A Primer on Rate-Splitting Multiple Access: Tutorial, Myths, and Frequently Asked Questions

doi:10.1109/JSAC.2023.3242718

	A Primer on Rate-Splitting Multiple Access: Tutorial, Myths, and Frequently Asked Questions
	Clerckx, Bruno 1,2; Mao, Yijie3 ; Jorswieck, Eduard A.4; Yuan, Jinhong 5; Love, David J.6; Erkip, Elza 7; Niyato, Dusit 8
	2023
发表期刊	IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
ISSN	0733-8716
EISSN	1558-0008
卷号	41 期号:5 页码:1-1
发表状态	已发表
DOI	10.1109/JSAC.2023.3242718
摘要	Rate-Splitting Multiple Access (RSMA) has emerged as a powerful multiple access, interference management, and multi-user strategy for next generation communication systems. In this tutorial, we depart from the orthogonal multiple access (OMA) versus non-orthogonal multiple access (NOMA) discussion held in 5G, and the conventional multi-user linear precoding approach used in space-division multiple access (SDMA), multi-user and massive MIMO in 4G and 5G, and show how multi-user communications and multiple access design for 6G and beyond should be intimately related to the fundamental problem of interference management. We start from foundational principles of interference management and rate-splitting, and progressively delineate RSMA frameworks for downlink, uplink, and multi-cell networks. We show that, in contrast to past generations of multiple access techniques (OMA, NOMA, SDMA), RSMA offers numerous benefits: 1) enhanced spectral, energy and computation efficiency; 2) universality by unifying and generalizing OMA, SDMA, NOMA, physical-layer multicasting, multi-user MIMO under a single framework that holds for any number of antennas at each node (SISO, SIMO, MISO, and MIMO settings); 3) flexibility by coping with any interference levels (from very weak to very strong), network loads (underloaded, overloaded), services (unicast, multicast), traffic, user deployments (channel directions and strengths); 4) robustness to inaccurate channel state information (CSI) and resilience to mixed-critical quality of service; 5) reliability under short channel codes and low latency. We then discuss how those benefits translate into numerous opportunities for RSMA in over forty different applications and scenarios of 6G, e.g., multi-user MIMO with statistical/quantized CSI, FDD/TDD/cell-free massive MIMO, millimeter wave and terahertz, cooperative relaying, physical layer security, reconfigurable intelligent surfaces, cloud-radio access network, internet-of-things, massive access, joint communication and jamming, non-orthogonal unicast and multicast, multigroup multicast, multibeam satellite, space-air-ground integrated networks, unmanned aerial vehicles, integrated sensing and communications, grant-free access, network slicing, cognitive radio, optical/visible light communications, mobile edge computing, machine/federated learning, etc. We finally address common myths and answer frequently asked questions, opening the discussions to interesting future research avenues. Supported by the numerous benefits and applications, the tutorial concludes on the underpinning role played by RSMA in next generation networks, which should inspire future research, development, and standardization of RSMA-aided communication for 6G. IEEE
关键词	5G mobile communication systems Base stations Channel state information Electric loads Millimeter waves MIMO systems Multicasting Multiple access interference Network layers Next generation networks Quality of service Terahertz waves 5g mobile communication 6g Downlink Interference Interference cancellation Interference management Mobile communications Multi-user MIMO Multiaccess communication Multiple access Next generation multiple access Next generation networking Non orthogonal multiple access Non-orthogonal Non-orthogonal multiple access Rate splitting Rate-splitting multiple access Space-division multiple-access
URL	查看原文
收录类别	EI ; SCOPUS ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[62201347]
WOS研究方向	Engineering ; Telecommunications
WOS类目	Engineering, Electrical & Electronic ; Telecommunications
WOS记录号	WOS:000975501900002
出版者	Institute of Electrical and Electronics Engineers Inc.
EI入藏号	20230813625427
EI主题词	Space division multiple access
EI分类号	706.1 Electric Power Systems ; 711 Electromagnetic Waves ; 716 Telecommunication ; Radar, Radio and Television ; 716.3 Radio Systems and Equipment ; 717 Optical Communication ; 718 Telephone Systems and Related Technologies ; Line Communications ; 722.3 Data Communication, Equipment and Techniques ; 723 Computer Software, Data Handling and Applications
原始文献类型	Article in Press
来源库	IEEE
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/281934
专题	信息科学与技术学院信息科学与技术学院_PI研究组_毛奕婕组
通讯作者	Mao, Yijie
作者单位	1.Imperial Coll London, Dept Elect & Elect Engn, London SW7 2AZ, England 2.Silicon Austria Labs SAL, A-8010 Graz, Austria 3.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China 4.TU Braunschweig, Inst Commun Technol, D-38106 Braunschweig, Germany 5.Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia 6.Purdue Univ, Elmore Family Sch Elect & Comp Engn, W Lafayette, IN 47907 USA 7.New York Univ, Tandon Sch Engn, Elect & Comp Engn Dept, Brooklyn, NY 11201 USA 8.Nanyang Technol Univ, Sch Comp Sci & Engn, Singapore 639798, Singapore
通讯作者单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Clerckx, Bruno,Mao, Yijie,Jorswieck, Eduard A.,et al. A Primer on Rate-Splitting Multiple Access: Tutorial, Myths, and Frequently Asked Questions[J]. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,2023,41(5):1-1.
APA	Clerckx, Bruno.,Mao, Yijie.,Jorswieck, Eduard A..,Yuan, Jinhong.,Love, David J..,...&Niyato, Dusit.(2023).A Primer on Rate-Splitting Multiple Access: Tutorial, Myths, and Frequently Asked Questions.IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS,41(5),1-1.
MLA	Clerckx, Bruno,et al."A Primer on Rate-Splitting Multiple Access: Tutorial, Myths, and Frequently Asked Questions".IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 41.5(2023):1-1.