A State-of-the-Art Survey on Reconfigurable Intelligent Surface-Assisted Non-Orthogonal Multiple Access Networks

Ding, Zhiguo; Lv, Lu; Fang, Fang; Dobre, Octavia A.; Karagiannidis, George K.; Al-Dhahir, Naofal; Schober, Robert; Poor, H. Vincent

doi:10.1109/jproc.2022.3174140

Cited by 114 publications

(54 citation statements)

References 156 publications

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“…3) Terrestrial IRS with NOMA A comprehensive overview of the recent progress on the integration of TIRSs and NOMA was presented in [32] and [33]. The fundamentals of the two techniques were introduced, and then the basic concepts of the integration of the IRSs and NOMA were discussed.…”

Section: Introductionmentioning

confidence: 99%

Aerial Intelligent Reflecting Surfaces in MIMO-NOMA Networks: Fundamentals, Potential Achievements, and Challenges

Lima

Sena

Dinis

et al. 2022

IEEE Open J. Commun. Soc.

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Non-orthogonal multiple access (NOMA) technique and unmanned aerial vehicles (UAVs) have been recognized as promising technologies for enabling the stringent requirements of the different network infrastructures expected for the next generation of wireless networks. In parallel, intelligent reconfigurable surfaces (IRSs) have been widely pointed out as an auspicious solution to further improve spectral efficiency, coverage range, and connectivity. By integrating IRS with UAV and NOMA schemes with multiple-input multiple-output (MIMO) it is possible to smartly improve the overall network performance. In order to explore some of these potentials, this paper provides a comprehensive discussion about the interplay of aerial IRS in MIMO-NOMA (AIRS-NOMA) networks, as well its architecture, functionality principles, and performance gains. In particular, attractive gains related to the data rate maximization, user fairness, energy efficiency, and coverage range are highlighted. Simulation results are provided to support our insightful discussions, in which it is revealed that the performance gains of AIRS-NOMA networks are superior when compared to terrestrial deployment. In addition, to guide new studies perspectives, it is addressed some issues and research opportunities associated with this potential integration.

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Section: Introductionmentioning

confidence: 99%

Aerial Intelligent Reflecting Surfaces in MIMO-NOMA Networks: Fundamentals, Potential Achievements, and Challenges

Lima

Sena

Dinis

et al. 2022

IEEE Open J. Commun. Soc.

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“…To achieve these, there are some strict requirements on 6G, such as ultra-high throughput and reliability, ultra-low latency, seamless connectivity, and so on. To this end, it is critical to integrate some advanced technologies to design the 6G wireless system, such as applying Terahertz communications [4] and intelligent reflect surface (IRS) [5] to improve the efficiency of communications [6], [7], and utilizing multi-access/mobile edging computing (MEC) [8] and Artificial Intelligence (AI) [9] to improve the efficiency F. Tang, X. Chen, M. Zhao are with the School of Computer Science and Engineering, Central South University, ChangSha, China. Emails: {tangfengxiao, xuehan2013, meanzhao}@csu.edu.cn.…”

Section: Introductionmentioning

confidence: 99%

Survey on Digital Twin Edge Networks (DITEN) Toward 6G

Tang

Chen

Rodrigues

et al. 2022

IEEE Open J. Commun. Soc.

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The next generation (6G) wireless systems aim to cater to the Internet of Everything (IoE) and revolutionize customer services and applications to a fully intelligent and autonomous system. To achieve this, the digital twin edge network (DITEN) is proposed to combine mobile/multi-access edge computing (MEC) and digital twin (DT), thereby improving the network performance such as throughput and security, and reducing the cost of communication, computation, and caching. In DITENs, the network status can be continuously monitored, and based on the obtained network states, the networking schemes, such as routing and resource management, can be studied in the established DITENs from a centralized perspective. In this survey, we present a comprehensive overview of DITEN for 6G. First, we present the fundamental aspects of DITEN, including concept, framework, and potential. Second, a comprehensive design of DITEN is devised, including the DT modeling/updating, DT deployment, key issues, and enabling technologies. Then, the typical applications of DITEN towards 6G are provided, including the Internet of Things (IoT), vehicular network, spaceair-groud integrated network (SAGIN), healthcare, wireless systems, and other applications, along with the design of DITEN in each application, such as DT modeling, DT association, incentive mechanisms, and so on. Finally, challenges and open issues are discussed.

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“…The application of RIS in NOMA is also promising because RIS suppresses inter-user interference and increases data rates and reception reliability [9]. Meanwhile, the NOMA technology improves SE by serving users simultaneously on the same frequency [10]. Embedding RIS into the NOMA system can provide higher SE, EE and weighted sum rates with low hardware cost and power consumption [11], [12].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, considerable research has been carried out on RIS due to the increasing demand for wireless communication systems. A few review papers discussed the features of RIS [10], [13], [15], [32], [33], [34], [35]. In particular, in [10], the authors presented a survey focusing on the issues that arise when integrating RIS and NOMA.…”

Section: Introductionmentioning

confidence: 99%

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Semi-Passive Reconfigurable Intelligent Surfaces Enabled Communications: A Comprehensive Survey

Balgabay¹,

Arzykulov²,

Galymzhan³

2022

Preprint

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<p>Along with the advancement of edge computing and next-generation cellular networks, the demand for wireless communication systems is increasing significantly. The fifth-generation (5G) wireless systems are beginning to spread worldwide and gradually finding their application in many domains. However, 5G alone is not enough to solve the problems associated with more complex systems, where technologies such as machine learning (ML) and artificial intelligence are applied, the operational requirements of which can be covered by the use of sixth-generation (6G) networks. One of the most important aspects of implementing 6G is the reconfigurable intelligent surface (RIS), which uses reflective elements capable of manipulating electromagnetic waves. However, the use of a large number of passive reflecting elements in standard RIS complicates the task of channel estimation (CE). To achieve a significant increase in performance, a semi-passive RIS architecture is proposed using a few active sensors that can receive and reflect signals. In this paper, we consider semi-passive RIS and explore different respective CE approaches, classifying them into traditional and ML-based ones, with different metrics for optimization. Finally, in addition to the CE challenges, the issues with RIS deployment and user localization are also studied.</p>

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A State-of-the-Art Survey on Reconfigurable Intelligent Surface-Assisted Non-Orthogonal Multiple Access Networks

Abstract: This article provides an overview of the recent progress on the synergistic integration of reconfigurable intelligent surfaces and non-orthogonal multiple access schemes.

Cited by 114 publications

References 156 publications

Aerial Intelligent Reflecting Surfaces in MIMO-NOMA Networks: Fundamentals, Potential Achievements, and Challenges

Aerial Intelligent Reflecting Surfaces in MIMO-NOMA Networks: Fundamentals, Potential Achievements, and Challenges

Survey on Digital Twin Edge Networks (DITEN) Toward 6G

Semi-Passive Reconfigurable Intelligent Surfaces Enabled Communications: A Comprehensive Survey

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