Space-time coded CDMA: blind equalization and multiuser detection

Author

Yue, Xiaodong ; Zhu, Weihua ; Fan, Howard

Author_Institution

Dept. of Math. & Comput. Sci., Central Missouri State Univ., Warrensburg, MO, USA

Volume

1

fYear

2004

fDate

7-10 Nov. 2004

Firstpage

607

Abstract

The blind multiuser detection problem for asynchronous direct sequence code division multiple access (DS-CDMA) systems operating in a multipath environment using multiple transmit and receive antennas is considered. The Alamouti space-time block code (STBC) for two-transmit-antenna configuration is adopted. Using only the spreading code of the desired user, a blind minimum mean square error (MMSE) detector is obtained without explicit channel estimation. Corresponding batch and adaptive algorithms are developed. Simulations verify the effectiveness of the proposed method.

Keywords

antenna arrays; blind equalisers; block codes; channel coding; code division multiple access; least mean squares methods; mobile radio; multipath channels; multiuser detection; receiving antennas; space-time codes; spread spectrum communication; transmitting antennas; Alamouti space-time block code; DS-CDMA; MMSE; STBC; asynchronous direct sequence code division multiple access; blind minimum mean square error detector; blind multiuser detection problem; mobile communication; multipath environment; multiple transmit antennas; receive antennas; Adaptive algorithm; Blind equalizers; Block codes; Channel estimation; Detectors; Direct-sequence code-division multiple access; Mean square error methods; Multiaccess communication; Multiuser detection; Receiving antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on

Print_ISBN

0-7803-8622-1

Type

conf

DOI

10.1109/ACSSC.2004.1399206

Filename

1399206