Energy Efficiency Optimization Algorithm(OA) for Large-Scale MIMO Precoding Based on Channel State

Large scale MIMO technology will become one of the core technologies of future mobile communication systems, and its energy efficiency has become a hot topic in the field of green communication. The existing energy efficiency algorithms only consider the impact of the number of antennas on the system efficiency, while ignoring the impact of other parameters on the efficiency. Therefore, this paper studies and analyzes the energy efficiency OA of large-scale MIMO precoding using channel state. In large-scale MIMO systems, the precoding method is the result of comprehensive consideration of complexity and performance. In this paper, the energy efficiency OA of large-scale MIMO precoding based on channel state is studied and analyzed. Firstly, the theory and methods of large-scale MIMO precoding and channel estimation are briefly described, and some efficiency optimization methods suitable for large-scale MIMO systems are introduced; Then, on this basis, the energy efficiency OA of large-scale MIMO precoding is studied; Finally, through the simulation experiment of the efficiency improvement method in the case of single user system with known CSI and unknown CSI, the effectiveness and feasibility of the proposed method in improving the system efficiency are further proved.