Exploiting Multiuser Diversity for MIMO Cellular Systems Using Packet Scheduling and the VBLAST Receiver

Several packet scheduling techniques for the downlink of a multiple-input multiple-output (MIMO) cellular system are investigated. The system capacity for three scheduling are investigated. The system capacity for three scheduling algorithms, the conventional round robin scheduling (RRS) the antenna-assisted round robin (AA-RRS) and a novel VBLAST AA-RRS, are evaluated. Computer simulations are used to compare these scheduling schemes in terms of the expected and outage capacities. The novel scheme has proven to be beneficial for the system performance.