Dynamic Power Allocation for Downlink NOMA

Authors

DOI:

https://doi.org/10.24086/cuesj.v8n1y2024.pp85-90

Keywords:

Non-orthogonal multiple access, Rayleigh channel, user pairing, power allocation, outage probability

Abstract

Dynamic Power Allocation for Downlink Non-Orthogonal Multiple Access (NOMA) is a critical research area in wireless communication systems. This study focuses on implementing and evaluating dynamic power allocation strategies in the context of downlink NOMA. We compare the performance of dynamic power allocation with fixed power allocation schemes to assess their impact on system throughput, interference management, and overall efficiency. Through extensive simulations and analysis in this paper using MATLAB, we demonstrate a comparison between dynamic power allocation and fixed power allocation, and the advantages of dynamic power allocation in adapting to changing channel conditions and user requirements, leading to improved system performance. Our results show the data rate and outage probability which provides valuable insights into the benefits of dynamic power allocation in downlink NOMA systems and highlight the importance of adaptive power management techniques in enhancing wireless communication networks.

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Author Biographies

Yazen S. Almashhadani, Department of Communication and Computer Engineering, Cihan University-Erbil, Kurdistan Region, Iraq

Yazen S. Almashhadani is an assistant lecturer at the Department of Communication and Computer Engineering, Cihan University-Erbil, Kurdistan Region, Iraq. His research interests are computer engineering and communication.

Ghassan A. QasMarrogy, Department of Informatics and Software, Cihan University-Erbil, Kurdistan Region, Iraq

Ghassan A. Qasmarrogy is an assistant professor at the Department of Informatics and Software, Cihan University-Erbil, Kurdistan Region, Iraq. His research interests are computer science, engineering and communication. 

References

Y. S. Mahmood and G. A. Qasmarrogy. Capacity analysis of multiple-input-multiple-output system over rayleigh and rician fading channel. Cihan University-Erbil Scientific Journal, vol. 3, no. 2, pp. 70-74, 2019.

G. A. H. QasMarrogy. IEEE 802.16 E&M systems bandwidth resource allocation performance investigation. Journal of Engineering and Sustainable Development, vol. 23, no. 4, pp. 155-169, 2019.

Y. S. Almashhadani, H. J. Alqaysi and G. A. QasMarrogy. Performance Analysis of OFDM with Different Cyclic Prefix Length. In: Conference of Cihan University-Erbil on Communication Engineering and Computer Science, p. 66, 2017.

H. Zhang, B. Wang, C. Jiang, K. Long, A. Nallanathan, V. C. Leungand H. V. Poor. Energy efficient dynamic resource optimization in NOMA system. IEEE Transactions on Wireless Communications, vol. 17, no. 9, pp. 5671-5683, 2018.

P. Liu, Y. Li, W. Cheng, W. Zhang and X. Gao. Energy-efficient power allocation for millimeter wave beam space MIMO-NOMA systems. IEEE Access, vol. 7, pp. 114582-114592, 2019.

S. H. Saeed and I. K. Sileh. Performance analysis of cooperative NOMA for different power allocation strategies. Tikrit Journal of Engineering Sciences, vol. 30, no. 4, pp. 102-117, 2023.

X. Li, Q. Wang, M. Liu, J. Li, H. Peng, M. J. Piran and L. Li. Cooperative wireless-powered NOMA relaying for B5G IoT networks with hardware impairments and channel estimation errors. IEEE Internet of Things Journal, vol. 8, no. 7, pp. 5453-5467, 2020.

M. Al-Imari, P. Xiao, M. A. Imran and R. Tafazolli. Uplink Nonorthogonal Multiple Access for 5G Wireless Networks. In: 2014 11th International Symposium on Wireless Communications Systems (ISWCS). IEEE, pp. 781-785, 2014.

O. Maraqa, A. S. Rajasekaran, S. Al-Ahmadi, H. Yanikomeroglu and S. M. Sait. A survey of rate-optimal power domain NOMA with enabling technologies of future wireless networks. IEEE Communications Surveys and Tutorials, vol. 22, no. 4, pp. 2192-2235, 2020.

G. A. H. QasMarrogy. IEEE 802.16 E&M systems bandwidth resource allocation performance investigation. Journal of Engineering and Sustainable Development, vol. 23, no. 4, pp. 155-169, 2019.

Z. Yang, Z. Ding, P. Fan and N. Al-Dhahir. The impact of power allocation on cooperative non-orthogonal multiple access networks with SWIPT. IEEE Transactions on Wireless Communications, vol. 16, no. 7, pp. 4332-4343, 2017.

L. Bhardwaj, R. K. Mishra and R. Shankar. Sum rate capacity of non-orthogonal multiple access scheme with optimal power allocation. The Journal of Defense Modeling and Simulation, vol. 19, no. 4, pp. 759-769, 2022.

Published

2024-06-30

How to Cite

1.
Almashhadani YS, QasMarrogy GA. Dynamic Power Allocation for Downlink NOMA. Cihan U Erbil SCI J [Internet]. 2024 Jun. 30 [cited 2026 Jun. 23];8(1):85-90. Available from: https://journals.cihanuniversity.edu.iq/index.php/cuesj/article/view/1204

Issue

Section

Review Article

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