Iterative cyclic subspace tracking for blind adaptive multiuser detection in multirate CDMA systems (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Iterative cyclic subspace tracking for blind adaptive multiuser detection in multirate CDMA systems (Articolo in rivista) (literal)

Anno

• 2003-01-01T00:00:00+01:00 (literal)

Alternative label

• Buzzi S., Lops M., Pauciullo A. (2003)
  Iterative cyclic subspace tracking for blind adaptive multiuser detection in multirate CDMA systems
  in IEEE transactions on vehicular technology
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Buzzi S., Lops M., Pauciullo A. (literal)

Pagina inizio

• 1463 (literal)

Pagina fine

• 1475 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 52 (literal)

Rivista

• IEEE transactions on vehicular technology (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Titolo

• Iterative cyclic subspace tracking for blind adaptive multiuser detection in multirate CDMA systems (literal)

Abstract

• In this paper, the problem of subspace-based blind adaptive multiuser detection in multirate direct-sequence code-division multiple-access (DS-CDMA) systems adopting short (periodic) spreading codes is considered. The solution that we propose is based on the well-known formulation of the linear minimum mean-squared error and decorrelating detectors in terms of signal subspace parameters. Since in a multirate scenario the correlation properties of the observable and, hence, the signal subspace parameters are periodically time-varying, classical subspace tracking algorithms, which assume that the subspace to be tracked is time-invariant or slowly time-varying, are shown to be not useful in this situation. A new recursive cyclic subspace tracking algorithm is thus developed. This procedure, which is based on a generalization of the PASTd algorithm, is able to capture the periodical variations of the signal subspace, and thus enables subspace-based blind adaptive multiuser detection in multirate CDMA systems. The proposed algorithm has a smaller computational complexity than the recently developed cyclic recursive-least-squares procedure, and, as numerical results confirm, is capable of providing very satisfactory performance. (literal)

Prodotto di

• Institute for electromagnetic sensing of the environment (IREA) (Istituto)

Autore CNR

• ANTONIO PAUCIULLO (Persona)

Incoming links:

Autore CNR di

• ANTONIO PAUCIULLO (Persona)

Prodotto

• Institute for electromagnetic sensing of the environment (IREA) (Istituto)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• IEEE transactions on vehicular technology (Rivista)