Propagation delay estimation of DS-CDMA signals in a fading environment

Author

Ström, Erik G. ; Parkvall, Stefan ; Miller, Scott L. ; Ottersten, Björn E.

Author_Institution

Dept. of Electr. Eng., Florida Univ., Gainesville, FL, USA

fYear

1994

fDate

28 Nov- 2 Dec 1994

Firstpage

85

Lastpage

89

Abstract

The problem considered is of estimating propagation delays of the transmitted signals in a direct sequence code division multiple access (DS-CDMA) system operating over fading channels. Special attention is given to the near-far problem. An estimator based on subspace identification techniques is proposed. The Cramer-Rao bound is presented and used as a benchmark when evaluating the performance of the estimator

Keywords

code division multiple access; delays; fading; parameter estimation; pseudonoise codes; spread spectrum communication; telecommunication channels; Cramer-Rao bound; DS-CDMA signals; direct sequence code division multiple access; fading environment; near-far problem; performance; propagation delay estimation; subspace identification techniques; transmitted signals; Correlators; Data communication; Decorrelation; Delay estimation; Direct-sequence code-division multiple access; Fading; Multiaccess communication; Propagation delay; Sensor systems; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 1994. Communications Theory Mini-Conference Record, 1994 IEEE GLOBECOM., IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-1820-X

Type

conf

DOI

10.1109/CTMC.1994.512582

Filename

512582