Energy Efficiency Optimization of Massive MIMO System with Uplink Multi-Cell Based on Imperfect CSI with Power Control

In order to solve the energy efficiency optimization problem in uplink multi-cell massive MIMO system, this paper constructs system transmission model, of which channel is symmetry, based on user and base station, deduces expression data rate each user. Then, we establish a model spectral by analyzing pilot estimation. We also derive nonconvex function for optimization, difficult directly. Therefore, propose an improved particle swarm algorithm obtain suboptimal solution, under low complexity, optimizing distribution power. To demonstrate advantages our proposed algorithm, simulate performance algorithm. The results show that can effectively improve system.