An Optimization Algorithm for Wireless Powered Cooperative Communication Network to Improve Throughput

MI Hong; ZHENG Ying

doi:10.15892/j.cnki.djzdxb.2023.02.002

Journal of Projectiles, Rockets, Missiles and Guidance >

2023 , Vol. 43 >Issue 2: 7 - 11

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2023.02.002

An Optimization Algorithm for Wireless Powered Cooperative Communication Network to Improve Throughput

MI Hong ,
ZHENG Ying

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School of Electronics and Information Engineering, Nanjing Vocational Institute of Transport Technology,Nanjing 211188, Jiangsu, China

Received date: 2022-05-13

Online published: 2025-02-24

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Abstract

In order to improve the throughput of wireless powered cooperative communication networks (WPCCN), transmission time allocation and relay selection-based throughput maximization (TARM) algorithm is proposed in this paper. In TARM, objective function of maximizing throughput is established first and then solved by two-step method. The first step is to select relay with large SNR and assign it to user. In the second step, the objective function based on Lagrange function is established for a predetermined relay allocation scheme, and Lagrange multiplier is updated iteratively by gradient method. Simulation results show that the TARM algorithm performs very close to exhaustive search algorithm and the sum throughput of the network can be increased significantly by using a proper relay selection technique.

Key words： wireless powered cooperative communication network; throughput maximization; relay selection; Lagrange algorithm; gradient method

Cite this article

MI Hong , ZHENG Ying . An Optimization Algorithm for Wireless Powered Cooperative Communication Network to Improve Throughput[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2023 , 43(2) : 7 -11 . DOI: 10.15892/j.cnki.djzdxb.2023.02.002

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