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相关论文: Intelligent Trajectory Design for RIS-NOMA aided M…

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The fundamental intelligent reflecting surface (IRS) deployment problem is investigated for IRS-assisted networks, where one IRS is arranged to be deployed in a specific region for assisting the communication between an access point (AP)…

信号处理 · 电气工程与系统科学 2021-10-07 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , Robert Schober

This letter proposes a novel six-dimensional movable metasurface (6DMM)-assisted downlink non-orthogonal multiple access (NOMA) system, in which a conventional base station (BS) equipped with fixed antennas serves multiple users with the…

信号处理 · 电气工程与系统科学 2025-12-10 Li-Hsiang Shen

Different from traditional reflection-only reconfigurable intelligent surfaces (RISs), simultaneously transmitting and reflecting RISs (STAR-RISs) represent a novel technology, which extends the half-space coverage to full-space coverage by…

信息论 · 计算机科学 2022-09-20 Jiakuo Zuo , Yuanwei Liu , Zhiguo Ding , Lingyang Song , H. Vincent Poor

This paper investigates a downlink multiple-input single-output intelligent reflecting surface (IRS) aided non-orthogonal multiple access (NOMA) system, where a base station (BS) serves multiple users with the aid of IRSs. Our goal is to…

信号处理 · 电气工程与系统科学 2020-11-12 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , Naofal Al-Dhahir

This paper addresses the critical issue of spectrum scarcity and the need to support diverse services, including communication and learning tasks, by presenting a reconfigurable intelligent surface (RIS)-aided wireless network framework…

信号处理 · 电气工程与系统科学 2026-04-21 Saeid Pakravan , Mohsen Ahmadzadeh , Ming Zeng , Ghosheh Abed Hodtani , Xingwang Li , Ji Wang , Gongpu Wang

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…

信号处理 · 电气工程与系统科学 2021-01-06 Mohamed Elhattab , Mohamed Amine Arfaoui , Chadi Assi , Ali Ghrayeb

This paper studies the application of reconfigurable intelligent surface (RIS) to cooperative non-orthogonal multiple access (C-NOMA) networks with simultaneous wireless information and power transfer (SWIPT). We aim for maximizing the rate…

信息论 · 计算机科学 2022-04-19 Juanjuan Ren , Xianfu Lei , Zhangjie Peng , Xiaohu Tang , Octavia A. Dobre

A simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted downlink (DL) active and uplink (UL) backscatter communication (BackCom) framework is proposed. More particularly, a full-duplex (FD) base…

信息论 · 计算机科学 2024-03-25 Ao Huang , Xidong Mu , Li Guo

Envisioned as a promising component of the future wireless Internet-of-Things (IoT) networks, the non-orthogonal multiple access (NOMA) technique can support massive connectivity with a significantly increased spectral efficiency.…

信息论 · 计算机科学 2020-07-28 Yuxin Lu , Peng Cheng , Zhuo Chen , Wai Ho Mow , Yonghui Li , Branka Vucetic

Reconfigurable intelligent surface (RIS) technique stands as a promising signal enhancement or signal cancellation technique for next generation networks. We design a novel passive beamforming weight at RISs in a multiple-input…

信息论 · 计算机科学 2020-03-05 Tianwei Hou , Yuanwei Liu , Zhengyu Song , Xin Sun , Yue Chen

This paper proposes a novel communication system framework based on a reconfigurable intelligent surface (RIS)-aided integrated sensing, communication, and power transmission (ISCPT) communication system. RIS is used to improve transmission…

信号处理 · 电气工程与系统科学 2024-11-04 Yue Xiu , Yang Zhao , Chenfei Xie , Fatma Benkhelifa , Songjie Yang , Wanting Lyu , Chadi Assi , Ning Wei

A novel framework is proposed for cellular offloading with the aid of multiple unmanned aerial vehicles (UAVs), while non-orthogonal multiple access (NOMA) technique is employed at each UAV to further improve the spectrum efficiency of the…

网络与互联网体系结构 · 计算机科学 2020-12-01 Ruikang Zhong , Xiao Liu , Yuanwei Liu , Yue Chen

Non-orthogonal multiple access (NOMA) scheme enables serving users with the same resource block i.e. frequency or time by multiplexing the signal of the users. Intelligent reflecting surfaces (IRS) or reconfigurable intelligent surfaces…

信号处理 · 电气工程与系统科学 2022-11-24 Mobasshir Mahbub , Raed M. Shubair

This paper proposes a simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided wireless-powered non-orthogonal multiple access (NOMA) system, which includes an access point (AP), a STAR-RIS, and two…

信息论 · 计算机科学 2023-01-24 Kengyuan Xie , Guofa Cai , Georges Kaddoum , Jiguang He

Future wireless networks will need to improve adaptive resource allocation and decision-making to handle the increasing number of intelligent devices. Unmanned aerial vehicles (UAVs) are being explored for their potential in real-time…

信号处理 · 电气工程与系统科学 2023-10-18 Felix Obite , Ali Krayani , Atm S. Alam , Lucio Marcenaro , Arumugam Nallanathan , Carlo Regazzoni

Simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted non-orthogonal multiple access (NOMA) communication systems are investigated in its vicinity, where a STAR-RIS is deployed within a predefined…

信号处理 · 电气工程与系统科学 2022-06-28 Qiling Gao , Yuanwei Liu , Xidong Mu , Min Jia , Dongbo Li , Lajos Hanzo

We consider the combination of uplink code-domain non-orthogonal multiple access (NOMA) with massive multiple-input multiple-output (MIMO) and reconfigurable intelligent surfaces (RISs). We assume a setup in which the base station (BS) is…

信息论 · 计算机科学 2022-02-22 Bashar Tahir , Stefan Schwarz , Markus Rupp

A novel integrated sensing and communication (ISAC) system is proposed, where a dual-functional base station is utilized to transmit the superimposed non-orthogonal multiple access (NOMA) communication signal for serving communication users…

信息论 · 计算机科学 2022-10-07 Jiakuo Zuo , Yuanwei Liu , Chenming Zhu , Yixuan Zou , Dengyin Zhang , Naofal Al-Dhahir

In this paper, we propose simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted non-orthogonal multiple access (NOMA) networks. The considered STAR-RIS utilizes the mode switching (MS) protocol to…

信息论 · 计算机科学 2023-09-20 Mahmoud Aldababsa , Aymen Khaleel , Ertugrul Basar

This paper investigates the performance of downlink non-orthogonal multiple access (NOMA) communication in unmanned aerial vehicle (UAV) networks enhanced by partitionable reconfigurable intelligent surfaces (RISs). We analyze three types…

信息论 · 计算机科学 2025-10-03 Masoud Ghazikor , Van Ly Nguyen , Morteza Hashemi