In order to address the unfair user-centric energy efficiency (EE) problem caused by channel difference in the backscatter-assisted wireless powered communication network. a resource allocation scheme was proposed. Firstly. a mixed integer nonconvex fractional programming problem was formulated to maximize the minimum user-centric EE. https://www.alarecre.com/Music-Is-Freedom-Google-Pixel-7-Pro-Skin-p67850/