Study On Pre-coding Technology And User Scheduling Based On SLNR In MIMO System

Pro-coding techonology and user scheduling technology, are key technologies of the wireless communication systems.In multi-user MIMO system,based on SLNR pecoding scheme can be considered both noise and signal leakage, enables the system to achieve better performance,but the system can service a limited number of users at the same time, therefore, when the number of users is large, need to take reasonable scheme into user scheduling. This paper focuses on the pre-coding and user scheduling launched a study, focused on the pre-coding algorithm based on the SLNR and user scheduling scheme.This paper started with an introduction of MIMO and its relevant theoretical knowledge, and in single-user and multi-user conditions, analysis the system capacity simply. Then,discuss several typical pre-coding algorithm and common user scheduling scheme in the MIMO system, and studied user scheduling scheme based on the SLNR.Finally, in SLNR algorithm conditions,this paper with the principle of maximizing capacity, proposed optimal and suboptimal user scheduling scheme,and introduce the computer simulation and analysis.