Multiuser decision-feedback detectors for MC-DS/CDMA
Bin Xi · Systems engineering and electronics · 2005
We investigate the use of minimum mean-squared error (MMSE) multiuser decision-feedback detectors(DFDs) for a multicarrier direct-sequence code-division multiple-access (MC-DS/CDMA) system. Reative to conventional DS-CDMA system, MC-DS/CDMA system can overcome the frequency-selective fading effectively. Here, we use equal gain combination (EGC) and maximal rate combination (MRC) to combine the detected results on each carrier. In the simulation, we'll see that MMSE DFD EGC and MMSE DFD MRC have better performance than LMMSE.