Spectral-efficiency optimization for NOMA-based amplify-and-forward cooperative relaying systems with beamforming and power allocation

被引:4
作者
Yang, Kai [1 ]
Yan, Xiao [1 ]
Wang, Qian [1 ]
Wu, Hsiao-Chun [2 ]
Qin, Kaiyu [1 ]
机构
[1] Univ Elect Sci & Technol China, Sch Aeronaut & Astronaut, Chengdu 611731, Peoples R China
[2] Louisiana State Univ, Sch Elect Engn & Comp Sci, Baton Rouge, LA 70803 USA
基金
中国国家自然科学基金;
关键词
Non-orthogonal multiple-access (NOMA); Power allocation (PA); Relay beamforming-matrix (BM); Weighted-sum-minimum mean-squared-error (WSMMSE); Spectrum-efficiency (SE); NONORTHOGONAL MULTIPLE-ACCESS; SUCCESSIVE INTERFERENCE CANCELLATION; JOINT POWER; PERFORMANCE;
D O I
10.1007/s11276-021-02733-9
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, we propose a novel spectrum-efficiency (SE) optimization scheme for amplify-and-forward (AF) cooperative relaying systems based on non-orthogonal multiple-access (NOMA). In this network, a weighted-sum-minimum mean-squared-error (WSMMSE) method is utilized to transform the original non-convex optimization problem into a tractable optimization problem. Then, the relay beamforming-matrix (BM) and the power-allocation (PA) coefficients are alternately optimized by use of the iterative beamforming method and the Lagrange-multiplier (LM) method subject to the quality-of-service requirements. Monte Carlo simulation results verify that our proposed new scheme can attain better performance than the optimal PA-NOMA technique and the conventional orthogonal multiple-access (OMA) technique.
引用
收藏
页码:4123 / 4132
页数:10
相关论文
共 30 条
[1]   Cooperative Non-Orthogonal Multiple Access for Beyond 5G Networks [J].
Ahmed, Abbas ;
Elsaraf, Zeyad ;
Khan, Faheem A. ;
Ahmed, Qasim Zeeshan .
IEEE OPEN JOURNAL OF THE COMMUNICATIONS SOCIETY, 2021, 2 :990-999
[2]   Joint Power and Time Allocation for Two-Way Cooperative NOMA [J].
Bae, Jimin ;
Han, Youngnam .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2019, 68 (12) :12443-12447
[3]  
Boyd S., 2004, CONVEX OPTIMIZATION
[4]   Joint Optimization of Source Power Allocation and Distributed Relay Beamforming in Multiuser Peer-to-Peer Relay Networks [J].
Cheng, Yong ;
Pesavento, Marius .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2012, 60 (06) :2962-2973
[5]   A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends [J].
Ding, Zhiguo ;
Lei, Xianfu ;
Karagiannidis, George K. ;
Schober, Robert ;
Yuan, Jinhong ;
Bhargava, Vijay K. .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2017, 35 (10) :2181-2195
[6]   Application of Non-Orthogonal Multiple Access in LTE and 5G Networks [J].
Ding, Zhiguo ;
Liu, Yuanwei ;
Choi, Jinho ;
Sun, Qi ;
Elkashlan, Maged ;
I, Chih-Lin ;
Poor, H. Vincent .
IEEE COMMUNICATIONS MAGAZINE, 2017, 55 (02) :185-191
[7]   Joint Energy Efficient Subchannel and Power Optimization for a Downlink NOMA Heterogeneous Network [J].
Fang, Fang ;
Cheng, Julian ;
Ding, Zhiguo .
IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2019, 68 (02) :1351-1364
[8]  
Grant M., 2013, CVX: MATLAB Software for Disciplined Convex Programming
[9]  
Gupta A, 2018, IEEE INT WORK SIGN P, P21
[10]   Power-Domain Non-Orthogonal Multiple Access (NOMA) in 5G Systems: Potentials and Challenges [J].
Islam, S. M. Riazul ;
Avazov, Nurilla ;
Dobre, Octavia A. ;
Kwak, Kyung-Sup .
IEEE COMMUNICATIONS SURVEYS AND TUTORIALS, 2017, 19 (02) :721-742