Resource allocation algorithm for wireless energy harvesting cooperative network integrating uplink and downlink

被引：0

作者：

Zhou X.-T. ^{[1
]}

Xiao K. ^{[1
]}

机构：

[1] School of Electronic and Information Engineering, Guangxi Normal University, Guilin

来源：

Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2023年 / 57卷 / 12期

关键词：

energy efficiency; energy harvesting (EH); resource allocation; spectrum sharing; wireless cooperative network;

D O I：

10.3785/j.issn.1008-973X.2023.12.021

中图分类号：

学科分类号：

摘要：

The energy-efficient resource allocation algorithm was studied in the wireless energy harvesting (EH) cooperative network, in order to improve and balance the energy efficiency between uplink and downlink of the time division duplex system. A cooperative network system model considering wireless EH, spectrum sharing and system power constraints was established. Based on the established model, the system’s optimization problems of harvesting and traditional energy efficiency were formed, which integrating uplink and downlink, power constraints, bandwidth constraints and rate matching for uplink and downlink. The optimal solutions of resource allocation were obtained by mathematical analysis of the optimization problems, including the optimal transmit power of the source node, the relay node and the destination node, the optimal bandwidth allocation of the uplink and downlink, the optimal power splitting of the EH node and the optimal system energy efficiency. A resource allocation algorithm based on maximization of harvesting energy efficiency and maximization of energy efficiency was obtained. Monte Carlo simulation was carried out based on the model and the algorithm, and the algorithm was compared with the literature algorithms. Simulation results show that the algorithm effectively improves the harvesting energy efficiency and traditional energy efficiency by comprehensively optimizing resource allocation of uplink and downlink. © 2023 Zhejiang University. All rights reserved.

引用

页码：2544 / 2552

页数：8

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