PARATUCK-3 Semi-Blind Receivers for Three-Hop Cooperative MIMO Relay Systems

Pedro M. R. de Oliveira, C. Alexandre Rolim Fernandes

DOI: 10.14209/sbrt.2017.245

Evento: XXXV Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2017)

Keywords: Cooperative Systems MIMO PARATUCK-3 Kronecker Product Semi-Blind Receivers

Abstract

In this paper, it is considered a three-hop oneway AF cooperative communication system, using a Khatri-Rao Space-Time (KRST) coding at the source. It is shown that the third-order tensor of signals received at the destination node satisfies a PARATUCK-3 tensor model. This tensorial modeling enables a joint semi-blind estimation of the transmitted symbols, the relay-destination channel and a global channel that contains the gains of the other channels. Two non-iterative estimation algorithms based on the Kronecker product are then proposed. The performance of these receivers is evaluated by means of computational simulation results.

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