Combined adaptive interference cancellation with antenna array for CDMA systems

Author

Dai, Yuying ; Xue, Guoqiang ; LE-NGOC, THO ; Weng, Jianfeng

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

Volume

1

fYear

2000

fDate

2000

Firstpage

143

Abstract

We combined the multistage adaptive parallel interference canceller with an antenna array. Two combination schemes are proposed. In the first approach, interference cancellation is performed at each element of the antenna followed by beamforming. The second method reduces the complexity by carrying out beamforming first. The output of the beamformer is used by the interference canceller. The proposed method provides a better performance than the array decorrelating detector at a considerably low complexity

Keywords

AWGN channels; adaptive signal detection; adaptive signal processing; array signal processing; code division multiple access; computational complexity; interference suppression; multiuser channels; radiofrequency interference; spread spectrum communication; AWGN environment; BPSK; antenna array; antenna array processing; array decorrelating detector; beamforming; combined adaptive interference cancellation; complexity reduction; multiaccess interference; multistage adaptive parallel interference canceller; multiuser detection; near-far problem; synchronous DS-CDMA system; Adaptive arrays; Antenna arrays; Decorrelation; Detectors; Interference cancellation; Least squares approximation; Multiaccess communication; Multiuser detection; Receiving antennas; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-6451-1

Type

conf

DOI

10.1109/GLOCOM.2000.891724

Filename

891724