PARAFAC2 receivers for orthogonal space-time block codes

Authors:
Mikael Sorensen;Pierre Comon;Sylvie Icart;Luc Deneire
Affiliations:
Laboratorie I3S, CNRS/UNS, Sophia Antipolis, France;Laboratorie I3S, CNRS/UNS, Sophia Antipolis, France;Laboratorie I3S, CNRS/UNS, Sophia Antipolis, France;Laboratorie I3S, CNRS/UNS, Sophia Antipolis, France
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

Citing 11
Cited 0

Space-Time Block Coding for Wireless Communications

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Khatri-Rao space-time codes

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Abstract

Space-Time Block Codes can be represented by tensors, like for example the Kathri-Rao Space Time codes introduced by Sidiropoulos. In this paper, we introduce a PARAallel FACtor analysis 2 (PARAFAC2) model for Orthogonal Space-Time Block Codes (OSTBC). This model, along with a small modification at the transmitter and the use of tensor diagonalisation designed for orthogonal tensors at the receiver, leads us to develop a generic PARAllel FACtor Analysis (PARAFAC) blind receiver for OSTBC. Unlike most tensor based blind receivers, our channel estimator is based on a data tensor rather than on a cumulant tensor.