Tensor coding for CDMA-MIMO wireless communication systems

Gérard Favier (1) , Michele N. da Costa (1) , André L. F. de Almeida (2) , João M. T. Romano (3)

1 Laboratoire d'Informatique, Signaux, et Systèmes de Sophia-Antipolis (I3S) / Equipe SIGNAL
2 GTEL - Wireless Telecom Research Group [Fortaleza]
3 DSPCom

In this paper, we propose a tridimensional tensor coding for multiple-input multiple-output (MIMO) communication systems. This coding allows spreading and multiplexing the transmitted symbols in both space and time domains, owing the use of two allocation matrices. Assuming flat Rayleigh fading channels, the signals received by K receive antennas during P time blocks, composed of N symbol periods each, with J chips per symbol, form a fourth-order tensor that satisfies a new constrained tensor model. A two-step alternating least squares (ALS) algorithm is proposed for blindly and jointly estimating the channel and the transmitted symbols. The performance of the proposed blind receiver is evaluated by means of computer simulations.

Mots clés: Tensor coding; PARATUCK model; CDMA; MIMO systems; blind receiver

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Gérard Favier, Michele N. da Costa, André L. F. de Almeida, João M. T. Romano. Tensor coding for CDMA-MIMO wireless communication systems. 19th European Signal Processing Conference (EUSIPCO), Aug 2011, Barcelone, Spain. 4 p. ⟨hal-00718397⟩