Use este identificador para citar ou linkar para este item: http://www.repositorio.ufc.br/handle/riufc/844
Título: A Constrained factor decomposition with application to MIMO antenna systems
Autor(es): Almeida, André Lima Férrer de
Favier, Gérard
Mota, João Cesar M.
Palavras-chave: Espaço e tempo
Antenas (Eletrônica)
Teleinformática
Data do documento: Jun-2008
Editor: IEEE Transactions on Signal Processing
Citação: ALMEIDA, A. L. F. de; FAVIER, G. ; MOTA, J. C. M. (2008)
Abstract: In this paper, we formulate a new tensor decomposition herein called constrained factor (CONFAC) decomposition. It consists in decomposing a third-order tensor into a triple sum of rank-one tensor factors, where interactions involving the components of different tensor factors are allowed. The interaction pattern is controlled by three constraint matrices the columns of which are canonical vectors. Each constraint matrix is associated with a given dimension, or mode, of the tensor. The explicit use of these constraint matrices provides degrees of freedom to the CONFAC decomposition for modeling tensor signals with constrained structures which cannot be handled with the standard parallel factor (PARAFAC)decomposition. The uniqueness of this decomposition is discussed and an application to multiple-input multiple-output (MIMO) antenna systems is presented. A new transmission structure is proposed, the core of which consists of a precoder tensor decomposed as a function of the CONFAC constraint matrices. By adjusting the precoder constraint matrices, we can control the allocation of data streams and spreading codes to transmit antennas. Based on a CONFAC model of the received signal, blind symbol/code/channel recovery is possible using the alternating least squares algorithm. For illustrating this application, we evaluate the bit-error-rate (BER) performance for some configurations of the precoder constraint matrices.
Descrição: ALMEIDA, A. L. F. de; FAVIER, G.; MOTA, João C. M. A Constrained Factor Decomposition With Application to MIMO Antenna Systems. IEEE Transactions on Signal Processing, v. 56, p. 2429-2442, 2008.
URI: http://www.repositorio.ufc.br/handle/riufc/844
ISSN: 1053-587X
Aparece nas coleções:DETE - Artigos publicados em revista científica

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
2008_art_alfalmeidaA Constrained Factor Decomposition With.pdf641,01 kBAdobe PDFVisualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.