In order to deal with the complex and ever-changing real-time communication environment and achieve the best communication effect, in this paper, various modules of the physical downlink simulation platform are introduced in detail and built in Matlab, the diversity and multiplexing modes are simulated respectively, then compare the throughput performance to get the basis of switching. Finally, the adaptive switching mechanism based on RI and SNR is introduced and analyzed, then the adaptive switching algorithm is designed and the switching be...
