Analysis of a subspace channel estimation technique for multicarrier CDMA systems

Author

Escudero, Carlos J. ; Iglesia, Daniel I. ; Bugallo, Mónica F. ; Castedo, Luis

Author_Institution

Dept. de Electron. y Sistemas, La Coruna Univ., Spain

fYear

2000

fDate

2000

Firstpage

10

Lastpage

14

Abstract

In this paper we investigate a blind channel estimation method for multicarrier CDMA systems that uses a subspace decomposition technique. This technique exploits the orthogonality property between the noise subspace and the received user codes to obtain a channel identification algorithm. In order to analyze the performance of this algorithm, we derived a theoretical expression of the estimation MSE using a perturbation approach. This expression is compared with the numerical results of some computer simulations to illustrate the validity of the analysis

Keywords

channel coding; code division multiple access; mean square error methods; parameter estimation; perturbation techniques; MSE; blind channel estimation; channel identification algorithm; computer simulations; multicarrier CDMA systems; noise subspace; orthogonality property; performance; perturbation approach; received user codes; subspace channel estimation; subspace decomposition; AWGN; Bandwidth; Baseband; Blind equalizers; Channel estimation; Discrete Fourier transforms; Dispersion; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Statistical Signal and Array Processing, 2000. Proceedings of the Tenth IEEE Workshop on

Conference_Location

Pocono Manor, PA

Print_ISBN

0-7803-5988-7

Type

conf

DOI

10.1109/SSAP.2000.870071

Filename

870071