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相关论文: Reconfigurable Intelligent Surface Aided NOMA Netw…

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This paper investigates the performance of reconfigurable intelligent surface assisted two-way non-orthogonal multiple access (RIS-TW-NOMA) networks, where a pair of users exchange their information through a RIS. The influence of imperfect…

信息论 · 计算机科学 2022-09-20 Ziwei Liu , Xinwei Yue , Chao Zhang , Yuanwei Liu , Yuanyuan Yao , Yafei Wang , Zhiguo Ding

This paper introduces double cascaded reconfigurable intelligent surfaces (RISs) to non-orthogonal multiple access (NOMA) networks over cascaded Rician fading and Nakagami-$m$ fading channels, where two kinds of passive RIS (PRIS) and…

数值分析 · 数学 2024-08-15 Xuehua Li , Xuanhao Lian , Xinwei Yue , Zhiping Lu , Chongwen Huang , Tianwei Hou

By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems. The downlink RIS-aided…

信息论 · 计算机科学 2020-08-20 Chao Zhang , Wenqiang Yi , Yuanwei Liu

This article focuses on the exploitation of reconfigurable intelligent surfaces (RISs) in multi-user networks employing orthogonal multiple access (OMA) or non-orthogonal multiple access (NOMA), with an emphasis on investigating the…

信息论 · 计算机科学 2022-09-14 Yuanwei Liu , Xidong Mu , Xiao Liu , Marco Di Renzo , Zhiguo Ding , Robert Schober

Nonorthogonal multiple access (NOMA) with multi-antenna base station (BS) is a promising technology for next-generation wireless communication, which has high potential in performance and user fairness. Since the performance of NOMA depends…

信号处理 · 电气工程与系统科学 2023-06-01 Finn Siegismund-Poschmann , Bile Peng , Eduard A. Jorswieck

Intelligent reflecting surface (IRS) is a promising technology to enhance the coverage and performance of wireless networks. We consider the application of IRS to non-orthogonal multiple access (NOMA), where a base station transmits…

信息论 · 计算机科学 2021-01-29 Xinwei Yue , Yuanwei Liu

Reconfigurable intelligent surface (RIS) empowered communications with non-orthogonal multiple access (NOMA) has recently become as an appealing research direction for the next-generation wireless communications. In this paper, we propose a…

信号处理 · 电气工程与系统科学 2022-08-23 Aymen Khaleel , Ertugrul Basar

Reconfigurable intelligent surfaces (RISs) bring great potential to the advancement of 6G and beyond wireless communication technologies. RISs introduce a great degree of flexibility, allowing some sort of virtual control over the wireless…

信号处理 · 电气工程与系统科学 2024-01-10 Ali Tugberk Dogukan , Emre Arslan , Ertugrul Basar

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,…

Power-domain non-orthogonal multiple access (NOMA) has become a promising technology to exploit the new dimension of the power domain to enhance the spectral efficiency of wireless networks. However, most existing NOMA schemes rely on the…

信号处理 · 电气工程与系统科学 2020-03-24 Min Fu , Yong Zhou , Yuanming Shi , Khaled B. Letaief

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

Reconfigurable intelligent surface (RIS) has emerged as a promising technology for achieving high spectrum and energy efficiency in future wireless communication networks. In this paper, we investigate an RIS-aided single-cell multi-user…

信息论 · 计算机科学 2021-05-04 Zhiyang Li , Ming Chen , Zhaohui Yang , Jingwen Zhao , Yinlu Wang , Jianfeng Shi , Chongwen Huang

Reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems, i.e., enhancing the channel quality and altering the SIC orders. Invoked by stochastic geometry methods, we investigate…

信息论 · 计算机科学 2021-03-04 Chao Zhang , Wenqiang Yi , Yuanwei Liu , Qiang Wang

This paper exploits the potential of reconfigurable intelligent surface (RIS) to improve radar sensing in a non-orthogonal multiple access (NOMA) empowered integrated sensing and communication (NOMA-ISAC) network. The objective is to…

信息论 · 计算机科学 2022-09-29 Jiakuo Zuo , Yuanwei Liu

Intelligent reflecting surface (IRS) is a new and disruptive technology to achieve spectrum- and energy-efficient as well as cost-efficient wireless networks. This paper considers an IRS-assisted downlink non-orthogonal-multiple-access…

信息论 · 计算机科学 2020-01-01 Gang Yang , Xinyue Xu , Ying-Chang Liang

By activating blocked users and altering successive interference cancellation (SIC) sequences, reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems. This work investigates…

信息论 · 计算机科学 2020-06-25 Chao Zhang , Wenqiang Yi , Yuanwei Liu , Zhijin Qin , Kok Keong Chai

We consider a reconfigurable intelligent surface (RIS) assisted cell-free massive multiple-input multiple-output non-orthogonal multiple access (NOMA) system, where each access point (AP) serves all the users with the aid of the RIS. We…

信息论 · 计算机科学 2024-09-18 Malay Chakraborty , Ekant Sharma , Himal A. Suraweera , Hien Quoc Ngo

The use of software controlled passive Reconfigurable Intelligent Surface (RIS) in wireless communications has attracted many researchers in recent years. RIS has a certain degree of control over the scattering and reflection…

信号处理 · 电气工程与系统科学 2020-06-30 Vetrivel Chelian Thirumavalavan , Thiruvengadam S Jayaraman

Simultaneously transmitting/refracting and reflecting reconfigurable intelligent surface (STAR-RIS) has been introduced to achieve full coverage area. This paper investigate the performance of STAR-RIS assisted non-orthogonal multiple…

信息论 · 计算机科学 2022-09-20 Xinwei Yue , Jin Xie , Yuanwei Liu , Zhihao Han , Rongke Liu , Zhiguo Ding

Reconfigurable intelligent surfaces (RISs) have sparked a renewed interest in the research community envisioning future wireless communication networks. In this study, we analyzed the performance of RIS-enabled non-orthogonal multiple…

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