Title :
MAP-DFE Detector for Downlink V-BLAST MC-CDMA Systems
Author :
Sarkiss, M. ; Yuan-Wu, Y.
Author_Institution :
R&D Div., France Telecom, Issy-les-Moulineaux
Abstract :
In this paper, multi-user detection (MUD) techniques are investigated for multiple input multiple output multi- carrier code division multiple access (MIMO MC-CDMA) systems. maximum a posteriori decision feedback equalizer (MAP-DFE) already introduced in MIMO systems is extended to the MC-CDMA downlink transmission. This detector cancels the Inter-Symbol Interference (ISI) on the basis of the a posteriori error probability estimation. In this context, we show through simulations that MAP-DFE performance improves significantly compared to other well-known detection techniques such as Minimum Mean Square Error (MMSE) and Block DFE (BDFE).
Keywords :
MIMO communication; code division multiple access; intersymbol interference; least mean squares methods; signal detection; MAP-DFE detector; MC-CDMA systems; MMSE; block DFE; carrier code division multiple access systems; downlink V-BLAST; intersymbol interference; maximum a posteriori decision feedback equalizer; minimum mean square error; multiple input multiple output systems; multiuser detection techniques; Decision feedback equalizers; Detectors; Downlink; Error probability; Interference cancellation; Intersymbol interference; MIMO; Multiaccess communication; Multicarrier code division multiple access; Multiuser detection;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.173
