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Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal prorogation in wireless networks. By smartly tuning the signal reflection via a large number of low-cost passive reflecting elements, IRS is capable…

信息论 · 计算机科学 2020-07-08 Qingqing Wu , Shuowen Zhang , Beixiong Zheng , Changsheng You , Rui Zhang

Reconfigurable intelligent surface (RIS)-aided wireless communications have drawn significant attention recently. We study the physical layer security of the downlink RIS-aided transmission framework for randomly located users in the…

信息论 · 计算机科学 2021-04-09 Jiayi Zhang , Hongyang Du , Qiang Sun , Bo Ai , Derrick Wing Kwan Ng

The reconfigurable intelligent surface (RIS) has received a lot of interest because of its capacity to reconfigure the wireless communication environment in a cost- and energy-efficient way. However, the realistic power consumption modeling…

信息论 · 计算机科学 2024-02-07 Jinghe Wang , Wankai Tang , Jing Cheng Liang , Lei Zhang , Jun Yan Dai , Xiao Li , Shi Jin , Qiang Cheng , Tie Jun Cui

Reconfigurable intelligent surface (RIS) has emerged as a cost-effective solution to improve wireless communication performance through just passive reflection. Recently, the concept of simultaneously transmitting and reflecting RIS…

信息论 · 计算机科学 2023-11-27 Anastasios Papazafeiropoulos , Pandelis Kourtessis , Symeon Chatzinotas

Sensing-assisted communication schemes have recently garnered significant research attention. In this work, we design a dual-function reconfigurable intelligent surface (RIS), integrating both active and passive elements, referred to as the…

信号处理 · 电气工程与系统科学 2025-08-14 Cheng Luo , Luping Xiang , Jie Hu , Kun Yang

Reconfigurable Intelligent Surfaces (RIS) or Intelligent Reflecting Surfaces (IRS) are metasurfaces that can be deployed in various places in wireless environments to make these environments controllable and reconfigurable. In this paper,…

信息论 · 计算机科学 2020-01-22 S. Mohammad Razavizadeh , Tommy Svensson

This paper presents a theoretical framework to analyze the performance of integrated unmanned aerial vehicle (UAV)-intelligent reflecting surface (IRS) relaying system in which IRS provides an additional degree of freedom combined with the…

信号处理 · 电气工程与系统科学 2020-06-22 Taniya Shafique , Hina Tabassum , Ekram Hossain

This paper investigates the performance of one- and two-sided amplitude shift keying (ASK) modulations in noncoherent single-input single-output (SISO) wireless communication systems assisted by a reconfigurable intelligent surface (RIS).…

信息论 · 计算机科学 2024-12-24 Sambit Mishra , Soumya P. Dash , George C. Alexandropoulos

Wireless powered communication (WPC) involves the integration of energy harvesting and data transmission. This allows devices to communicate without constant battery replacements or wired power sources. Reconfigurable intelligent surfaces…

网络与互联网体系结构 · 计算机科学 2024-01-05 Waqas Khalid , Heejung Yu , Alexandros-Apostolos A. Boulogeorgos

Transmission through reconfigurable intelligent surfaces (RISs), which control the reflection/scattering characteristics of incident waves in a deliberate manner to enhance the signal quality at the receiver, appears as a promising…

信息论 · 计算机科学 2020-01-30 Ertugrul Basar

In this paper, we explore the integration of two revolutionary technologies, reconfigurable intelligent surfaces (RISs) and orthogonal time frequency space (OTFS) modulation, to enhance high-speed wireless communications. We introduce a…

信息论 · 计算机科学 2024-04-15 Mohamad H. Dinan , Arman Farhang

Reconfigurable intelligent surface (RIS) has been deemed as one of potential components of future wireless communication systems because it can adaptively manipulate the wireless propagation environment with low-cost passive devices.…

信号处理 · 电气工程与系统科学 2024-10-28 Yanan Ma , Ming Li , Yang Liu , Qingqing Wu , Qian Liu

Aiming at simplifying the hardware structure and reducing the energy consumption in wireless communication via reconfigurable intelligent surfaces (RIS), this paper introduces a novel RIS design founded on the correlation between the phase…

系统与控制 · 电气工程与系统科学 2025-07-01 Zina Mohamed , Ammar B. Kouki , Sonia Aïssa

Recently, reconfigurable intelligent surface (RIS), a planar metasurface consisting of a large number of low-cost reflecting elements, has received much attention due to its ability to improve both the spectrum and energy efficiencies by…

信息论 · 计算机科学 2022-03-18 Jiao Wu , Seungnyun Kim , Byonghyo Shim

We investigate reconfigurable intelligent surface (RIS)-assisted simultaneous wireless information and power transfer (SWIPT) Internet of Things (IoT) networks, where energy-limited IoT devices are overlaid with cellular information users…

信息论 · 计算机科学 2024-07-18 Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou

The use of Intelligent Reflecting Surfaces (IRSs) is considered a potential enabling technology for enhancing the spectral and energy efficiency of beyond 5G communication systems. In this paper, a joint relay and intelligent reflecting…

信号处理 · 电气工程与系统科学 2024-10-22 Uyoata E. Uyoata , Mobayode O. Akinsolu , Enoruwa Obayiuwana , Abimbola Sangodoyin , Ramoni Adeogun

In this paper, a comprehensive performance analysis of a distributed intelligent reflective surfaces (IRSs)-aided communication system is presented. First, the optimal signal-to-noise ratio (SNR), which is attainable through the direct and…

Power splitting based simultaneous wireless information and power transfer (PS-SWIPT) appears to be a promising solution to support future self-sustainable Internet of Things (SS-IoT) networks. However, the performance of these networks is…

信号处理 · 电气工程与系统科学 2024-01-12 Haleema Sadia , Ahmad Kamal Hassan , Ziaul Haq Abbas , Ghulam Abbas , Thar Baker

This paper focuses on the design of transmission methods and reflection optimization for a wireless system assisted by a single or multiple reconfigurable intelligent surfaces (RISs). The existing techniques are either too complex to…

信息论 · 计算机科学 2023-09-13 Wei Jiang , Hans D. Schotten

Reconfigurable intelligent surface (RIS)-assisted communication is a key enabling technology for next-generation wireless communication networks, allowing for the reshaping of wireless channels without requiring traditional radio frequency…

信号处理 · 电气工程与系统科学 2025-11-18 Recep Vural , Aymen Khaleel , Ertugrul Basar