Energy-Efficient Power Control for Device-to-Device Communications with Max-Min Fairness

被引:0
|
作者
Yang, Kai [1 ]
Wu, Jinsong [2 ]
Gao, Xiaozheng [1 ]
Bu, Xiangyuan [1 ]
Guo, Song [3 ]
机构
[1] Beijing Inst Technol, Sch Informat & Elect, Beijing, Peoples R China
[2] Univ Chile, Dept Elect Engn, Santiago, Chile
[3] Univ Aizu, Sch Comp Sci & Engn, Aizu Wakamatsu, Fukushima, Japan
基金
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词
Device-to-device (D2D) communications; power control; energy efficiency; max-min fairness; RESOURCE-ALLOCATION; MAXIMIZATION;
D O I
暂无
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 the energy-efficient power control for device-to-device (D2D) communications underlaying cellular networks with max-min fairness, where uplink resource blocks allocated to one cellular user equipment are reused by multiple D2D pairs to improve the frequency reuse factor, and the minimum individual energy efficiency (EE) is maximized. This is a generalized fractional programming (GFP) problem, and is hard to tackle due to its non-concave nature, which means the complexity of global optimal solution is unaffordable. In order to give sub-optimal solution with reasonable complexity, we first transform the GFP problem into equivalent optimization problem in a parametric subtractive form, and then add constraints on the co-channel interferences to convert the non-concave GFP problem into concave one. The sub-optimal solution, which can be obtained through solving the deduced concave problem based on sophisticated convex optimization methods, gives a tight lower bound on the optimal EE. Simulation results are presented to demonstrate the effectiveness of the proposed scheme.
引用
收藏
页数:5
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