Transform domain array processing for CDMA systems

Author

Zhang, Yimin ; Yang, Kehu ; Amin, Moeness G.

Author_Institution

Dept. of Electr. & Comput. Eng., Villanova Univ., PA, USA

fYear

2000

fDate

2000

Firstpage

23

Lastpage

27

Abstract

In this paper, we propose transform domain array processing schemes for DS-CDMA communications. Space-time adaptive processing (STAP) is a useful means to combat the multiuser interference (MUI) in CDMA systems. The computation burden and slow convergence are two major problems in implementing the STAP. This paper proposes optimum and sub-optimum transform domain arrays with different feedback schemes for CDMA communications. The transform domain arrays provide reduced computations over traditional implementation methods as well as offering improved convergence performance, leading to an efficient system implementation

Keywords

array signal processing; code division multiple access; convergence of numerical methods; feedback; interference suppression; optimization; space-time adaptive processing; spread spectrum communication; transforms; DS-CDMA communications; STAP; convergence performance; feedback schemes; multiuser interference; optimum arrays; space-time adaptive processing; sub-optimum arrays; transform domain array processing; Array signal processing; Convergence; Discrete Fourier transforms; Discrete transforms; Discrete wavelet transforms; Diversity reception; Feedback loop; Interference suppression; Intersymbol interference; Multiaccess communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal and Array Processing, 2000. Proceedings of the Tenth IEEE Workshop on

Conference_Location

Pocono Manor, PA

Print_ISBN

0-7803-5988-7

Type

conf

DOI

10.1109/SSAP.2000.870074

Filename

870074