System, and associated method, for utilizing block BLAST with PPIC in a MIMO multicode MC-CDMA system

摘要

A method for reducing interference in a MIMO MultiCode MC-CDMA system is disclosed wherein a BLAST algorithm is implemented over one block of correlation reception data yⁱ and estimation channel values H of the correlation reception data yⁱ to generate a group of temporary decision symbols C . One symbol, C_kⁱ, is selected having a maximum SNR value from the temporary decision symbols. The temporary decision symbols, C, other than the selected symbol, C_kⁱ, are combined with the estimated channel value H to recover a group of temporary interference signals over the selected symbol, C_kⁱ. The interference signals are subtracted from the correlation reception signal vector, yⁱ to generate a corrected reception signal vector yⁱ⁺¹, and a more accurate decision symbol C_kⁱ⁺¹ is identified from the corrected reception signal vector yⁱ⁺¹ and original estimation channel values. The foregoing steps are repeated for other symbols C_kⁱ.