Performance Trade-off Method for Energy Efficiency and Spectral Efficiency in Massive-MIMO System

被引：0
|
作者：
Li M.-Z. [1 ,2 ]
Ding J. [3 ]
Liu N. [3 ]
Wang H. [3 ]
机构：
[1] School of Electronic Information Engineering, Shanghai Dianji University, Shanghai
[2] Guangxin Information Science Research Centre, Guilin
[3] School of Computer and Information Security, Guilin University of Electronic Technology, Guilin
来源：
Beijing Youdian Daxue Xuebao/Journal of Beijing University of Posts and Telecommunications | 2020年 / 43卷 / 04期
关键词：
Convex optimization; Multi-objective optimization; Performance trade-off; Trade-off factor;
D O I：
10.13190/j.jbupt.2019-163
中图分类号：
学科分类号：
摘要：
In massive-multiple input multiple output (massive-MIMO) multi-user system, the existing energy efficiency (EE) and spectral efficiency (SE) trade-off performance methods cannot adapt to the changing scenarios for single objective optimization, and thus cannot effectively track the optimization objectives. To solve this problem, a trade-off method of energy efficiency and spectral efficiency is proposed, which can adapt to the changing scenarios. By constructing a trade-off optimization function between them, the non-convex multi-objective optimization problem is transformed into a single-objective convex optimization problem, and solved by Lagrange multiplier method. The theoretical analysis and simulation results show that the proposed trade-off method can change the system energy efficiency or spectral efficiency by setting a trade-off factor under the power consumption limitation of the system circuit, and simultaneously obtain the optimal performance trade-off of energy efficiency and spectral efficiency. © 2020, Editorial Department of Journal of Beijing University of Posts and Telecommunications. All right reserved.
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页码：61 / 67
页数：6
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