Power Allocation Scheme for Maximizing Energy Efficiency in Downlink NOMA Systems

doi:10.13190/j.jbupt.2020-031

Journal of Beijing University of Posts and Telecommunications ›› 2021, Vol. 44 ›› Issue (1): 38-44.doi: 10.13190/j.jbupt.2020-031

• PAPERS • Previous Articles Next Articles

Power Allocation Scheme for Maximizing Energy Efficiency in Downlink NOMA Systems

TIAN Xin-ji, JIANG Qing-li

School of Physics and Electronic Information Engineering, Henan Polytechnic University, Jiaozuo 454000, China

Received:2020-03-24 Online:2021-02-28 Published:2021-09-30

Abstract

Abstract: A power allocation scheme to maximize energy efficiency is proposed for downlink non-orthogonal multiple access(NOMA)system with multiple clusters and each cluster containing arbitrarily user. Firstly,the minimum powers required for a single user and a single cluster are derived to meet successive interference cancellation. The optimization problem of power allocation among users is established to maximize the energy efficiency of the system. Then,the power allocation optimization problem of maximizing the energy efficiency of a single cluster is solved by using bisection method. Based on this conclusion,the optimization problem of power allocation among users to maximize the energy efficiency of the system is transformed into the optimization problem of power allocation among clusters. Finally,the power for each user is obtained according to the inter-cluster power allocation,which is get by an iterative scheme. Simulations show that the energy efficiency of the proposed scheme is better than that of the existing scheme in the same scenario.

Key words: non-orthogonal multiple access, energy efficiency, successive interference cancellation, bisection method, power allocation

CLC Number:

TN911.22

TIAN Xin-ji, JIANG Qing-li. Power Allocation Scheme for Maximizing Energy Efficiency in Downlink NOMA Systems[J]. Journal of Beijing University of Posts and Telecommunications, 2021, 44(1): 38-44.

References

[1] Dai Linglong, Wang Bichai, Yuan Yifei, et al. Non-orthogonal multiple access for 5G:solutions, challenges, opportunities, and future research trends[J]. IEEE Communications Magazine, 2015, 53(9):74-81.
[2] Riazul Islam S M, Avazoy N, Dobre O A, et al. Power-domain non-orthogonal multiple access(NOMA)in 5G systems:potentials and challenges[J]. IEEE Communications Surveys & Tutorials, 2017, 19(2):721-742.
[3] Kim S, Kim H, Hong D. Joint power allocation and MCS selection in downlink NOMA system[C]//IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications(PIMRC). Bologna:IEEE Press, 2018:1-4.
[4] Yaru Fu, Salaün L, Sung C W, et al. Subcarrier and power allocation for the downlink of multicarrier NOMA systems[J]. IEEE Transactions on Vehicular Technology, 2018, 67(12):11833-11847.
[5] Tsai Y R, Wei H A. Quality-balanced user clustering schemes for non-orthogonal multiple access systems[J]. IEEE Communications Letters, 2018, 22(1):113-116.
[6] Glei N, Chibani R B. Power allocation for energy-efficient downlink NOMA systems[C]//Sciences and Techniques of Automatic Control and Computer Engineering(STA). Sousse:IEEE Press, 2019:611-613.
[7] Zhang Yi, Wang Huiming, Zheng Tongxing, et al. Energy-efficient transmission design in non-orthogonal multiple access[J]. IEEE Transactions on Vehicular Technology, 2017, 66(3):2852-2857.
[8] 陆音, 包宽鑫, 谢浩然. 一种基于能量效率和用户公平的NOMA下行链路功率分配方案[J]. 南京邮电大学学报(自然科学版), 2019, 39(4):9-15. Lu Yin, Bao Kuanxin, Xie Haoran. NOMA downlink power distribution scheme based on energy efficiency and user equity[J]. Journal of Nanjing University of Posts and Telecommunications(Natural Science Edition), 2019, 39(4):9-15.
[9] Liu Gongliang, Ruisong, Haijun, et al. Super-modular game-based user scheduling and power allocation for energy-efficient NOMA network[J]. IEEE Transactions on Wireless Communications, 2018, 17(6):3877-3888.
[10] Yang Zhaohui, Wei Cunhua, et al. On the optimality of power allocation for NOMA downlinks with individual QoS constraints[J]. IEEE Communications Letters, 2017, 21(7):1649-1652.

