Energy efficiency optimization for wireless powered relay networks

被引：0

作者：

Zhu, Jinxin ^{[1
]}

Shao, Jun ^{[1
]}

机构：

[1] School of Information Technology, Yancheng Institute of Technology, Yancheng,224051, China

来源：

Progress In Electromagnetics Research M | 2020年 / 95卷

关键词：

Constrained optimization - Mathematical programming - Energy efficiency - Relay control systems - Spectrum efficiency;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

—In this paper, we focus on the energy efficiency (EE) optimization for an amplify-andforward (AF) relay network, where the energy-constrained relay harvests energy from a transmitter using power splitting (PS) scheme. We aim to maximize the EE of the network via jointly optimizing the transmit precoding, relay beamforming, and PS ratio, under the constraints of transmit power and spectral efficiency. To solve the formulated fractional programming, we approximate the problem via two layer optimization, where the outer problem is handled by the Dinkelbach method, and the inner problem is solved by penalized difference-of-convex (DC) and constrained concave-convex procedure (CCCP). Finally, an iterative method is proposed. Simulation results demonstrate the performance of the proposed design. © 2020, Electromagnetics Academy. All rights reserved.

引用

页码：25 / 34