An efficient ZF-SIC detection algorithm in MIMO CDMA system

Author

Wang, Gang ; Wang, Dandan ; Li, Daoben

Author_Institution

Dept. of Inf. Eng., Beijing Univ. of Posts & Telecommun., China

Volume

2

fYear

2003

fDate

7-10 Sept. 2003

Firstpage

1708

Abstract

In this paper, several conventional detection algorithms including MLD (maximum likelihood detector), ZF (zero forcing) and ZF-SIC (zero forcing serial interference cancellation) for DS/CDMA system with MIMO (multiple-input multiple-output) antenna processing in the downlink are investigated. Theses algorithms are hard to be utilized in practice for their high computation complexity or relatively poor performance. Based on this, a new ZF-SIC algorithm is proposed. Analysis and simulation results show that the new algorithm performs almost as good as the conventional ZF-SIC algorithm does, while it has much lower computation complexity.

Keywords

MIMO systems; code division multiple access; computational complexity; interference suppression; maximum likelihood detection; radio links; radiofrequency interference; spread spectrum communication; DS-CDMA system; MIMO antenna processing; MIMO system; ZF-SIC detection algorithm; direct sequence-code division multiple access; maximum likelihood detector; serial interference cancellation; zero forcing; Algorithm design and analysis; Detection algorithms; Detectors; Downlink; High performance computing; Interference cancellation; MIMO; Maximum likelihood detection; Multiaccess communication; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on

Print_ISBN

0-7803-7822-9

Type

conf

DOI

10.1109/PIMRC.2003.1260406

Filename

1260406