Power Control for Cell-free Massive MIMO Based on AFSA

With the development of information technology nowadays, Cell massive multiple-input multiple-output (MIMO) system has gradually become the main technology of 5G communication systems. In previous studies, in order to realize the target of max-min power control, most researchers used the bisection algorithm to obtain the optimal solution. Then, since the bisection algorithm focuses on users with the smallest rate, the rate of other users will inevitably be sacrificed. This article introduces the artificial fish school algorithm to realize power control. Through the flexible setting of the objective function, the mean rate of users can be improved while achieving the max-min goal. CCS CONCEPTS •Computingmethodologies→Modeling and simulation; Model development and analysis.