Abstract
In this paper, we focus on the 1-bit precoding design for a multi-user massive multiple-input multiple-output (MIMO) system, where the concept of constructive interference (CI) is employed to formulate the optimization problem. By adopting the symbol-scaling CI metric, the formulated optimization problem is transformed such that the alternating direction method of multipliers (ADMM) framework can be used to solve this problem. Furthermore, we obtain the closed-form solution to the subproblem in each step within the ADMM iteration, thus achieving lower complexity. We further provide the computational complexity analysis of the proposed algorithm. Numerical experiments verify the superior bit error rate (BER) performance of the proposed ADMM-based CI precoding (CI-ADMM) scheme over the state-of-the-art, with proper initialization.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
