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

An apparatus, comprising:

• a plurality of cycle prefix fast Fourier transform deletion modules configured to delete the cycle prefix and fast Fourier transform modulation from the data symbols received on a respective antenna configured modulated symbols, to thereby generate demodulated data symbols;
• a plurality of spreading code matrix modules coupled to a respective cycle prefix fast Fourier transform deletion module to generate a spreading code matrix Sm from said demodulated data symbols;
• a plurality of channel matrix modules coupled to a respective spreading code matrix module to generate a channel matrix Hm and configured to correlate the demodulated symbols with said spreading code matrix Sm and the channel matrix Hm to obtain a correlation reception vector ym;
• a plurality of summers coupled to each of said plurality of channel matrix modules to add the correlation reception vectors ym generated from each of said plurality of channel matrix modules to generate a whole correlation reception vector y;
• and
• a bell labs space time algorithm partially parallel interference cancellation module coupled to each of said plurality of summers to implement a bell labs space time algorithm partially parallel interference cancellation algorithm over the correlation reception vector y, to thereby recover original transmission bits over the different antennas, wherein said bell labs space time algorithm partially parallel interference cancellation algorithm further comprises,
• implementing the bell labs space time algorithm partially parallel interference cancellation algorithm 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;
• selecting one symbol, Cik, having a maximum signal to noise ratio value from said temporary decision symbols;
• computer program code to combine said temporary decision symbols, C, other than the selected symbol, Cik, with the estimation channel values H to recover a group of temporary interference signals over said selected symbol, Cik;
• subtracting said interference signals from said correlation reception data, yi to generate a corrected reception signal vector yi+1;
• identifying a more accurate decision symbol Ci+1k from the corrected reception signal vector yi+1 and the estimation channel values;
• and
• repeating the above operations for other symbols Cik{circumflex over k}.

A system, comprising:

• a plurality of multiple input multiple output multi-carrier code division multiple access transmitter systems;
• and
• a multiple input multiple output multi-carrier code division multiple access receiver system utilizing a bell labs space time algorithm partially parallel interference cancellation algorithm, wherein said bell labs space time algorithm partially parallel interference cancellation algorithm further comprises,
• implementing the bell labs space time algorithm partially parallel interference cancellation algorithm 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;
• selecting one symbol Cik, having a maximum signal to noise ratio value from said temporary decision symbols;
• combining said temporary decision symbols, C, other than the selected symbol, Cik, with the estimation channel values H to recover a group of temporary interference signals over said selected symbol, Cik;
• subtracting said interference signals from said correlation reception data, yi to generate a corrected reception signal vector yi+1;
• computer program code to identify a more accurate decision symbol Cik from the corrected reception signal vector yi+1 and the estimation channel values;
• and
• repeating the above operations for other symbols Cik{circumflex over k}.

A computer program embodied on a computer readable medium, said computer program configured to control a processor to perform:

• implementing a bell labs space time algorithm 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;
• selecting one symbol, Cik, having a maximum signal to noise ratio value from said temporary decision symbols;
• combining said temporary decision symbols, C , other than the selected symbol, Cik, with the estimation channel values H to recover a group of temporary interference signals over said selected symbol, Cik;
• subtracting said interference signals from said correlation reception data, yi to generate a corrected reception signal vector yi+1;
• identifying a more accurate decision symbol Ci+1k from the corrected reception signal vector yi+1 and the estimation channel values;
• and
• repeating the above operations using other symbols Cik{circumflex over k}.