A novel iterative equalization algorithm for multicode CDMA system with V-BLAST architecture

In this paper, a space-time iterative equalization algorithm for multi-code CDMA system with V-BLAST architecture (MC-VBLAST) is proposed. Also, a novel iterative equalization structure is obtained. The receiver performs two successive soft input soft output model, first from a MMSE equalizer and then from a turbo decoder. Soft information got from previous iteration is used as a priori information for the next iteration. Simulation results demonstrate that the proposed algorithm offers significant performance gain over traditional, non-iterative receiver structures.

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