SAGE-based multiuser detection for multirate DS/CDMA systems

Author

De Maio, A. ; Episcopo, R.

Author_Institution

DIET, Univ. "Federico II", Naples, Italy

Volume

2

fYear

2002

fDate

3-6 Nov. 2002

Firstpage

1424

Abstract

We consider the problem of multiuser detection for synchronous multirate DS/CDMA systems. We assume that each user may transmit at one out of S available data-rates. Thus, we devise and assess a novel multiuser receiver based on the space alternating generalized expectation-maximization (SAGE) algorithm. Interestingly, the resulting algorithm has an acceptable computational complexity and, in general, outperforms several linear multirate receivers.

Keywords

3G mobile communication; code division multiple access; computational complexity; mobile radio; multiuser detection; optimisation; radio receivers; spread spectrum communication; 3G mobile communication systems; DS-CDMA; SAGE algorithm; computational complexity; linear multirate receivers; multirate DS/CDMA systems; multiuser detection; space alternating generalized expectation-maximization algorithm; synchronous DS/CDMA systems; third-generation wireless networks; Computational complexity; Data communication; Maximum likelihood detection; Mobile communication; Multiaccess communication; Multiuser detection; Quality of service; Throughput; Video recording; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-7576-9

Type

conf

DOI

10.1109/ACSSC.2002.1197014

Filename

1197014