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相关论文: Blockage Prediction for Mobile UE in RIS-assisted …

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We study the impact of deploying reconfigurable intelligent surfaces (RISs) in mitigating coverage gaps and enhancing transmission reliability in an industrial internet of things (IIoT) network. First, we consider a single blockage scenario…

信号处理 · 电气工程与系统科学 2025-08-26 Rashmi Kumari , Gourab Ghatak , Abhishek K. Gupta

Reconfigurable Intelligent Surfaces (RIS) are planar structures connected to electronic circuitry, which can be employed to steer the electromagnetic signals in a controlled manner. Through this, the signal quality and the effective data…

信息论 · 计算机科学 2021-12-21 Long Kong , Steven Kisseleff , Symeon Chatzinotas , Björn Ottersten , Melike Erol-Kantarci

We study a multiple-input single-output (MISO) communication system assisted by a reconfigurable intelligent surface (RIS). A base station (BS) having multiple antennas is assumed to be communicating to a single-antenna user equipment (UE),…

信号处理 · 电气工程与系统科学 2020-10-08 Neel Kanth Kundu , Matthew R. McKay

Intelligent reflecting surface (IRS) offers a cost effective solution to link blockage problem in mmWave communications, and the prerequisite of which is the accurate estimation of (1) the optimal beams for base station/access point (BS/AP)…

信息论 · 计算机科学 2021-01-13 Wei Wang , Wei Zhang

Communication-sensing integration represents an up-and-coming area of research, enabling wireless networks to simultaneously perform communication and sensing tasks. However, in urban cellular networks, the blockage of buildings results in…

信息论 · 计算机科学 2024-07-03 Zezhong Sun , Shi Yan , Ning Jiang , Jiaen Zhou , Mugen Peng

Given its ability to control and manipulate wireless environments, reconfigurable intelligent surface (RIS), also known as intelligent reflecting surface (IRS), has emerged as a key enabler technology for the six-generation (6G) cellular…

信号处理 · 电气工程与系统科学 2021-02-01 Ahmed Al-Hilo , Moataz Samir , Mohamed Elhattab , Chadi Assi , Sanaa Sharafeddine

This paper investigates an uplink user equipment (UE) location and orientation estimation problem in an indoor rich-scattering environment (RSE) for a multiple-input-multiple-output (MIMO) narrowband reconfigurable intelligent surfaces…

信号处理 · 电气工程与系统科学 2026-04-21 Anum Umer , Ivo Müürsepp , Muhammad Mahtab Alam

The march towards 6G is accelerating and future wireless network architectures require enhanced performance along with significant coverage especially, to combat impairments on account of the wireless channel. Reconfigurable intelligent…

信号处理 · 电气工程与系统科学 2023-08-16 Emre Arslan , Fatih Kilinc , Ertugrul Basar , Huseyin Arslan

In this work, we investigate a reconfigurable intelligent surface (RIS) aided integrated sensing and communication scenario, where a base station (BS) communicates with multiple devices in a full-duplex mode, and senses the positions of…

信号处理 · 电气工程与系统科学 2022-08-16 Zhichao Shao , Xiaojun Yuan , Wei Zhang , Marco Di Renzo

More and more applications that require high reliability and fault tolerance are realized with wireless network architectures and thus ultimately rely on the wireless channels, which can be subject to impairments and blockages. Hence, these…

系统与控制 · 电气工程与系统科学 2022-11-02 Kevin Weinberger , Robert-Jeron Reifert , Aydin Sezgin , Ertugrul Basar

The sixth generation (6G) targets ultra reliable, low latency (URLLC) gigabit connectivity in mmWave bands, where directional channels require precise beam alignment. Reconfigurable intelligent surfaces (RIS) reshape wave propagation and…

信号处理 · 电气工程与系统科学 2025-10-29 M. T. Hassan , D. Zelenchuk , M. A. B. Abbasi

Intelligent reflecting surface (IRS) has been widely studied in recent years, it has emerged as a new technology which can reflect the incident signal by intelligently configuring the reflection elements, thus changing the signal…

信息论 · 计算机科学 2024-05-07 Jintao Luo , Sixing Yin

Integrating reconfigurable intelligent surfaces (RIS) into wireless communication systems is a promising approach for enhancing coverage and data rates by intelligently redirecting signals, through a process known as beamforming. However,…

系统与控制 · 电气工程与系统科学 2025-08-26 Luis C. Mathias , Atefeh Termehchi , Taufik Abrão , Ekram Hossain

This paper investigates a reconfigurable intelligent surface (RIS)-aided unsourced random access (URA) scheme for the sixth-generation (6G) wireless networks with massive sporadic traffic devices. First of all, this paper proposes a novel…

信号处理 · 电气工程与系统科学 2022-06-14 Xiaodan Shao , Lei Cheng , Xiaoming Chen , Chongwen Huang , Derrick Wing Kwan Ng

This article presents a novel perspective to model and simulate reconfigurable intelligent surface (RIS)-assisted communication systems. Traditional methods in antenna design often rely on array method to simulate, whereas communication…

应用物理 · 物理学 2025-01-28 Xiaocun Zong , Fan Yang , Zhijun Zhang , Shenheng Xu , Maokun Li

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

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

Millimeter wave (mmWave) communications are vulnerable to blockages and node mobility due to the highly directional signal beams. The emerging Reconfigurable Intelligent Surfaces (RISs) technique can effectively mitigate the blockage…

信号处理 · 电气工程与系统科学 2024-10-28 Xiaowen Tian , Zhi Sun

In this paper, we analyze the performance of one- and two-sided amplitude shift keying (ASK) modulations in single-input single-output wireless communication aided by a reconfigurable intelligent surface (RIS). Two scenarios are considered…

信号处理 · 电气工程与系统科学 2024-10-03 Srijika Mukhopadhyay , Badri Ramanjaneya Reddy , Soumya P. Dash , George C. Alexandropoulos , Sonia Aissa

The integration of Reconfigurable Intelligent Surfaces (RIS) in 6G wireless networks offers unprecedented control over communication environments. However, identifying optimal configurations within practical constraints remains a…

信号处理 · 电气工程与系统科学 2024-05-15 Kevin Weinberger , Simon Tewes , Aydin Sezgin