Energy Efficient Resource Allocation of Cooperative Non-Orthogonal Multiple Access with Hardware Impairments

被引：1
|
作者：
Fan, Zifu [2 ]
Zhang, Hongjia [1 ,2 ]
Wang, Zhengqiang [1 ,2 ]
Wan, Xiaoyu [2 ]
Lin, Xiaochen [3 ]
机构：
[1] Chongqing Univ Posts & Telecommun, Sch Commun & Informat Engn, Chongqing, Peoples R China
[2] Chongqing Univ Posts & Telecommun, Inst Next Generat Network, Chongqing, Peoples R China
[3] Shanghai Dianji Univ, Sch Elect Informat Engn, Shanghai, Peoples R China
来源：
2019 IEEE 20TH INTERNATIONAL CONFERENCE ON HIGH PERFORMANCE SWITCHING AND ROUTING (IEEE HPSR) | 2019年
关键词：
cooperative non-orthogonal multiple access; hardware impairments; resource allocation; energy efficiency; fractional programming; POWER ALLOCATION; NETWORKS; NOMA;
D O I：
10.1109/hpsr.2019.8808098
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we investigate energy-efficient resource allocation for downlink cooperative non-orthogonal multiple access (C-NOMA) systems, where a source node communicates with two users via an amplify-and-forward (AF) relay with hardware impairment (HI) conditions. We first derive the energy efficiency (EE) of the system with HI under the power constraint of the source, relay and minimum signal to interference plus noise ratio (SINR) requirement of each user. Then, fractional programming is utilized to convert the energy efficient optimization problem into a subtractive form. Next, a joint power and amplification gain allocation algorithm is proposed to maximize the system energy efficiency (EE) based on Lagrangian dual and Dinkelbach method. Simulation results show that the proposed algorithm can improve the system EE compared with the orthogonal multiple access (OMA) scheme.
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收藏
页数：5
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