Link adaptation as a technique to achieve information-theoretic limits in MIMO systems?

In this paper, we consider multiple-input-multiple-output (MIMO) systems based on multichannel beamforming (MB). We first consider capacity of the wireless communication systems for different modulation techniques and decision rules, and its extension for the open-loop and closed-loop MIMO systems. Eigenchannel power allocation and joint turbo coding and adaptive modulation are considered as a promising link adaptation techniques that should maximize achievable throughputs in considered MIMO systems.