Cyclostationarity-based parameter estimation in multiuser communications systems

Author

Napolitano, Antonio ; Tanda, Mario

Author_Institution

Dipt. di Ingegneria Elettronica e delle Telecomunicazioni, Univ. di Napoli Federico II, Italy

Volume

1

fYear

1999

fDate

1999

Firstpage

598

Abstract

This paper deals with the estimation of the parameters required in practical implementation of several multiuser detectors. Specifically, a blind algorithm for the estimation of amplitudes, phases, and relative time delays of each user in a multiple-access system is proposed. This algorithm is based on the cyclostationarity features of the received signals and provides estimates of the unknown parameters that are intrinsically immune to the effects of noise and interference. Moreover, it is not based on the usual assumption of Gaussian ambient noise

Keywords

Gaussian noise; amplitude estimation; code division multiple access; delay estimation; multiuser channels; phase estimation; radiofrequency interference; signal detection; spread spectrum communication; CDMA; DS-CDMA; Gaussian ambient noise; PAM signal; amplitude estimation; blind algorithm; cyclostationarity-based parameter estimation; interference immunity; multiple-access system; multiplex received signals; multiuser communications systems; noise immunity; parameter estimation; phase estimation; radio channels; time delay estimation; Amplitude estimation; Delay effects; Delay estimation; Detectors; Frequency estimation; Gaussian noise; Interference; Maximum likelihood detection; Parameter estimation; Phase estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.797204

Filename

797204