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Related papers: STAR-RIS-aided RSMA for the URLLC multi-user MIMO …

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Innovative reconfigurable intelligent surface (RIS) technologies are rising and recognized as promising candidates to enhance 6G and beyond wireless communication systems. RISs acquire the ability to manipulate electromagnetic signals,…

Intelligent reflecting surface (IRS) is envisioned to play a significant role in future wireless communication systems thanks to its powerful capability of enabling smart and reconfigurable radio environment. In this paper, we study the…

Information Theory · Computer Science 2021-02-23 Weidong Mei , Rui Zhang

In this work, in order to achieve higher spectrum efficiency, we propose a reconfigurable intelligent surface (RIS)-assisted multi-user communication uplink system. Different from previous work in which the RIS only optimizes the phase of…

Information Theory · Computer Science 2020-11-19 Liang Yang , Fanxu Meng , Mazen O. Hasna , Ertugrul Basar

This work demonstrates the effectiveness of a novel simultaneous transmission and reflection reconfigurable intelligent surface (STAR-RIS) in Full-Duplex (FD) aided communication system. The objective is to minimize the total transmit power…

Signal Processing · Electrical Eng. & Systems 2022-03-15 Yiru Wang , Pengxin Guan , Hongkang Yu , Yuping Zhao

Simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) can expand the coverage of mobile edge computing (MEC) services by reflecting and transmitting signals simultaneously, enabling full-space coverage.…

Emerging Technologies · Computer Science 2025-03-07 Dongdong Yang , Bin Li , Dusit Niyato

While the robustness of rate-splitting multiple access (RSMA) to imperfect channel state information (CSI) is well-documented, its susceptibility to attacks launched with malicious reconfigurable intelligent surfaces (RISs) remains…

Signal Processing · Electrical Eng. & Systems 2024-08-26 A. S. de Sena , A. Gomes , J. Kibiłda , N. H. Mahmood , L. A. DaSilva , M. Latva-aho

Simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RIS) offer a transformative approach for integrated sensing and communication (ISAC) systems, particularly for enhancing physical layer security (PLS). This…

Signal Processing · Electrical Eng. & Systems 2026-03-10 Rakesh Ranjan , Anshu Mukherjee , Manjesh K. Hanawal , Keshav Singh , Ioannis Krikidis

This paper investigates the downlink transmission of reconfigurable intelligent surface (RIS)-aided cooperative non-orthogonal-multiple-access (C-NOMA), where both half-duplex (HD) and full-duplex (FD) relaying modes are considered. The…

Signal Processing · Electrical Eng. & Systems 2021-01-06 Mohamed Elhattab , Mohamed Amine Arfaoui , Chadi Assi , Ali Ghrayeb

We investigate the performance of a multiple reconfigurable intelligence surface (RIS)-aided millimeter wave (mmWave) beamspace multiple-input multiple-output (MIMO) system with multiple users (UEs). We focus on a challenging scenario in…

Information Theory · Computer Science 2025-05-21 Zaid Abdullah , Mario R. Camana , Abuzar B. M. Adam , Chandan K. Sheemar , Eva Lagunas , Symeon Chatzinotas

An integrated sensing and backscatter communication (ISABC) system is introduced herein. This system features a full-duplex (FD) base station (BS) that seamlessly merges sensing with backscatter communication and supports multiple users.…

Signal Processing · Electrical Eng. & Systems 2025-01-30 Diluka Galappaththige , Shayan Zargari , Chintha Tellambura , Geoffrey Ye Li

Massive interconnection has sparked people's envisioning for next-generation ultra-reliable and low-latency communications (xURLLC), prompting the design of customized next-generation advanced transceivers (NGAT). Rate-splitting multiple…

Information Theory · Computer Science 2024-02-27 Yuang Chen , Hancheng Lu , Chenwu Zhang , Yansha Deng , Arumugam Nallanathan

In this paper, we consider the downlink transmission of a multi-antenna base station (BS) supported by an active simultaneously transmitting and reconfigurable intelligent surface (STAR-RIS) to serve single-antenna users via simultaneous…

By flexibly manipulating the radio propagation environment, reconfigurable intelligent surface (RIS) is a promising technique for future wireless communications. However, the single-side coverage and double-fading attenuation faced by…

Information Theory · Computer Science 2023-02-01 Ailing Zheng , Wanli Ni , Wen Wang , Hui Tian

This paper examines the energy efficiency optimization problem of intelligent reflective surface (IRS)-assisted multi-user rate division multiple access (RSMA) downlink systems under terahertz propagation. The objective function for energy…

Signal Processing · Electrical Eng. & Systems 2022-11-22 Xiaoyu Chen , Feng Yan , Menghan Hu , Zihuai Lin

We consider a reconfigurable intelligent surface (RIS)-assisted heterogeneous network comprising legitimate information-harvesting receivers (IHRs) and untrusted energy-harvesting receivers (UEHRs). A multi-antenna base station (BS)…

Signal Processing · Electrical Eng. & Systems 2026-03-24 Hamid Reza Hashempour , Le-Nam Tran , Duy H. N. Nguyen , Hien Quoc Ngo

Reconfigurable Intelligent Surfaces (RIS) are an emerging technology that can be used to reconfigure the propagation environment to improve cellular communication link rates. RIS, which are thin metasurfaces composed of discrete elements,…

Signal Processing · Electrical Eng. & Systems 2020-11-11 Pooja Nuti , Brian L. Evans

This paper presents a novel multi-stream downlink communication system that utilizes a transmissive reconfigurable intelligent surface (RIS) transceiver. Specifically, we elaborate the downlink communication scheme using time-modulated…

Signal Processing · Electrical Eng. & Systems 2024-10-07 Zhendong Li , Wen Chen , Haoran Qin , Qingqing Wu , Xusheng Zhu , Ziheng Zhang , Jun Li

Simultaneously transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) have been attracting significant attention in both academia and industry for their advantages of achieving 360{\deg} coverage and enhanced degrees of…

Information Theory · Computer Science 2025-06-13 Yuanwei Liu , Jiaqi Xu , Zhaolin Wang , Xidong Mu , Jianhua Zhang , Ping Zhang

Well-designed simultaneously transmitting and reflecting RIS (STAR-RIS), which extends the half-space coverage to full-space coverage, incurs wireless communication environments to be smart and reconfigurable. In this paper, we survey how…

Information Theory · Computer Science 2022-10-18 Mohammad Reza Kavianinia , Mohammad Javad Emadi

\underline{S}imultaneous \underline{t}ransmitting \underline{a}nd \underline{r}eflecting \underline{s}urface (STARS)-assisted systems have emerged to fill this gap by providing $ 360^{\circ}$ wireless coverage. In parallel, full-duplex (FD)…