Receptores Multiusuários DS/CDMA Baseados na Projeção de Sinais em Subespaços Vetoriais

Jaime Laelson Jacob; Taufik Abrão; Paul Jean Etienne Jeszensky

doi:10.5433/1679-0375.2006v27n1p79

DS/CDMA Multiuser Detectors Based on Subspace Methods

Authors

Jaime Laelson Jacob Universidade Estadual de Londrina
Taufik Abrão Universidade Estadual de Londrina
Paul Jean Etienne Jeszensky Universidade de São Paulo

DOI:

https://doi.org/10.5433/1679-0375.2006v27n1p79

Keywords:

Blind and Group-Blind Detection, Multiuser Detection, DS/CDMA, Orthogonal Vectors.

Abstract

In this work blind and group-blind (Bld-MuD and SBld-MuD, respectively) multiuser detectors (MuD) are analyzed from the point of view of the trade-off between performance versus complexity; specifically, the blind and group-blind detectors are characterized based on the direct inversion of correlation matrix (DMI), the minimum mean square error (MMSE) and hybrid SBld-MuD in the forms I and II. Monte Carlo simulations (MCS) were carried out in order to prove analytical performance, being evidenced the superiority of SBld-MuD detectors. The contribution of this work consists of the compared analysis of the performance degradation for the three detectors, considering errors in the estimates of the channel and system parameters. MCS results indicated the superiority of the detector Hybrid SBld-MuD I, considering errors in the carrier phase and channel coefficients (module and phase) estimates.

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Author Biographies

Jaime Laelson Jacob, Universidade Estadual de Londrina

Estudante de mestrado do Departamento de Engenharia Elétrica, Universidade Estadual de Londrina (DEEL-UEL)

Taufik Abrão, Universidade Estadual de Londrina

Professor Adjunto do DEEL-UEL.

Paul Jean Etienne Jeszensky, Universidade de São Paulo

Professor Titular da Escola Politécnica da USP, PTC.

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Published

2006-07-15

How to Cite

Jacob, J. L., Abrão, T., & Jeszensky, P. J. E. (2006). DS/CDMA Multiuser Detectors Based on Subspace Methods. Semina: Ciências Exatas E Tecnológicas, 27(1), 79–97. https://doi.org/10.5433/1679-0375.2006v27n1p79

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Issue

Vol. 27 No. 1 (2006)

Section

Original Article

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