A Survey on Successive Interference Cancellation Schemes in Non-Orthogonal Multiple Access for Future Radio Access

Iswarya, N.; Jayashree, L. S.

doi:10.1007/s11277-021-08504-1

Cited by 19 publications

(12 citation statements)

References 85 publications

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“…Hybrid NOMA/OMA systems have been proposed [4,5] to overcome the main disadvantages caused by the MAI. Several papers have dealt with SIC algorithms [1][2][3] and NOMA/OMA user selection [4,5].…”

Section: A Brief Overview About Sic Algorithms In Noma Systemsmentioning

confidence: 99%

“…Thus, multiuser interference cancelation techniques play a predominant role to successfully mitigate excessive Multiple Access Interference (MAI). The so-called Sequential Interference Cancelation (SIC) was considered through the last decades to be the most promising approach for MAI mitigation [1][2][3]. It is worth mentioning as well, that SIC algorithms are recently at the center of the attention for both the research community and the industry professionals to significantly reduce excessive interferences due to the spectrum sharing.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

NOMA Transmission Systems: Overview of SIC Design and New Findings

Estrello¹,

Ramos-Alarcon²,

Kontorovich³

2022

Multiplexing - Recent Advances and Novel Applications

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Non-Orthogonal Multiple Access (NOMA) has been recently proposed as a good alternative to meet 5G and beyond requirements in terms of high spectral efficiency, massive connectivity, and low latency. It has been demonstrated that the use of NOMA in downlink has superior performance in terms of throughput, whereas the use in uplink outperforms OMA techniques in terms of fairness. A distinctive feature of NOMA is the presence of excessive multiple-access interference due to the case of usage of power domain to multiplex signals, thus the functional implementation of NOMA implies Successive Interference Cancelation (SIC) to combat this interference. Therefore, SIC design becomes the main point in the effectiveness of NOMA systems. On the other hand, hybrid schemes, NOMA/OMA, have been recently proposed to reduce the drawbacks of pure NOMA systems. However, in these schemes, it becomes necessary to distinguish NOMA and OMA users. Cognitive Radio techniques turn to be a good option to effectively separate NOMA/OMA users as well as to distinguish NOMA users. In this chapter, a brief overview of NOMA techniques related to Cognitive Radio technology (CR-NOMA) and SIC design reported in the literature is presented. Also, new findings about NOMA/OMA users’ recognition are described.

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Section: A Brief Overview About Sic Algorithms In Noma Systemsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NOMA Transmission Systems: Overview of SIC Design and New Findings

Estrello¹,

Ramos-Alarcon²,

Kontorovich³

2022

Multiplexing - Recent Advances and Novel Applications

View full text Add to dashboard Cite

show abstract

“…One of the main problems that emerge in this regard is how to mitigate excessive interferences caused by the spectrum sharing between multiusers and conventional OMA. To significantly reduce such kind of Multiple Access Interferences (MAI) the so-called SIC (Successive Interference Cancellation) approach was recommended (see [1]- [4] and references therein). Although the successive cancellation method for interference mitigation was, in general, well known for many years, the SIC approach has been recently at the center of the attention for both the research community and the industry professionals.…”

Section: Introductionmentioning

confidence: 99%

Comments on SIC Design for SISO NOMA Systems Over Doubly Selective Channels

Kontorovitch

2022

IEEE Open J. Veh. Technol.

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Non-orthogonal multiple access principle applied in power domain (power-domain NOMA) enhances spectrum efficiency and connectivity of mobile communication systems through sharing between Orthogonal Multiple Access (OMA) and other multiple users. It is the almost main current trend for research and standards for 5G and beyond. Spectrum sharing generates multi-users interference (Multiple Access Interference, MAI) which destroys orthogonality in OMA systems. Meanwhile the so-called Successive Interference Cancellation (SIC) techniques are used to suppress MAI and the Cognitive Radio (CR) principle (CR-NOMA) for decoding order for multiple users inspired effective SIC algorithms. The CR-NOMA principle is applied in the present material as well, but with significant changes for SIC design as for Doubly Selective channels. Due to the above reasons, two original SIC design methods are proposed hereafter following the CR-NOMA principle. Regarding to it the OMA signal (primary user) is decoded first using a Chaos-based quasi-optimum Extended Kalman Filter (EKF). The set of "secondary users" (multiusers) are proposed to be decoded secondly by the following two different methods: Chaos-based EKF filters or, sequential m hypothesis testing. The proposed approach for SIC design is rather simple, fast and accurate for practical implementation.

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“…NOMA technologies generally comprise two main manifestations, power-domain NOMA and code-domain NOMA. Power-domain NOMA essentially relies on direct superposition of the transmitted signals, successive interference cancellation (SIC) at the receivers and appropriate power allocation to different users in order to achieve desired performance objectives [ 1 , 2 , 6 , 7 ]. Under the code-domain NOMA paradigm, the users’ signals are distinguished by different spreading signatures chosen to facilitate efficient multiuser detection (MUD) at the receivers (see, e.g., [ 2 , 8 ]).…”

Section: Introductionmentioning

confidence: 99%

Beyond Equal-Power Sparse NOMA: Two User Classes and Closed-Form Bounds on the Achievable Region

Zaidel

Shental

Shamai

2022

Entropy

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Non-orthogonal multiple access (NOMA) is a promising technology for future beyond-5G wireless networks, whose fundamental information-theoretic limits are yet to be fully explored. Considering regular sparse code-domain NOMA (with a fixed and finite number of orthogonal resources allocated to any designated user and vice versa), this paper extends previous results by the authors to a setting comprising two classes of users with different power constraints. Explicit rigorous closed-form analytical inner and outer bounds on the achievable rate (total class throughput) region in the large-system limit are derived and comparatively investigated in extreme-SNR regimes. The inner bound is based on the conditional vector entropy power inequality (EPI), while the outer bound relies on a recent strengthened version of the EPI. Valuable insights are provided into the potential performance gains of regular sparse NOMA in practically oriented settings, comprising, e.g., a combination of low-complexity devices and broadband users with higher transmit power capabilities, or combinations of cell-edge and cell-center users. The conditions for superior performance over dense code-domain NOMA (taking the form of randomly spread code-division multiple access), as well as a relatively small gap to the ultimate performance limits, are identified. The proposed bounds are also applicable for the analysis of interference networks, e.g., Wyner-type cellular models.

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A Survey on Successive Interference Cancellation Schemes in Non-Orthogonal Multiple Access for Future Radio Access

Cited by 19 publications

References 85 publications

NOMA Transmission Systems: Overview of SIC Design and New Findings

NOMA Transmission Systems: Overview of SIC Design and New Findings

Comments on SIC Design for SISO NOMA Systems Over Doubly Selective Channels

Beyond Equal-Power Sparse NOMA: Two User Classes and Closed-Form Bounds on the Achievable Region

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