[1]	PENG Yi, WU Tong, YANG Qingqing. Alternate Optimization Beamforming Method for Downlink RIS-NOMA System [J]. Journal of Beijing University of Posts and Telecommunications, 2023, 46(4): 64-69.
[2]	. Performance and optimization of NOMA-MEC networks with hardware impairments [J]. Journal of Beijing University of Posts and Telecommunications, 2023, 46(2): 64-70.
[3]	Kunming Dong bin shen Hui linJIANG. Outage Performance Analysis and Power Allocation Research of CR-NOMA System on Coordinated Direct and FD Relay Transmission [J]. Journal of Beijing University of Posts and Telecommunications, 2022, 45(6): 92-97.
[4]	. Physical Layer Security for IRS-based Cognitive NOMA V2V Network [J]. Journal of Beijing University of Posts and Telecommunications, 2022, 45(6): 131-137.
[5]	LI Meiling, YANG Xiaoxia, CHENG Wenjie, LU Zhaoming. Physical Layer Security for CR-NOMA System in Vehicle-to-Everything [J]. Journal of Beijing University of Posts and Telecommunications, 2022, 45(1): 115-120.
[6]	HU Xiang-ge, WU Guang-fu, LI Tao, PENG De-yi. Power Allocation Scheme for MIMO-NOMA System Based on QoE [J]. Journal of Beijing University of Posts and Telecommunications, 2021, 44(4): 62-67.
[7]	HUANG Xiao-ge, WANG Yong-sheng, LAI Chen-bin, CHEN Qian-bin. Trust Degree Based RSU Recognition and Resource Allocation in Vehicular Networks [J]. Journal of Beijing University of Posts and Telecommunications, 2021, 44(2): 109-115.
[8]	PAN Zi-yu, YANG Jie. Energy Efficiency Optimization for Ultra Dense Heterogeneous Cellular Networks [J]. Journal of Beijing University of Posts and Telecommunications, 2021, 44(1): 20-25,58.
[9]	XUE Jian-bin, LIU Xing-xing, DING Xue-qian. Energy Efficiency Optimization Scheme Based on Energy Harvesting in Mobile Edge Computing [J]. Journal of Beijing University of Posts and Telecommunications, 2020, 43(5): 15-20.
[10]	TIAN Xin-ji, JIANG Qing-li. Maximum Fairness Power Allocation Scheme in Downlink Multi-Cell NOMA Systems [J]. Journal of Beijing University of Posts and Telecommunications, 2020, 43(5): 130-136.
[11]	LIU Zhi-chao, ZHAO Yi-sheng, GAO Jin-cheng, CHEN Zhong-hui. UAV-Assisted Time Division Power Allocation Strategy Based on RF Energy Harvesting [J]. Journal of Beijing University of Posts and Telecommunications, 2020, 43(3): 24-31.
[12]	LI Min-zheng, LI Yan-feng. Research on Downlink Energy Efficiency of Multi-Cell Massive Distributed Antenna System [J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2018, 41(6): 26-33.
[13]	LI Mei-ling, TIAN Li-li, WANG An-hong, LU Zhao-ming, LIANG Jie. Research on Performance of Best Relay Based NOMA System with Multi-User [J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2018, 41(5): 120-125.
[14]	JIANG Cheng-xin, WU Zhan-ji. A Novel Low Density Superposition Modulation Scheme for Uplink NOMA [J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2018, 41(3): 14-19.
[15]	HU Chang-jun, YUAN Shu-jie. An Adaptive Data Collection Method of Energy Efficiency and Energy Consumption Balance in WSN for Coal Mines [J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2018, 41(2): 86-91.

Power Allocation Scheme for Maximizing Energy Efficiency in Downlink NOMA Systems

RichHTML

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments