Energy Efficiency Optimization for Cooperative SWIPT Network Based on Continuously Adjustable Power Splitter

Abstract

With the continuous improvement of wireless communication technology, expanding wireless communication infrastructures consume more energy than ever before. This situation raises the need to improve energy efficiency. This paper considers system energy efficiency optimization with SWIPT technology in cooperative wireless network. And as the value of power split ratio affects the energy efficiency of the transmission network, a continuously adjustable power splitter in the SWIPT receiver is designed. Based on the continuous power distribution coefficient ρ, we give a cooperative SWIPT transmission network model and a transmission energy efficiency optimization problem. Compared with the traditional SWIPT transmission scheme based on discrete power splitter, our method is more practical for engineering. Our simulation results demonstrate that our method can improve the energy efficiency of the transmission network.