Title :
Sectorized space-time adaptive processing for CDMA systems
Author :
Yang, Kehu ; Mizuguchi, Yoshihiko ; Zhang, Yimin
Author_Institution :
ATR Adaptive Commun. Res. Labs., Kyoto, Japan
Abstract :
Space-time adaptive processing (STAP) is an effective technique for suppressing both the multiuser access interference (MUAI) and the intersymbol interference (ISI) in wideband CDMA mobile communication systems. However, its complexity is one of the key problems in practical implementations. In this paper we propose adaptive antenna techniques that realize low-complexity space-time adaptive processing within a given spatial sector by spatial-smoothing subarray beamforming sectorization. The proposed technique has performance close to that of the associated optimum element-space STAP system
Keywords :
adaptive antenna arrays; array signal processing; code division multiple access; interference suppression; intersymbol interference; mobile radio; multiuser channels; space-time adaptive processing; CDMA systems; ISI; STAP; adaptive antenna techniques; complexity; interference suppression; intersymbol interference; mobile communication systems; multiuser access interference; performance; space-time adaptive processing; spatial-smoothing sectorization; subarray beamforming sectorization; wideband CDMA; Adaptive arrays; Adaptive systems; Antenna arrays; Array signal processing; Interference suppression; Intersymbol interference; Mobile communication; Multiaccess communication; Multiple access interference; Wideband;
Conference_Titel :
Statistical Signal and Array Processing, 2000. Proceedings of the Tenth IEEE Workshop on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-5988-7
DOI :
10.1109/SSAP.2000.870075
