Performance analysis of an adaptive-MCM system with combining AMC and MIMO schemes

In this paper, we propose an Adaptive Modulation Coding MIMO System (Adaptive-MCM), which results from the combination of two schemes: Adaptive Modulation and Coding (AMC) and Multiple Input Multiple Output (MIMO). A system using AMC improves its throughput and reliability, because the Channel Coding rate and the Modulation scheme are selected according to the channel conditions. We want to probe that if the MIMO scheme also changes adaptively, the resulting system will achieve a higher data rate and error performance. Through computer simulation, we analyze and compare the throughput performance of the Adaptive-MCM with a Non-Adaptive-MCM, which keeps fixed values of modulation, coding rate and MIMO scheme. The results show that the Adaptive-MCM presents a better trade-off between Signal to Noise Ratio (SNR) and throughput; and consequently, a better average data rate.