On the Error Performance of Non-orthogonal Multiple Access Systems

Almohamad, Abdullateef; Althunibat, Saud; Hasna, Mazen O.; Qaraqe, Khalid

doi:10.1109/ictc49870.2020.9289229

Cited by 13 publications

(13 citation statements)

References 24 publications

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“…References considering DL NOMA with various number of users and modulation orders are [22], [31]- [33], [36], [37], [39], [43]- [54].…”

Section: A Downlinkmentioning

confidence: 99%

Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Yahya¹,

Ahmed²,

Alsusa³

et al. 2023

Preprint

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<div>Non-orthogonal multiple access (NOMA) has received an enormous attention in the recent literature due to its potential to improve the spectral efficiency of wireless networks. For several years, most of the research efforts on the performance analysis of NOMA were steered towards the ergodic sum rate and outage probability. More recently, error rate analysis of NOMA has attracted massive attention and sparked massive number of researchers whose aim was to evaluate the error rate of the various NOMA configurations and designs. Therefore, the large number of publications that appeared in a short time duration made highly challenging for the research community to identify the contribution of the different research articles. Therefore, this work aims at surveying the research work that considers NOMA error rate analysis and classifying the contributions of each work. Therefore, work redundancy and overlap can be minimized, research gabs can be identified, and future research directions can be outlined. Moreover, this work presents the principles of NOMA error rate analysis.</div>

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“…References considering DL NOMA with various number of users and modulation orders are [22], [31]- [33], [36], [37], [39], [43]- [54].…”

Section: A Downlinkmentioning

confidence: 99%

Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Yahya¹,

Ahmed²,

Alsusa³

et al. 2023

Preprint

View full text Add to dashboard Cite

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“…The power assignment for NOMA has a major impact on the users' BER, and thus, it has been considered widely in the literature [19]- [21], [29], [31], [35], [41]. The power assignment for NOMA can be generally classified into three types, which are fixed power assignment [19], [29], [35], adaptive power assignment based on channel statistical information [31], [34], [41], [42], and adaptive power assignment based on the instantaneous fading coefficients [20], [21]. The adaptive power assignment is usually performed to minimize the system's average error probability [21], [31], [41], or provide certain error probability for each user [20].…”

Section: E Ber Analysis With Adaptive Power Assignmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exact BER Analysis of NOMA With Arbitrary Number of Users and Modulation Orders

Yahya

Alsusa

Al-Dweik

2021

IEEE Trans. Commun.

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Non-orthogonal multiple access (NOMA) is a promising candidate for future mobile networks as it enables improved spectral-efficiency, massive connectivity and low latency. This paper derives exact and asymptotic bit error rate (BER) expressions under Rayleigh fading channels for NOMA systems with arbitrary number of users and arbitrary number of receiving antennas and modulation orders, including binary phase-shift keying and rectangular/square quadrature amplitude modulation. Furthermore, the power coefficients' bounds, which ensure users' fairness, and solve the constellation ambiguity problem, are derived for N = 2 and 3 users cases with any modulation orders. In addition, this paper determines the optimal power assignment that minimizes the system's average BER. These results provide valuable insight into the system's BER performance and power assignment granularity. For instance, it is shown that the feasible power coefficients range becomes significantly small as the modulation order, or N , increases, where the BER performance degrades due to the increased interuser interference. Hence, the derived expressions can be crucial for the system scheduler in allowing it to make accurate decisions of selecting appropriate N , modulation orders, and power coefficients to satisfy the users' requirements. The presented expressions are corroborated via Monte Carlo simulations.Index Terms-Non-orthogonal multiple access (NOMA), bit error rater (BER), arbitrary number of users, arbitrary modulation orders, quadrature amplitude modulation (QAM).

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“…The tightness of the derived bounds varies based on various system parameters, and the gap between the bound and exact BER may exceed 3 dB. Furthermore, analytical expressions of the pairwise error probability (PEP) are given in [42] for an arbitrary number of users and modulation orders while considering imperfect SIC over Nakagami-m fading channels. The presented analytical and simulation results show that the gap between the exact BER and PEP can be substantial, particularly for low and moderate signal-to-noise ratios (SNRs).…”

Section: A Related Workmentioning

confidence: 99%

Section: E Ber Analysis With Adaptive Power Assignmentmentioning

confidence: 99%

Exact BER Analysis of NOMA with Arbitrary Number of Users and Modulation Orders

Yahya¹,

Alsusa²,

Al-Dweik³

2021

Preprint

View full text Add to dashboard Cite

<div><div>Non-orthogonal multiple access (NOMA) is a promising candidate for future mobile networks as it enables improved spectral-efficiency, massive connectivity and low latency. This paper derives exact and asymptotic bit error rate (BER) expressions under Rayleigh fading channels for NOMA systems with arbitrary number of users and arbitrary number of receiving antennas and modulation orders, including binary phase-shift keying and rectangular/square quadrature amplitude modulation. Furthermore, the power coefficients' bounds, which ensure users' fairness, and solve the constellation ambiguity problem, are derived for N=2 and 3 users cases with any modulation orders. In addition, this paper determines the optimal power assignment that minimizes the system's average BER. These results provide valuable insight into the system's BER performance and power assignment granularity. For instance, it is shown that the feasible power coefficients range becomes significantly small as the modulation order, or N, increases, where the BER performance degrades due to the increased inter-user interference. Hence, the derived expressions can be crucial for the system scheduler in allowing it to make accurate decisions of selecting appropriate N, modulation orders, and power coefficients to satisfy the users' requirements. The presented expressions are corroborated via Monte Carlo simulations.</div></div><div><br></div>

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On the Error Performance of Non-orthogonal Multiple Access Systems

Cited by 13 publications

References 24 publications

Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Error Rate Analysis of NOMA: Principles, Survey and Future Directions

Exact BER Analysis of NOMA With Arbitrary Number of Users and Modulation Orders

Exact BER Analysis of NOMA with Arbitrary Number of Users and Modulation Orders

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