Research Article
Energy Efficiency Optimization for RF Energy Harvesting Relay System
@INPROCEEDINGS{10.1007/978-3-030-68737-3_4, author={Guangjun Liang and Jianfang Xin and Qun Wang and Lingling Xia and Meng Li}, title={Energy Efficiency Optimization for RF Energy Harvesting Relay System}, proceedings={Broadband Communications, Networks, and Systems. 11th EAI International Conference, BROADNETS 2020, Qingdao, China, December 11--12, 2020, Proceedings}, proceedings_a={BROADNETS}, year={2021}, month={2}, keywords={RF energy harvesting Energy efficiency Power allocation Subcarrier pairing}, doi={10.1007/978-3-030-68737-3_4} }- Guangjun Liang
Jianfang Xin
Qun Wang
Lingling Xia
Meng Li
Year: 2021
Energy Efficiency Optimization for RF Energy Harvesting Relay System
BROADNETS
Springer
DOI: 10.1007/978-3-030-68737-3_4
Abstract
This paper conducts research on the RF energy harvesting relay network, and proposes an improved energy harvesting relay protocol, which allows the energy harvesting source node to retransmit data to improve the system diversity gain, and constructs energy harvesting slot allocation, subcarrier pairing, and power Optimized model of distributed system energy efficiency. A resource allocation algorithm based on optimal energy efficiency is further proposed. The Dinkelbach method is used to transform the nonlinear programming problem into a linear programming problem. Then, the Hungarian algorithm and the sub-gradient method are used to obtain the iterative algorithm based on energy efficiency optimization. Simulation shows that the algorithm reduces the complexity of the algorithm and has good global convergence.
