Space-time joint channel estimation in filtered multitone based multicarrier multibranch systems

Author

Kang, Guixia ; Weckerle, Martin ; Costa, Elena

Author_Institution

Siemens AG, Munich, Germany

Volume

3

fYear

2004

fDate

21-25 March 2004

Firstpage

1844

Abstract

In this paper, we investigate some space-time joint channel estimation (JCE) schemes in filtered multitone (FMT) based multicarrier multibranch (multiuser and/or multiantenna) systems. Each subcarrier is proposed to be processed separately due to the spectral characteristics of the FMT signals On each subcarrier, the wireless channels experienced by all transmit branches are estimated jointly at the receiver. The least square (LS) space-time JCE and weighted least square (WLS) schemes are derived. The constant amplitude zero auto-correlation (CAZAC) code based pilots are proposed for the aforementioned multicarrier applications to reduce the mean square estimation error. Simulation results are provided to validate the theoretical analysis.

Keywords

antenna arrays; channel estimation; correlation theory; least mean squares methods; space-time codes; constant amplitude zero auto-correlation code; filtered multitone; mean square estimation error; multicarrier multibranch systems; multiple antenna; space-time joint channel estimation; weighted least square schemes; Analytical models; Autocorrelation; Broadband antennas; Channel estimation; Estimation error; Least squares methods; OFDM; Signal processing; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE

ISSN

1525-3511

Print_ISBN

0-7803-8344-3

Type

conf

DOI

10.1109/WCNC.2004.1311834

Filename

1311834