Blind channel estimation for long code MIMO CDMA using first-order statistics

Author

Li, Yuanjie ; Yang, Luxi ; He, Zhenya

Author_Institution

Dept. of Radio Eng., Southeast Univ., Nanjing, China

fYear

2004

fDate

20-22 Oct. 2004

Firstpage

97

Lastpage

100

Abstract

In this paper, we consider the problem of blind channel estimation in a multiple-input-multiple-output (MIMO) code division multiple access (CDMA) system employing long spreading codes. The proposed method consists of a decorrelating matched filter with block diagonal structure as the front-end. Based on a clustering procedure, the MIMO channel parameters are estimated efficiently up to a sign factor by exploiting the first-order statistics of the matched filter output. Simulation results illustrate the effectiveness of the proposed method and the robustness to channel order overestimation.

Keywords

3G mobile communication; MIMO systems; channel estimation; code division multiple access; decorrelation; matched filters; statistics; 3G CDMA-based wireless networks; BER; MIMO CDMA; MSE; aperiodic long codes; blind channel estimation; block diagonal filter structure; channel order overestimation robustness; clustering procedure; decorrelating matched filter; filter output first-order statistics; long spreading codes; Blind equalizers; Iterative algorithms; MIMO; Matched filters; Multiaccess communication; Parameter estimation; Receiving antennas; Statistics; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Multimedia, Video and Speech Processing, 2004. Proceedings of 2004 International Symposium on

Print_ISBN

0-7803-8687-6

Type

conf

DOI

10.1109/ISIMP.2004.1434009

Filename

1434009