A study of multi-input multi-output (MIMO) channel model and its impact on the capacity

Throughout the history of wireless communications, spatial antenna diversity has been important in improving the radio link between the wireless users. MIMO system is prevalent in research field and some applications. In this article, we review some important MIMO models and give impulse response matrix and the corresponding necessary channel parameters. It is shown that different models have different construct and analysis complexity. This article describes the concept of MIMO system and explains the features of selected MIMO models.