Modeling and Simulating NOMA Performance for Next Generations
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Abstract
Non-orthogonal multiple access (NOMA) is a multiple access technique that allows multiple users to share the same communication resources, resulting in increased spectral efficiency and throughput. NOMA has been shown to provide significant performance gains over orthogonal multiple access (OMA) in terms of spectral efficiency and throughput. In this paper, two scenarios of NOMA are analyzed and simulated, involving two users and multiple users (four users) in order to evaluate the performance of NOMA in terms of bits per error ratio (BER) and achievable sum-rate (R-sum), then comparing NOMA with OMA in terms of achievable sum rate. The obtained results indicate that an improvement is achieved for two users NOMA (16.7 (bps/Hz)) compared with OMA (15.53(bps/Hz)), while for multi-users NOMA (20.69 (bps/Hz)) compared with OMA (15.79 (bps/Hz)) at transmitted power equal to 25 dBm.
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References
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L. Dai et al., "A survey of non-orthogonal multiple access for 5G," vol. 20, no. 3, pp. 2294-2323, 2018.
Z. Wu, K. Lu, C. Jiang, and X. J. I. A. Shao, "Comprehensive study and comparison on 5G NOMA schemes," IEEE Access, 2018 - ieeexplore.ieee.org, vol. 6, pp. 18511-18519, 2018.
Q. Luo et al., "An error rate comparison of power domain non-orthogonal multiple access and sparse code multiple access," IEEE Open Journal …, 2021 - ieeexplore.ieee.org, vol. 2, pp. 500-511, 2021.
Q. Luo et al., "An error rate comparison of power domain non-orthogonal multiple access and sparse code multiple access," IEEE Open Journal …, 2021 - ieeexplore.ieee.org, vol. 2, pp. 500-511, 2021.
L. Dai et al., "A survey of non-orthogonal multiple access for 5G," surveys & tutorials, 2018 - ieeexplore.ieee.org, vol. 20, no. 3, pp. 2294-2323, 2018.
M. Hussain, H. J. W. C. Rasheed, and M. Computing, "Nonorthogonal multiple access for next-generation mobile networks: A technical aspect for research direction," Wireless Communications and Mobile …, 2020 - hindawi.com, vol. 2020, 2020.
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