Dynamic Power Allocation for Downlink NOMA
DOI:
https://doi.org/10.24086/cuesj.v8n1y2024.pp85-90Keywords:
Non-orthogonal multiple access, Rayleigh channel, user pairing, power allocation, outage probabilityAbstract
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.
Downloads
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.
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License [CC BY-NC-ND 4.0] that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).



