. Alexandropoulos

This work peruses a simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) based wireless system wherein untrusted energy harvesting nodes wiretap the legitimate signal. The achievable secrecy rate and the…

信息论 · 计算机科学 2022-10-18 Mohammad Reza Kavianinia , Mohammad Javad Emadi

Wireless communication in the TeraHertz band (0.1--10 THz) is envisioned as one of the key enabling technologies for the future six generation (6G) wireless communication systems. However, very high propagation attenuations and molecular…

信号处理 · 电气工程与系统科学 2020-09-22 Chongwen Huang , Zhaohui Yang , George C. Alexandropoulos , Kai Xiong , Li Wei , Chau Yuen , Zhaoyang Zhang

In the context of emerging sixth-generation (6G) wireless networks, reconfigurable intelligent surfaces (RISs) are gaining prominence for their ability to intelligently control electromagnetic wave propagation and enhance backhaul…

In this paper, we introduce a theoretical framework for analyzing the performance of multi-reconfigurable intelligence surface (RIS) empowered terahertz (THz) wireless systems subject to turbulence and stochastic beam misalignment. In more…

Terahertz (THz) communications and reconfigurable intelligent surfaces (RISs) have been recently proposed to enable various powerful indoor applications, such as wireless virtual reality (VR). For an efficient servicing of VR users, an…

网络与互联网体系结构 · 计算机科学 2022-12-26 Mounir Bensalem , Anna Engelmann , Admela Jukan

The transition from isolated systems to integrated solutions has driven the development of space-air-ground integrated networks (SAGIN) as well as the integration of communication and radar sensing functionalities. By leveraging the unique…

信号处理 · 电气工程与系统科学 2025-02-26 Chong Han , Weijun Gao , Zhepu Yin , Chuang Yang , Mugen Peng , Wenjun Zhang

Reconfigurable intelligent surface (RIS) emerges as an efficient and promising technology for the next wireless generation networks and has attracted a lot of attention owing to the capability of extending wireless coverage by reflecting…

信息论 · 计算机科学 2023-10-20 Changzhu Liu , Ruisi He , Yong Niu , Zhu Han , Bo Ai , Meilin Gao , Zhangfeng Ma , Gongpu Wang , Zhangdui Zhong