A blind delay estimation algorithm for long-code DS/CDMA systems

Author

Buzzi, Stefano ; Lops, Marco ; Poor, H. Vincent

Author_Institution

DAEIMI, Univ. degli Studi di Cassino, Italy

fYear

2001

fDate

2001

Firstpage

173

Abstract

The problem of delay estimation in DS/CDMA systems employing aperiodic spreading codes is considered. A blind procedure is proposed, which does not require the use of known training symbols nor does it rely on the knowledge of other users´ signature waveforms. This procedure can be implemented recursively and has a computational complexity that is quadratic in the processing gain. Simulation results reveal that the proposed algorithm provides delay estimates with an error smaller than 10% of the CDMA system chip interval

Keywords

code division multiple access; codes; computational complexity; delay estimation; multiuser channels; spread spectrum communication; aperiodic spreading codes; blind delay estimation algorithm; chip interval; computational complexity; error; long-code DS/CDMA systems; processing gain; recursive estimation; simulation results; Code standards; Computational complexity; Computational modeling; Delay estimation; Digital communication; Multiaccess communication; Multiple signal classification; Parameter estimation; Proposals; Time varying systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2001. Proceedings. 2001 IEEE International Symposium on

Conference_Location

Washington, DC

Print_ISBN

0-7803-7123-2

Type

conf

DOI

10.1109/ISIT.2001.936036

Filename

936036