Massive-MIMO系统中能效和频效的性能折中方法

doi:10.13190/j.jbupt.2019-163

北京邮电大学学报 ›› 2020, Vol. 43 ›› Issue (4): 61-67.doi: 10.13190/j.jbupt.2019-163

Massive-MIMO系统中能效和频效的性能折中方法

李民政^1,2, 丁健³, 刘宁³, 王浩³

1. 上海电机学院电子信息学院, 上海 201306;
2. 广西信息科学实验中心, 桂林 541004;
3. 桂林电子科技大学计算机与信息安全学院, 桂林 541004

收稿日期:2019-08-05 发布日期:2020-08-15
作者简介:李民政(1972-),男,教授,E-mail:minzhengli@126.com.
基金资助:
国家自然科学基金项目（61362007）；广西信息科学实验中心项目（YB1407）；广西可信软件重点实验室基金项目（KX201414）

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

LI Min-zheng^1,2, DING Jian³, LIU Ning³, WANG Hao³

1. School of Electronic Information Engineering, Shanghai Dianji University, Shanghai 201306, China;
2. Guangxin Information Science Research Centre, Guilin 541004, China;
3. School of Computer and Information Security, Guilin University of Electronic Technology, Guilin 541004, China

Received:2019-08-05 Published:2020-08-15

摘要/Abstract

摘要： Massive-MIMO多用户系统中，现有能效（EE）和频效（SE）性能折中方法在单个目标优化时无法适应变化场景，进而无法对优化目标进行有效追踪.对此，提出了一种能够适应变化场景需求的能效和频效性能折中方法.通过构建折中优化函数，将非凸的多目标优化问题转化为单目标凸优化问题，并利用拉格朗日乘子法进行求解.理论分析和仿真结果表明，提出的性能折中方法能够在系统电路功耗的限制下，通过设定折中因子改变系统能效值或频效值，并同时获取能效和频效的最佳性能折中.

关键词: 多目标优化, 凸优化, 性能折中, 折中因子

Abstract: 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.

Key words: multi-objective optimization, convex optimization, performance trade-off, trade-off factor

中图分类号:

TN929.5

李民政, 丁健, 刘宁, 王浩. Massive-MIMO系统中能效和频效的性能折中方法[J]. 北京邮电大学学报, 2020, 43(4): 61-67.

LI Min-zheng, DING Jian, LIU Ning, WANG Hao. Performance Trade-off Method for Energy Efficiency and Spectral Efficiency in Massive-MIMO System[J]. Journal of Beijing University of Posts and Telecommunications, 2020, 43(4): 61-67.

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Massive-MIMO系统中能效和频效的性能折中方法

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

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