On the Performance of Scheduling over Space-Time Architectures

In this paper, a unified comparison of space-time architectures paired with scheduling algorithms is presented. We define a new performance metric, which encapsulates both the spectral and energy efficiency of the scheme and consider various types of space-time architectures, including space-time block coding and BLAST. We consider a scenario in whichK active data users, each of which is equipped with multiple antenna elements, report their channel state information (CSI) to a multi-antenna element base station (BS). Using a scoring function at the BS, time resources are allocated to the users in order to facilitate multiuser diversity which enhances the overall throughput of the system.