ADMM for 1-bit DACs Quantization Precoding in Antenna Selection-Assisted Massive MU-MIMO

In massive multi-user multiple-input multiple-output (MU-MIMO) systems, to reduce the system power consumption, we propose an 1-bit digital-to-analog converters (DACs) quantization antenna selection-assisted massive MU-MIMO system and formulate a 1-bit precoding non-convex optimization problem. To solve the problem, we introduce the sparsity parameter and ℓ
1
-norm to relax the constraint of the antenna selection and use the alternating direction method of multipliers (ADMM) as the core method. Finally, simulation results demonstrate that, compared with existing algorithms, our algorithm significantly reduces the power consumption while ensuring the stability of system.