Title :
A dynamic groupwise successive interference cancellation array receiver scheme for DS-CDMA systems
Author :
Shao, Lei ; Bi, Guanguo
Author_Institution :
Dept. of Radio Eng., Southeast Univ., Nanjing, China
Abstract :
Integrating an adaptive antenna array (AAA) with multiuser detection (MUD) is a new research area aimed at improving the system performance and capacity. A new dynamic groupwise successive interference cancellation array receiver scheme for DS-CDMA systems is proposed and compared with other schemes. In this scheme, AAA beamforming based on direction of arrival (DOA) estimation is integrated with multistage interference cancellation (IC). Simulation results illustrate that our method outperforms existing interference cancellers for DS-CDMA systems in a multipath Rayleigh fading channel environment
Keywords :
Rayleigh channels; antenna phased arrays; array signal processing; code division multiple access; direction-of-arrival estimation; interference suppression; land mobile radio; multipath channels; multiuser channels; radiofrequency interference; receiving antennas; signal detection; spread spectrum communication; DOA estimation; DS-CDMA systems; adaptive antenna array; adaptive array beamforming; direction of arrival estimation; dynamic groupwise array receiver; multipath Rayleigh fading channel; multistage interference cancellation; multiuser detection; multiuser interference cancellation; simulation results; successive interference cancellation; system capacity; system performance; Adaptive arrays; Antenna arrays; Array signal processing; Direction of arrival estimation; Fading; Integrated circuit modeling; Interference cancellation; Multiaccess communication; Multiuser detection; System performance;
Conference_Titel :
Wireless Communications and Networking Confernce, 2000. WCNC. 2000 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6596-8
DOI :
10.1109/WCNC.2000.904654
