Multiuser interference cancellation decision feedback equalizer with error feedback filter (MIC DFE-EFF)

for DS-CDMA

based on multiuser feedback structure

has been proposed.It has solved this problem that conventional adaptive decision feedback equalizer has higher bit error rate (BER) and smaller capacity.In this paper

we depict the structure of MIC DFE-EFF

analyse its algorithm and relative algorithm.It can deal with intersymbol interference (ISI)

multiple access interference (MAI) and noise at the same time.Simulation results show that the proposed MIC DFE-EFF outperforms conventional DFE、DFE-EFF and PIC at bit error rate (BER) performance

also its capacity is larger than DFE and DFE-EFF.Although MIC DFE-EFF increase computational complexity compared to DFE-EFF

its computational complexity is less than PIC.