Please use this identifier to cite or link to this item: http://www.repositorio.ufc.br/handle/riufc/4015
Title in Portuguese: Blind source separation and identification of nonlinear multiuser channels using second order statistics and modulation codes
Author: Fernandes, Carlos Alexandre Rolim
Favier, Gérard
Mota, João César Moura
Keywords: Telecomunicações
Teleinformática
Issue Date: 2007
Publisher: IEEE
Citation: FERNANDES, C. A. R. ; FAVIER, G. ; MOTA, J. C. M. Blind source separation and identification of nonlinear multiuser channels using second order statistics and modulation codes. In: IEEE SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS (SPAWC), 2007, Helsinque. Anais... Helsinque: IEEE, 2007.
Abstract: In this paper, a Blind Source Separation (BSS) and channel identifi cation method using second order statistics is proposed for nonlinear multiuser communication channels. It is based on the joint diagonalization of a set of covariance matrices. Modulation codes (constrained codes) are used to ensure the orthogonality of nonlinear combinations of the transmitted signals, allowing the application of a joint diagonalization based estimation algorithm. This constitutes a new application of modulation codes, used to introduce temporal redundancy and to ensure some statistical constraints. Identifi ability conditions for the problem under consideration are addressed and some simulation results illustrate the performance of the proposed method.
URI: http://www.repositorio.ufc.br/handle/riufc/4015
metadata.dc.type: Artigo de Evento
Appears in Collections:DETE - Trabalhos apresentados em eventos

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