A Novel OSSMIC Receiver for Downlink MIMO MC-CDMA Systems

In this paper, a chip level Ordered Successive Spatial and Multiuser Interference Cancellation (OSSMIC) receiver architecture is presented for downlink Multiple-Input Multiple-Output Multi-Carrier Code Division Multiple Access (MIMO MCCDMA) systems. The proposed receiver performs ordered layer space-time detection. Unlike the existing Ordered Successive Interference Cancellation (OSIC) receiver, the proposed receiver cancels both spatial & multiuser interference in the SIC process. This allows detection in multiuser scenario, which is not possible in conventional chip level OSIC receiver.