PROSCHED FOR MIMO SYSTEMS WITH MULTIPLE BASE STATIONS AND A CENTRAL CONTROLLER

Wireless communications systems with multiple antennas at the transmitter can serve multiple terminals at the same tim by exploiting the spatial domain. In a transmission scheme which also uses other orthogonal resources such as time and frequency, a different subset of terminals can be assigned t o each resource element. If joint spatial processing is perfo rmed at the base station, the subset selection must avoid to group users with spatially correlated channels to prevent a sever e throughput degradation. The selection process is computationally very complex because the performance of the spatia l processing depends on the user combination to be served. To significantly reduce the complexity, we have developed the ProSchedapproach. In this contribution we show how it can be extended to schedule terminals in a scenario with multipl e interfering base stations and investigate its performance using computer simulations based on the realistic channel mod el IlmProp.