Title :
Combined space-time multiuser receivers for wideband DS/CDMA communications
Author :
Leung, Lydia L W ; Cheng, Roger S. ; Letaief, Khaled B. ; Murch, Ross D.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., China
Abstract :
It is well known that the capacity of a code division multiple access system is limited by cochannel interference (CCI), which includes both multiple access interference (MAI) and intersymbol interference (ISI). We discuss possible solutions to mitigate the CCI, which include interference canceller, adaptive antenna and the combination of both. Besides, we propose a combined space-time receiver with simplified complexity using pre-beamforming. Simulation results of the receivers with different configurations are shown
Keywords :
adaptive antenna arrays; array signal processing; channel capacity; cochannel interference; code division multiple access; interference suppression; intersymbol interference; mobile radio; multiuser channels; radio receivers; spread spectrum communication; CCI; ISI; MAI; adaptive antenna; capacity; cochannel interference; code division multiple access; combined space-time multiuser receivers; interference canceller; intersymbol interference; multiple access interference; pre-beamforming; wideband DS/CDMA; Adaptive arrays; Binary phase shift keying; Information technology; Interference cancellation; Interference suppression; Multiaccess communication; Multiple access interference; Radiofrequency interference; Spread spectrum communication; Wideband;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.889190
