Space-time spreading-multiplexing for MIMO wireless communication systems using the PARATUCK-2 tensor model

Authors:
André L. F. de Almeida;Gérard Favier;João C. M. Mota
Affiliations:
I3S Laboratory, University of Nice-Sophia Antipolis, CNRS, France and GTEL-Wireless Telecom Research Group, Federal University of Ceará, Fortaleza, Brazil;I3S Laboratory, University of Nice-Sophia Antipolis, CNRS, France;GTEL-Wireless Telecom Research Group, Federal University of Ceará, Fortaleza, Brazil
Venue:
Signal Processing
Year:
2009

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Abstract

In this paper, we present a new space-time spreading-multiplexing model for multiple-input multiple-output (MIMO) wireless communication systems relying on a tensor modeling of the transmitted and received signals. At the transmitter, we exploit the core of a PARATUCK-2 tensor model composed of a precoding matrix and two allocation matrices that allow to control the spreading and multiplexing of the data streams across the space dimension (transmit antennas) and time-dimension (time-slots). Different MIMO schemes combining space-time multiplexing and diversity can be derived from the proposed model. The identifiability and uniqueness of the PARATUCK-2 tensor model for the received signal are discussed and subsequently exploited for a joint blind channel estimation and symbol detection. The bit-error-rate performance of different transmit schemes derived from the proposed tensor model is evaluated by means of computer simulations.